Server/DC-MHS: Difference between revisions

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[[File:OCP-servers-v1-17a3x.png|right]]
[[File:OCP-Open-compute-DC-MHS-icon-3x.png|right]]


==Welcome==
==Welcome==


Welcome to the OCP DC-MHS Sub-Project.
Welcome to the OCP Data Center – Modular Hardware System (DC-MHS) Sub-Project.


DC-MHS R1 envisions interoperability between key elements of datacenter, edge and enterprise infrastructure by providing consistent interfaces and form factors among modular building blocks.
DC-MHS R1 envisions interoperability between key elements of datacenter, edge and enterprise infrastructure by providing consistent interfaces and form factors among modular building blocks.
Line 9: Line 9:
DC-MHS R1 standardizes a collection of HPM (Host Processor Modules) form-factors and supporting ingredients to allow interoperability of HPMs and platforms.
DC-MHS R1 standardizes a collection of HPM (Host Processor Modules) form-factors and supporting ingredients to allow interoperability of HPMs and platforms.


There are seven workstreams that comprise DC-MHS:
There are six workstreams that comprise DC-MHS. The objectives of the six workstreams are the following:
 
*M-HPM (Host Processor Modules) Workstream which involves three specifications:
**M-FLW (FulL Width HPM)
***Specify the requirements of a Full Width Host Processor Module (HPM). This is for use within products designed for minimum 19” rack, also known as compliant with EIA-310-E but can also accommodate larger 21” racks. This form factor enables a full width HPM usage for CPUs, DIMMs, and related features.
**M-DNO (DeNsity Optimized HPM)
***Outline the requirements of a family of partial width, DeNsity Optimized Host Processor Module (HPM) form factors within the OCP Modular 240 hardware system group of specifications (M-DNO for short). This M-DNO specification embodies design considerations for CPU, DIMMs, and other server processor related features commonly used by the industry today but is not limited to only those functions.
**M-SDNO (Modular Hardware System Scalable DeNsity Optimized Specification)
***Builds upon M-DNO, defines partial and full width HPMs with variable board outlines covering 19” EIA-310 and 21” OpenRack v3 infrastructure.
*M-XIO/PESTI (eXtended I/O Connectivity/PEripheral SideBand Tunneling Interface)
**Outline the Modular Extensible I/O (M-XIO) source connector hardware strategy. An M-XIO source connector enables entry and exit points between sources such as Motherboards, Host Processor Modules & RAID Controllers, and peripheral subsystems such as PCIe risers, backplanes, etc. M-XIO includes the connector, high speed and management signal interface details and supported pinouts. Additionally, the workstream defines Interface (M-PESTI) base requirements for electrical and protocol compatibility between components of a DC-MHS platform. The M-PESTI protocol overloads a common PRSNT# signal with additional capabilities beyond simple presence/absence of a peripheral.
*M-PIC (Platform Infrastructure Connectivity)
**Defines and standardizes common elements needed to interface a Host Processor Module (HPM) to the platform/chassis infrastructure elements/subsystems within the DC-MHS 1.0 family of OCP servers. Standardization of the common interfaces and connectors enables hardware compatibility between DC-MHS HPMs and various DC-MHS system components.
*M-CRPS (Common Redundant Power Supply)
**Defines all the requirements for an M-CRPS internal redundant power supply used in Open Compute Project that could be used in different environments like home/office, datacenter, and high-performance computing, hence harmonizing the server power supply requirements used in the industry with the purpose of creating a standard specification that the customers and vendors of Enterprise and Hyperscale can use for their products.
*M-SIF (Shared InFrastructure)
**Improve interoperability related to shared infrastructure enclosures with multiple, serviceable modules. Modules containing elements (HPMs, DC-SCM, peripherals, etc.) are blind-matable and hot-pluggable into a shared infrastructure enclosure.
*M-PnP (Modular Plug and Play)
**To ease system firmware and platform enablement integration. Defines interoperability for DC-MHS supporting systems to require and use industry standard processes using accepted algorithms and protocols to discover, manage, secure and maintain systems based on DC-MHS ingredients.


*[https://www.opencompute.org/wiki/Server/DC-MHS/M-FLW M-FLW (FulL Width HPM)]
*[https://www.opencompute.org/wiki/Server/DC-MHS/M-DNO M-DNO (DeNsity Optimized HPM)]
*[https://www.opencompute.org/wiki/Server/DC-MHS/M-XIO_M-PESTI M-XIO (eXtended I/O Connectivity)]
*[https://www.opencompute.org/wiki/Server/DC-MHS/M-PIC M-PIC (Platform Infrastructure Connectivity)]
*[https://www.opencompute.org/wiki/Server/DC-MHS/M-CRPS M-CRPS (Common Redundant Power Supply)]
*[https://www.opencompute.org/wiki/Server/DC-MHS/M-XIO_M-PESTI M-PESTI (PEripheral SideBand Tunneling Interface)]
*[https://www.opencompute.org/wiki/Server/DC-MHS/M-SIF M-SIF (Shared InFrastructure)]


Disclaimer: Please do not submit any confidential information to the Project Community. All presentation materials, proposals, meeting minutes and/or supporting documents are published by OCP and are open to the public in accordance with OCP's Bylaws and IP Policy. This can be found on the [http://www.opencompute.org/about/ocp-policies/ OCP Policies] page. If you have any questions please contact OCP.
Disclaimer: Please do not submit any confidential information to the Project Community. All presentation materials, proposals, meeting minutes and/or supporting documents are published by OCP and are open to the public in accordance with OCP's Bylaws and IP Policy. This can be found on the [http://www.opencompute.org/about/ocp-policies/ OCP Policies] page. If you have any questions please contact OCP.


==Project Leadership==
==Project Leadership==


===Sub-Project Leads===
===Sub-Project Leads===
Line 27: Line 39:
*[mailto:shawn.dube@dell.com Shawn Dube] (Dell)
*[mailto:shawn.dube@dell.com Shawn Dube] (Dell)


===Incubation Committee Representative===
 
*[mailto:tavallaei@google.com Siamak Tavallaei] (Google)
===Spec. Authors===
*M-FLW:  [mailto:brian.d.aspnes@intel.com Brian Aspnes] (Intel) and [mailto:corey.hartman@dell.com Corey Hartman] (Dell)
*M-DNO: [mailto:dirk.blevins@intel.com Dirk Blevins] (Intel) and [mailto:michael.gregoire@dell.com Michael Gregoire] (Dell)
*M-XIO/PESTI:  [mailto:charlie.ziegler@dell.com Charlie Ziegler] (Dell) and [mailto:javier.lasa@intel.com Javier Lasa] (Intel)
*M-PIC:  [mailto:tim.lambert@dell.com Tim Lambert] (Dell) and [mailto:clifford.h.dubay@intel.com Cliff DuBay] (Intel)
*M-CRPS:  [mailto:aurelio.rodriguez.echevarria@intel.com Aurelio Rodriguez Echevarria] (Intel) and [mailto:jon.lewis@dell.com Jon Lewis] (Dell)
*M-SIF:  [mailto:dirk.blevins@intel.com Dirk Blevins] (Intel) and [mailto:gregory.sellman@amd.com Greg Sellman] (AMD)
*M-SDNO:  [mailto:brian.d.aspnes@intel.com Brian Aspnes] (Intel), [mailto:michael.gregoire@dell.com Michael Gregoire] (Dell), [mailto:corey.hartman@dell.com Corey Hartman] (Dell), and [mailto:andrew.junkins@amd.com Andy Junkins] (AMD)
*M-PnP: [mailto:tim.lambert@dell.com Tim Lambert] (Dell) and [mailto:phillip.leech@hpe.com Phil Leech] (HPE)
 


===DC-MHS Wiki Administrator===
===DC-MHS Wiki Administrator===
*[mailto:john.a.dinsmoor@intel.com John Dinsmoor] (Intel)
*[mailto:john.a.dinsmoor@intel.com John Dinsmoor] (Intel)


==Current Status==


==Current Status==
DC-MHS R1 v1.0 specs have been approved by the OCP Incubation Committee in November 2022.
 
DC-MHS workstreams are working the DC-MHS R1 v1.1 specifications.  Note:  M-SIF is a workstream new to DC-MHS.  An early version of the M-SIF specification (version 0.5) is included in the Latest DC-MHS Specification section.


DC-MHS R1 specs have been approved by the OCP Incubation Committee in November 2022.
A link to a Readme file explaining how to use the following tables (Latest DC-MHS Specifications, Errata and Supporting Documentation, and Inactive Documents) is here:  [https://docs.google.com/presentation/d/1CyVsLCPpkJb0FV_ZOYjWndqE4AHATdh-/edit?usp=share_link&ouid=107990764505043211297&rtpof=true&sd=true Link]


DC-MHS workstreams are working the DC-MHS R1.1 specifications. ''Note: M-SIF is a workstream new to DC-MHS. M-SIF is working on R1 specification.''


===Latest Released DC-MHS Specifications===


===Approved Contributions===
Note:  The Final Spec Agreement (FSA) for the latest specs has not yet been signed.  You may access the released versions in the Contribution Database ([https://www.opencompute.org/contributions?query=DC-MHS Contribution Database]).


{| class="wikitable" style="width: 100%; margin:auto"
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Type !! Description !! Version !! Submit Date !! Contributor !! style="min-width:100px;"| Link !! Notes
|-
| Specification
|| M-DNO Base Specification
|| 1.1 RC2
|| 3/21/2024
|| Mike Gregoire
|| [https://drive.google.com/file/d/1My2AvE3catnghCFOhGAXKFH8Wwu15TtS/view?usp=drive_link Link (non CB Version)]<br>[https://drive.google.com/file/d/1R300DeVCdboe04hk8OYSv1CkPaf0pNG_/view?usp=drive_link Link (CB version)]
|| Updates:
*Completed M-DNO Type 3 length to be consistent with M-SDNO.A555
*Updated M-DNO to be consistent with M-SDNO
|-
|-
! Workstream !! Spec
| Specification
|| M-PIC Base Specification 48V Addendum
|| 0.3
|| 3/1/2024
|| Cliff DuBay
|| [https://drive.google.com/file/d/1s-LYJnZg-TUbDS0f_ufa7lx-AXCrfJXd/view?usp=drive_link 0.3 Link (non CB Version)]<br>
[https://drive.google.com/file/d/1eoLctpEQ2kFhkVWWUuBd6LZsPAN3vHG8/view?usp=drive_link 0.3 Link (CB version)]
|| Updates:
Early directional version (0.3) of the M-PIC Base Specification 48V Addendum.
The 48V content is being developed in a separate document with the intent to integrate it into the main M-PIC specification once the content is ready.
|-
|-
| M-FLW || [https://www.opencompute.org/documents/m-flw-r1-v1p0-rc5-pdf SPEC, DC-MHS M-FLW]
| Specification
|| M-PIC Base Specification
|| 1.04
|| 3/1/2024
|| Cliff DuBay
|| [https://drive.google.com/file/d/1N-yCjBuOtXmVqwwgVKK24-4pA9kNq1UN/view?usp=drive_link 1.04 Link (non CB Version)]<br>
[https://drive.google.com/file/d/1ORw0zDfueXGU_BPJ3ZJsr7hdOyiesqzX/view?usp=drive_link 1.04 Link (CB version)]
|| Updates:
*Addressed V1.03 Errata.- Updated FULL_PWR_CYCLE_N/FLEXIO to avoid power-up failures.
*Updated PICPWR labeling requirements.
*Updated DC-SCM revisions supported.
*Simplified/clarified +12VStby "OR-ing", cable construction expectations, control panel SPI, and DC-SCM.
|-
|-
| M-DNO || [https://www.opencompute.org/documents/m-dno-r1-v1p0-rc5-pdf SPEC, DC-MHS M-DNO]
| Specification
|| M-CRPS Base Specification
|| 1.04 RC3
|| 2/22/24
|| Aurelio Rodriguez Echevarria
|| [https://drive.google.com/file/d/1b97aRO_2w_SQcgmHw4N_CxOCRVi2v61k/view?usp=drive_link RC3 Link]
[https://drive.google.com/file/d/1Kv0zMdAfCHDvTC44UtOpCWHt1AbMdmr4/view?usp=drive_link Mech Dwg]
|| Update:
*Updated typo in a dimension in the following mechanical drawings.
|-
|-
| M-XIO || [https://www.opencompute.org/documents/m-xio-r1-v1p0-rc4-pdf SPEC, DC-MHS M-XIO]
| Specification
|| M-SDNO Base Specification
|| 0.7 RC3
|| 1/29/2024
|| Brian Aspnes
|| [https://drive.google.com/file/d/1obyJXN5zDATVEsaMi_aduoFxQsa6Gzf4/view?usp=drive_link 0.7 Link]
|| Major Changes including Class C Definition and Class C/D Primary SCM/NIC moved for common chassis.
|-
|-
| M-PIC || [https://www.opencompute.org/documents/m-pic-r1-v1p0-rc7-pdf SPEC, DC-MHS M-PIC]
| Specification
|| M-XIO Base Specification
|| 1.03
|| 11/21/23
|| Javier Lasa
|| [https://drive.google.com/file/d/1Awa3AjaGwgr4tY9aZZJCqnPHAN4o69Sk/view?usp=drive_link 1.03 Link (non CB Version)]
[https://drive.google.com/file/d/159tpefsdjDxQl6xljy-ZA_V6Wy365a-0/view?usp=drive_link 1.03 Link (CB version)]
|| Updates:
*Version 1.03 of the specification with and without change bar.
*Changed pull-up from 127Kohm to 100Kohm on FLEXIO / CBL_PRES_PESTI_N topologies.
|-
|-
| M-CRPS || [https://www.opencompute.org/documents/m-crps-r1-v1p0-rc4-pdf SPEC, DC-MHS M-CRPS]
| Specification
|| M-SIF Base Specification
|| 0.5
|| 10/2/2023
|| Greg Sellman
|| [https://drive.google.com/file/d/1XydP-ZXhKFRANi6Wuhtkp7TVAfkKKRCZ/view?usp=drive_link 0.5 Link (non CB Version)]
[https://drive.google.com/file/d/1oiK13rE4i1sBsobHv1aWAffGIen5a1X4/view?usp=drive_link 0.5 Link (CB version)]
|| Updates to high-speed IO & management interfaces. Connectors defined.
|-
|-
| M-PESTI || [https://www.opencompute.org/documents/m-pesti-r1-v1p0-rc2-pdf SPEC, DC-MHS M-PESTI]
| Specification
|| M-PESTI Base Specification
|| 1.1 RC5
|| 7/18/2023
|| Jeff Kennedy
|| [https://drive.google.com/file/d/1hnOL2afwPmXMyK99ljcBcCwqK_1bMZD4/view?usp=drive_link 1.1 RC5 Link (no change bar)]<br>[https://drive.google.com/file/d/1KIR9rJocHDXlJDDKsJanxMosnbyCxpRY/view?usp=drive_link 1.1 RC5 Link (CB Version)]
|| Updates:
*BAUD accuracy tolerance changed to +/-2%.
*Overall clarification on the spec, general clean up.
*Simplified payload headers and source to destination discovery examples.
*See specification for detailed updates.
|-
|-
| M-SIF || Workstream new to DC-MHS in October 2022. Spec is in progress.
| Specification
|| M-FLW Base Specification
|| v1.01 RC2
|| 6/1/2023
|| Brian Aspnes
|| [https://drive.google.com/file/d/1xmUP0tMXLyHLYNhPwTmUvEaFyTK-oPqj/view?usp=drive_link 1.01 RC2 Link]<br>[https://drive.google.com/file/d/1Y7vwjZ58c4XrWGqw7mmbGSWxuwjVuBP6/view?usp=drive_link 1.01 RC2 Link (CB Version)]
||
*Fixes for date mismatches and Figure numbers.
*Change bar version
|}
|}


===Latest Released DC-MHS MCAD===


===Active Documents===
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Spec. Impacted !! Name !! Format !! Version !! Submit Date !! Contributor !! Link !! Notes
|-
| DNO
|| M-DNO Type 3 MCAD
|| STP
|| CAD
|| 3/21/24
|| Brian Aspnes
|| [https://drive.google.com/file/d/1wRYghUkow1BJdRwUwAGVVobd6LQv6geO/view?usp=drive_link Link]
|| Type 3 CAD File
|-
| SDNO
|| M-SDNO Class “A” Zip CAD Files Rev 0.7
|| STP
|| CAD
|| 1/22/24
|| Brian Aspnes
|| [https://drive.google.com/file/d/1YK6dtS7hfkoRNrOTrXJRE0VsqW3xeBiz/view?usp=drive_link Link]
|| Includes A305, A335, and A555.
|-
| SDNO
|| M-SDNO Class “B” Zip CAD Files Rev 0.7
|| STP
|| CAD
|| 1/22/24
|| Brian Aspnes
|| [https://drive.google.com/file/d/1Lcxi2ek6lwPF4L4AoLH5ENmUjqerhs09/view?usp=drive_link Link]
|| Includes B305, B335, and B555.
|-
| SDNO
|| M-SDNO Class “C” Zip CAD Files Rev 0.7
|| STP
|| CAD
|| 1/22/24
|| Brian Aspnes
|| [https://drive.google.com/file/d/1gXnDVPRMuXOKsCsW6TjHRCG_2RvDti7R/view?usp=drive_link Link]
|| Includes C305, C335, and C555.
|-
| SDNO
|| M-SDNO Class “D” Zip CAD Files Rev 0.7
|| STP
|| CAD
|| 1/22/24
|| Brian Aspnes
|| [https://drive.google.com/file/d/1bB_Jk939M0OZpMj9ePU82H68_ea_sjNu/view?usp=drive_link Link]
|| Includes D305, D335, and D555.
|-
| FLW
|| T1 FLW
|| STP
|| CAD
|| 5/23/2023
|| Brian Aspnes
|| [https://drive.google.com/file/d/16ZMUqJWoGE5SZ-iKAvZAybNZVoor5zLM/view?usp=drive_link Link]
|| &nbsp;
|-
| DNO
|| DNO Type 4 MCAD
|| STP
|| CAD
|| 2/15/23
|| Mike Gregoire
|| [https://drive.google.com/file/d/14qGvxn2yb_iIW25NvAWaxmJeY1mm0orJ/view?usp=drive_link DNO Type 4 Link]
|| Type 4 CAD
|-
| DNO
|| DNO Type 2 MCAD
|| STP
|| CAD
|| 10/26/22
|| Mike Gregoire
|| [https://drive.google.com/file/d/1K5K6Jx3eTGSqCjOwvBfuCg3Lbh0Qs1IE/view?usp=drive_link Link]
|| Type 2 CAD Files
|}


OCP Presentation Template - please contact [mailto:michael@opencompute.org Michael Schill] for a copy
===DC-MHS Tools===


{| class="wikitable" style="width: 100%; margin:auto"
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
|-
! Type !! Description !! Version !! Submit Date !! Contributor !! License !! Notes
! Spec. Impacted !! Name !! Format !! Version !! Submit Date !! Contributor !! style="min-width:125px;"| Link !! Notes
|-
| CRPS
|| make_mcrps_config_file
|| Source Code
|| 1.0
|| 7/26/2023
|| Aurelio Rodriguez Echevarria
|| [https://drive.google.com/drive/folders/1P3xTMK8sU_SXSGOf31iL6EpQ3nBpV-Wy Folder Link]<br>[https://drive.google.com/file/d/1ErNoBnIhlriR7gHBR6SBPyOgqAv6ASBc/view?usp=drive_link]
|| M-CRPS Configuration file make tool, use CodeBlocks and GCC to compile the project. First release it only generates a .bin file from the header and the configuration area.
|}
 
 
===Errata and Supporting Documentation===
 
This section includes Errata and ECNs that have not been moved into a public spec release yet (these files supersede anything in the current released specs).
 
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Spec. Impacted !! Name !! Format !! Version !! Submit Date !! Contributor !! Link !! Notes
|-
| M-CRPS
|| M-CRPS Design Specification Errata Rev. 1
|| Document
|| 1
|| 3/18/2024
|| Aurelio Rodriguez-Echevarria
|| [https://drive.google.com/file/d/1IMqIbVPBp04wYww513Jb7cArW7S1jkvw/view?usp=drive_link Link]
|| Clarified OCWPL1 definition.
|-
|-
| &nbsp; || &nbsp; || &nbsp; || &nbsp; || &nbsp; || &nbsp; || &nbsp;
| SDNO/FLW/DNO
|| M-HPM 1033 Errata Document
|| Document
|| 1
|| 2/21/2024
|| Mike Gregoire
|| [https://drive.google.com/file/d/1WWJtX3iHG6bNhtzFFu9qO3Yl7s7IQaKT/view?usp=drive_link Link]
|| Corrected datum references when dimensioning 1033 riser locations which do not align with the released SFF-TA-1033 V1.0.
|-
|-
| &nbsp; || &nbsp; || &nbsp; || &nbsp; || &nbsp; || &nbsp; || &nbsp;
| PIC
|| Current Connector List
|| Document
|| 1
|| 2/1/2023
|| Cliff DuBay
|| [https://docs.google.com/spreadsheets/d/1Vq_JxzZ43ysxBNHJ928vnzIcshA95GYGocaKmJCBC80/edit?usp=share_link Link]
|| M-PIC Connector List
|}
|}


===Inactive Documents===
This section includes Workstream specification errata and any other working documents.
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Spec Impacted !! Name !! Format !! Version !! Submit Date !! Contributor !! style="min-width:100px;"| Link !! Notes
|-
| PIC
|| M_PIC_R1_V1.03_Errata
|| PDF
|| 1.03
|| 2/1/2024
|| Cliff DuBay
|| [https://drive.google.com/file/d/1A2SoAb48K-w4r1GB7MPycEJQw6aBcfJY/view?usp=drive_link Link]
|| Errata # 1: Update the description and requirements for the FULL_PWR_CYCLE_N/FLEXIO pin to avoid power-up failures.
|-
| CRPS
|| M-CRPS Base Specification
|| PDF
|| 1.03 RC2
|| 12/15/23
|| Aurelio Rodriguez Echevarria
|| [https://drive.google.com/file/d/1-NDJ2bq-xiWrxVvanxt9uA4Q7OfphwhY/view?usp=drive_link 1.03 RC2 Link]
[https://drive.google.com/file/d/1ErNoBnIhlriR7gHBR6SBPyOgqAv6ASBc/view?usp=drive_link Mech Dwg]
|| Update:
*Multiple updates to many sections
*Updated pictures and figures
*Fixed typos
|-
| SNDO
|| M-SDNO Base Specification
|| PDF
|| 0.5
|| 10/2/2023
|| Brian Aspnes
|| [https://drive.google.com/file/d/1knfzOzEaBEFQ2PnkikmT_P5IlnUefwrC/view?usp=drive_link 0.5 Link]
|| Replaces the (Directional) M-DNO Specification Updates for HPM Types 5-7 0p3 RC2.pdf specification.
|-
| SDNO
|| M-SDNO Class “A” Zip CAD Files
|| STP
|| 0.5
|| 10/2/23
|| Brian Aspnes
|| [https://drive.google.com/file/d/1mXoZBWNi3bZmQ-TabuIY_5Ddz0VR-bw-/view?usp=drive_link Link]
|| Includes A305, A335, and A555.
|-
| SDNO
|| M-SDNO Class “B” Zip CAD Files
|| STP
|| 0.5
|| 10/2/23
|| Brian Aspnes
|| [https://drive.google.com/file/d/1xwR4cHkuRo5g7l7VrRAfnOIHHze1fc6b/view?usp=drive_link Link]
|| Includes B305, B335, and B555.
|-
| SDNO
|| M-SDNO Class “D” Zip CAD Files
|| STP
|| 0.5
|| 10/2/23
|| Brian Aspnes
|| [https://drive.google.com/file/d/1SQt9graR8BZC2beBFljTg-YPAMTXnOuQ/view?usp=drive_link Link]
|| Includes D305, D335, and D555.
|-
| PIC
|| M-PIC Base Specification
|| PDF
|| 1.03
|| 9/28/2023
|| Cliff DuBay
|| [https://drive.google.com/file/d/1bIsjQoUAiK4oVtwBkSNTldoJAIC1LpI3/view?usp=drive_link 1.03 Link (non CB Version)]<br>
[https://drive.google.com/file/d/13Vh0dFjW88jCZozOGR0XmAJ4674BC5hr/view?usp=drive_link 1.03 Link (CB version)]
|| Update:
*SGPIO and PDB Management RFU
*Cable Optimized boot connector rating & power control
*I3C recommendations
*SB - signal termination
|-
| CRPS
|| M-CRPS Base Specification
|| PDF
|| 1.02 RC2
|| 8/23/2023
|| Aurelio Rodriguez Echevarria
|| [https://drive.google.com/file/d/1bhVL_XdduqiLCJB_D0tLynhOPv_1tT_9/view?usp=drive_link 1.02 RC2 Link]<br>
[https://drive.google.com/file/d/1uWUb1oxCnsd8voB4xLvJqcDNmuMujKgu/view?usp=drive_link 1.02 RC2 Mechanical Drawings]
|| Update:
*Multiple updates to many sections
*Updated pictures and figures
|-
| M-DNO
|| M-DNO Base Specification
|| PDF
|| 1.01 RC2
|| 7/20/23
|| Mike Gregoire
|| [https://drive.google.com/file/d/1CKY8mDWPAh4oDrJETX-KkbiB9LJVoTAe/view?usp=drive_link 1.01 RC2 Link (non CB Version)]<br>
[https://drive.google.com/file/d/177Dsa-76x246txEPcyPvj4Erq2jsxyod/view?usp=drive_link 1.01 RC2 Link (CB version)]
|| Updates:
*Updated tables, link1.01 RC2 Link (non CB Versions, pictures)
|-
| (Directional) M-DNO Types 5-7 0p3 RC2
|| Updated CAD Files for Type 7
|| STP
|| 1.0
|| 6/1/23
|| Andrew Junkins
|| [https://drive.google.com/file/d/1LhOi4WgXdm6WWViCzgCHzlIAPmN_OXSA/view?usp=drive_link Link]
|| Type 7 CAD Files - updated to match M-DNO v0.3 RC2 specification
|-
| (Directional) M-DNO Types 5-7 0p3 RC2
|| Updated CAD Files for Type 6
|| STP
|| 1.0
|| 5/16/23
|| Brian Aspnes
|| [https://drive.google.com/file/d/1ql33NOGWQbUcXz96ZjfHcMH3Gjcogv5d/view?usp=drive_link Link]
|| Type 6 CAD Files
|-
| (Directional) M-DNO Types 5-7 0p3 RC2
|| Updated CAD Files for Type 5
|| STP
|| 1.0
|| 5/16/23
|| Brian Aspnes
|| [https://drive.google.com/file/d/1KmtxRLk7OhZWZJW9RsrvcN80Edr-lecy/view?usp=drive_link Link]
|| Type 5 CAD Files
|-
| (Directional) M-DNO Specification Updates for HPM Types 5-7 0p3 RC2
|| M-DNO Base Specification
|| PDF
|| v0.3 RC2
|| 5/16/23
|| Mike Gregoire
|| [https://drive.google.com/file/d/1MlVSquZywrB2Ht8sUjN9oKuhzRTB3Qk2/view?usp=drive_link 0.3 Link]
|| (Directional) M-DNO Specification Updates for HPM Types 5-7
|-
| SIF
|| M-SIF Base Specification
|| PDF
|| 0.3
|| 3/29/2023
|| Dirk Blevins
|| [https://drive.google.com/file/d/1Vz4n4rM4kYJPuW_WnjHzdH8HNcWl6voe/view?usp=share_link Link]
|| Early version (0.3) of the M-SIF specification
|-
| XIO
|| M-XIO Base Specification
|| PDF
|| 1.02
|| 3/16/2023
|| Javier Lasa
|| [https://drive.google.com/file/d/1LwFzpmi6nROouWC2Bw_Vz-JfJUK57Ae2/view?usp=share_link Version 1.02]<br>[https://drive.google.com/file/d/17ZpGByoswdDBp9Z8v3j0AA9lT7Ba_Y5S/view?usp=share_link Link]
|| Update:
*Version 1.02 of the Specification with the Change Bar.
*Added a compliance table.
|-
| PIC
|| M-PIC Base Specification
|| PDF
|| 1.02
|| 3/13/2023
|| Clifford DuBay
|| [https://drive.google.com/file/d/17Va-5lXufEZodzFWQOwEDPa0-pr5WSlS/view?usp=share_link Version 1.02]<br>[https://drive.google.com/file/d/1HdTkflKge0QI6maCi3svl0PIRYKpFO_X/view?usp=share_link Link]
|| Update:
*Version 1.02 of the Specification with the Change Bar.
*Improved compliance requirement visibility, clarified OR-ing requirement for +12V sources, & added contributors.
|-
| CRPS
|| M-CRPS Base Specification
|| PDF
|| 1.01 RC2
|| 7/26/2023
|| Aurelio Rodriguez Echevarria
|| [https://drive.google.com/file/d/1zAL49A9970CZxXDfSWWHKmi8PyvYEhDG/view?usp=drive_link 1.01 RC2 Link]<br>[https://drive.google.com/file/d/1Vny_1d-e0IPqeJfheH_UlrXQL_BPkrAk/view?usp=drive_link 1.01 RC2 Mechanical Drawings]
|| Update:
*Integrated Errata
*Updated pictures and figures
|-
| CRPS
|| Errata
|| PDF
|| RC4 Rev 2
|| 4/25/23
|| Aurelio Rodriguez Echevarria
|| [https://drive.google.com/file/d/11xGUx2Y1qKkcuwK4owVBix8py7_katcV/view?usp=share_link Link]
|| Corrections in Rev 1.0 RC4 of the M-CRPS specification.
|-
| CRPS
|| Errata
|| PDF
|| RC4 Rev 1
|| 4/3/2023
|| Aurelio Rodriguez Echevarria
|| [https://drive.google.com/file/d/1TbUu4meHdnnJZ3VtSiy7sON2URYX73kY/view?usp=share_link Link]
|| Fixes typos and drawing errors.
|-
| PIC
|| M-PIC Base Specification
|| PDF
|| 1.01
|| 2/3/2023
|| Clifford DuBay
|| [https://drive.google.com/file/d/1JTDvOGOuTnFZjFgp2Ae2lebFZZCmnArc/view?usp=share_link Version 1.01]<br>[https://drive.google.com/file/d/1d2LHGnvyiBcQVCc1_lTO6Xo1WWYi_2Ml/view?usp=share_link Change Bar]
||
*Version 1.01 of the Specification with the Change Bar.
*Update Figures and Tables, add Errata content, include Hot Plug information.
|-
| PIC
|| M-PIC Errata 1 and 2
|| PDF
|| 1.0
|| 2/1/2023
|| Clifford DuBay
|| [https://drive.google.com/file/d/13G_x8I4XgwV9m6fb38sI1k9zKxfISlQs/view?usp=share_link Link]
||
*Errata 1:  Update Section 9.1 to Avoid High Current in Partial-Mate Conditions
*Errata 2: Update Section 9.1.7.6 to increase the Power Rating from 1080W to 2000W.
|-
| XIO
|| M-XIO Base Specification
|| PDF
|| 1.01 RC1
|| 1/24/2023
|| Javier Lasa
|| [https://drive.google.com/file/d/1NFDrByIIVKE3YpOkHtfXi1FYPeEKxVnQ/view?usp=share_link Link]
|| Incorporated Errata #1. ECN: Addition of cable construction considerations, incorporated cable considerations (alignment with PCI-SIG internal cable spec), clarification on P3V3_MGMT usage.
|-
| XIO
|| Errata
|| PDF
|| 1.0
|| 12/12/2022
|| Javier Lasa
|| [https://drive.google.com/file/d/1a-9o3YmJcMONEz7uQpqaBw7l8q_OJE2l/view?usp=sharing Link]
|| Update SFF-TA-1016 and SFF-TA-1033 pinouts.
|-
| DNO
|| M-DNO Type 3 CAD Files
|| STP
|| 1
|| 10/26/22
|| Mike Gregoire
|| [https://drive.google.com/file/d/1KwNNY5aDE_D0qRqW3V-29n_vVyMT5s77/view?usp=drive_link Link]
|| Type 3 CAD Files
|-
| XIO
|| M-XIO Specification
|| PDF
|| 1.0 RC4
|| 9/28/2022
|| Javier Lasa
|| [https://www.opencompute.org/documents/m-xio-r1-v1p0-rc4-pdf Link]
|| Reviewed in Oct meeting. Approved by the IC on 11/4/2022
|-
| PESTI
|| M-PESTI Specification
|| PDF
|| 1.0 RC2
|| 9/28/2022
|| Javier Lasa
|| [https://www.opencompute.org/documents/m-pesti-r1-v1p0-rc2-pdf Link]
|| Reviewed in Oct meeting. Approved by the IC on 11/4/2022
|-
| DNO
|| M-DNO
|| PDF
|| 1.0 RC5
|| 9/28/22
|| Michael Gregoire
|| [https://www.opencompute.org/documents/m-dno-r1-v1p0-rc5-pdf Link]
|| Reviewed in Oct meeting. Approved by the IC on 11/4/2022
|-
| FLW
|| M-FLW Specification
|| PDF
|| 1.0 RC5
|| 9/28/2022
|| Corey Hartman
|| [https://www.opencompute.org/documents/m-flw-r1-v1p0-rc5-pdf Link]
|| Reviewed in Oct meeting. Approved by the IC on 11/4/2022
|-
| CRPS
|| M-CRPS Specification
|| PDF
|| 1.0 RC4
|| 9/28/22
|| Aurelio Rodriguez Echevarria
|| [https://www.opencompute.org/documents/m-crps-r1-v1p0-rc4-pdf Link]
|| Reviewed in Oct meeting. Approved by the IC on 11/4/2022
|-
| PIC
|| M-PIC Specification
|| PDF
|| 1.0 RC7
|| 9/28/2022
|| Clifford DuBay
|| [https://www.opencompute.org/documents/m-pic-r1-v1p0-rc7-pdf Link]
|| Reviewed in Oct meeting. Approved by the IC on 11/4/2022
|}


==Get Involved==
==Get Involved==
*[mailto:dcmhs@opencompute.org Mailing List]
*[mailto:dcmhs@opencompute.org Mailing List]
*[https://www.opencompute.org/projects/server OCP Calendar]
*[https://www.opencompute.org/projects/server OCP Server Project Calendar]
 
 
==Communication==
*Project communication is done through [https://ocp-all.groups.io/g/OCP-DC-MHS https://ocp-all.groups.io/g/OCP-DC-MHS]
*Post: [mailto:OCP-DC-MHS@OCP-All.groups.io OCP-DC-MHS@OCP-All.groups.io]
*Subscribe: [mailto:OCP-DC-MHS+subscribe@OCP-All.groups.io OCP-DC-MHS+subscribe@OCP-All.groups.io]
*Unsubscribe: [mailto:OCP-DC-MHS+unsubscribe@OCP-All.groups.io OCP-DC-MHS+unsubscribe@OCP-All.groups.io]
*''Please make sure to follow the steps until you receive 1) confirmation email from noreply@Groups.io 2) welcome email from [mailto:OCP-DC-MHS@OCP-All.groups.io OCP-DC-MHS@OCP-All.groups.io]''
*''Please check your junk box and unblock noreply@Groups.io if you have trouble receiving the confirmation email''
*To access the mailing list archives go to [https://ocp-all.groups.io/g/OCP-DC-MHS https://ocp-all.groups.io/g/OCP-DC-MHS]




==Meeting Schedule==
==Meeting Schedule==


For public meetings:
For monthly public meetings:
*Schedule is TBD
*Schedule is the third Wednesday of every month at 0800 PST.
*Each workstream has its own weekly meeting for companies that have signed the DC-MHS R1 CLA.
*[https://www.opencompute.org/projects/dc-mhs OCP DC-MHS Project Calendar]


Each workstream has its own weekly meeting. Only members in the workstream will receive the meeting invitation:
*Related info to be sent to each workstream mailing list.


==Recordings from Past Monthly Meeting Calls==


==Slides from April 2022 OCP Tech Talks==
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Presenter (Company) !! Title !! Recording !! Slides
|-
| DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Charlie Ziegler, Cliff DuBay, Aurelio Rodriguez Echevarria, Greg Sellman, Dirk Blevins)
|| March 2024 Public Call
|| [https://drive.google.com/file/d/1owOS9UdFas8b4Yz4E0bK5W5HnWdEA-jB/view?usp=drive_link Recording]
|| [https://drive.google.com/file/d/1bQ7md1AIsPk4Q6qyYqgtSE3F-jCKYuda/view?usp=drive_link Slides]
|-
| DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Corey Hartman, Dirk Blevins)
|| February 2024 Public Call
|| [https://drive.google.com/file/d/157Bbu5_L_BKLpbxVFF_zkk6lpoMeco0a/view?usp=drive_link Recording]
|| [https://drive.google.com/file/d/1dI4nksIhb3sdh237vasoEK4l9EZSNXtk/view?usp=drive_link Slides]
|-
| DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Greg Sellman, Dirk Blevins)
|| January 2024 Public Call
|| [https://drive.google.com/file/d/1gCMNzgiKoI1oi1N4L9np8dId6Q_qLWGP/view?usp=drive_link Recording]
|| [https://docs.google.com/presentation/d/17lFHNW9Jn1m6sKj6NddHnLLWehTNMKfl/edit?usp=drive_link&ouid=107990764505043211297&rtpof=true&sd=true Slides]
|-
| DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Greg Sellman)
|| September 2023 Public Call
|| [https://opencompute-org.zoom.us/rec/share/JYTzuAmuxq8no5wjlqhziI4ZJbhBiYrJi496d0iMy3m6EgVVc7JU8IDmZ_YJgrFT.gYurp8y9FMTuLFs0?pwd=hzl4KctkXQOSbmUSyY8RJPHd3CX8YcCY Recording]
|| [https://docs.google.com/presentation/d/11NbaSYqCpp5JSzETKGdIVI6O5BOUoMJn/edit?usp=drive_link&ouid=107990764505043211297&rtpof=true&sd=true Slides]
|-
| DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Greg Sellman)
|| August 2023 Public Call
|| [https://drive.google.com/file/d/1f2G-wPxbUzF9CYmwiWW55OjmdjufmfU9/view?usp=drive_link Recording]
|| [https://docs.google.com/presentation/d/1AVykn8LTIV3yEAnrJ9YOR5M-BmkZTaM-/edit?usp=drive_link&ouid=107990764505043211297&rtpof=true&sd=true Slides]
|-
| DC-MHS HPM Workstream Updates (Brian Aspnes, Mike Gregoire, Javier Lasa, Aurelio Rodriguez Echevarria, Greg Sellman)  Includes earlier OCP information on the Contribution Process for reference.
|| July 2023 Public Call
|| [https://drive.google.com/file/d/113BwD1qgC8LxZ_KjrEDdtYDI4h4Vp3io/view?usp=drive_link Recording]
|| [https://docs.google.com/presentation/d/1M80W1uVUUhSvOTQXzVnX7xo0gFiimoU4/edit?usp=drive_link&ouid=107990764505043211297&rtpof=true&sd=true Slides]<br>[https://drive.google.com/file/d/1RCTSd8Tw5qXI1-tDRea5gaGA_Xq40qIh/view?usp=drive_link OCP Contribution Process]
|-
| DC-MHS HPM Workstream Updates (Brian Aspnes, Andy Junkins, Aurelio Rodriguez Echevarria)
|| June 2023 Public Call
|| [https://drive.google.com/file/d/1TsCkuiaoJ7qhWvlFONBeN6tdLk2MBUQW/view?usp=drive_link Recording]
|| [https://docs.google.com/presentation/d/1pbCRW7_lhNeoNCt9LjwUtzb8ziqEV7k5/edit?usp=drive_link&ouid=107990764505043211297&rtpof=true&sd=true Slides]
|-
| DC-MHS HPM Workstream Updates and New Spec (Corey Hartman, Mike Gregoire, Aurelio Rodriguez Echevarria)
|| May 2023 Public Call HPM WS Update
|| [https://drive.google.com/file/d/1cVnNiP4rMqr8D0J6TkyvtB801_IUs7bS/view?usp=share_link Recording]
|| [https://drive.google.com/file/d/1rxJn1BUSmjwm0W89YouCRnleFxe0kRaZ/view?usp=share_link HPM WS Update]
[https://drive.google.com/file/d/1ld3Ew7-PrTmisZM85aJGpLKcb8M_tJfN/view?usp=share_link New HPM Spec]
|-
| DC-MHS HPM Workstream Update (Corey Hartman, Mike Gregoire) and Delta and Artesyn Representatives
|| April 2023 Public Call
|| [https://drive.google.com/file/d/1vdn8yE5YHHGRt-uCjD8lMUEghPcQvtpv/view?usp=share_link Recording]
|| [https://drive.google.com/file/d/1sI8byekDQvkL4jilFuJ1O_9T32sD56C2/view?usp=share_link HPM WS Update]<br>
[https://drive.google.com/file/d/1HruPfHrGBjJiNwZcxbA1_wtU4afra-1l/view?usp=share_link Artesyn Presentation]
|-
| DC-MHS Workstream and Subproject Leads
|| March 2023 Public Call
|| [https://drive.google.com/file/d/1HMjO4TsFTw04wltFQUaiUjsSsspvb_w3/view?usp=share_link Recording]
|| [https://docs.google.com/presentation/d/1PUfREdEHktxyDaP5mk85Ddvw-3Nn12Sd/edit?usp=share_link&ouid=107990764505043211297&rtpof=true&sd=true Slides]
|}
 
==Slides/Recordings from October 2023 OCP Global Summit==
 
There were a number of DC-MHS Technical Talks and Experience Center Lightning Talks at the October 2023 OCP Global Summit in San Jose. The presentations and recordings are posted below.


{| class="wikitable" style="width: 100%; margin:auto"
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
|-
! Presenters (Company) !! Title !! Slides
! Presenter (Company) !! Title !! Recording !! Slides
|-
|-
| Shawn Dube (Dell), Brian Aspnes (Intel) || DC-MHS Rev 1.0: Introduction and Overview (Datacenter - Modular Hardware System) || [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/e98e04e8ce8f9f0078d2cd7c745b6e98f1238f67.pdf Slides]
| Paul Artman (AMD)<br>Dirk Blevins (Intel)<br>Rob Nance (Jabil)
|| Design with DC-MHS
|| [https://www.youtube.com/watch?v=tF35xYNFcIA Video]
|| [https://drive.google.com/file/d/1P44OmctBl9QS_xKgXQOKAoXB8iB0H5yp/view?usp=drive_link Slides]
|-
|-
| Corey Hartman (Dell), Brian Aspnes (Intel) || DC-MHS: FulL Width HPMs (M-FLW) || [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/d13d08ff84261b0e615f309507ccedb457cf2180.pdf Slides]
| Dirk Blevins (Intel)<br>Shawn Dube (Dell)<br>Vincent Nguyen (HPE)
|| Edge-MHS – Bringing Modular Hardware System to the Edge
|| [https://www.youtube.com/watch?v=tiatPvB0kTA Video]
|| [https://drive.google.com/file/d/1ulhZW1rg0wLHTcM_U_aElt_vuQeZw9kP/view?usp=drive_link Slides]
|-
|-
| Mike Gregoire (Dell), Dirk Blevins (Intel) || DC-MHS: DeNsity Optimized HPMs (M-DNO) || [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/748b3531aaa728a59bdab6372c6d234c7989d894.pdf Slides]
| Cliff DuBay (Intel)<br>Shawn Dube (Dell)
|| DC-MHS - 48V Support
|| [https://www.youtube.com/watch?v=PbmtSUS_VrY Video]
|| [https://drive.google.com/file/d/1b3Lep66gPOQF0iccXRriXFcWsiV9N5EM/view?usp=drive_link Slides]
|-
|-
| Cliff DuBay (Intel), Tim Lambert (Dell) || DC-MHS: Peripheral Infrastructure Connectivity (M-PIC) || [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/522e38defb48eed767321515e27f5492c54f4071.pdf Slides]
| Tim Lambert (Dell)<br>Javier Lasa (Intel)<br>Phillip Leech (HPE)
|| DC-MHS's Road to Off-the-shelf/Interchangeable HPMs
|| [https://www.youtube.com/watch?v=MtpGeSnjjqg Video]
|| [https://drive.google.com/file/d/16yKSuVz6R7alS7_3vo7TYulVhHL4MsgL/view?usp=drive_link Slides]
|-
|-
| Charlie Ziegler (Dell), Javier Lasa (Intel) || DC-MHS: eXtensible I/O (M-XIO) || [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/6f2310a616532099b19677b52ba594312cb5059f.pdf Slides]
| Michael Gregoire (Dell)<br>Brian Aspnes (Intel)<br>Corey Hartman (Dell)<br>Matt Bowman (Meta)<br>Andrew Junkins (AMD)
|| Panel - DC-MHS: Updates and New Form Factors from the M-HPM Team
|| [https://www.youtube.com/watch?v=Y3XpGSI6q8Y Video]
|| [https://drive.google.com/file/d/17efYJgbEatWiZS00Ba9S1tlq87Kj62_T/view?usp=drive_link Slides]
|-
|-
| Tim Lambert (Dell), Javier Lasa (Intel) || DC-MHS: PEripheral Sideband Tunneling Interface (M-PESTI) || [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/19a4b08cbe94c96c55a81a8138841768765d5a32.pdf Slides]
| Gregory D Sellman (AMD)<br>Dirk Blevins (Intel)<br>Damien Chong (Meta)
|| DC-MHS Modular Shared Infrastructure (M-SIF) - Comprehending Multi-Node/Host
|| [https://www.youtube.com/watch?v=dWHF6-88Rh8 Video]
|| [https://drive.google.com/file/d/1CeP6nnnA9dRHFEsd22UZQGBAgqYT7NIu/view?usp=drive_link Slides]
|-
|-
| Aurelio Rodriguez (Intel), Jon Lewis (Dell) || DC-MHS: Common Redundant Power Supply (M-CRPS) || [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/7dcd4a42fafc61adf22802577208a2404dd1c175.pdf Slides]
| Tim Lambert (Dell)<br>Mike Witkowski (HPE)<br>Todd Rosedahl (IBM)<br>Javier Lasa (Intel)
|| DC-MHS: Peripheral Out-of-Band Management Evolution
|| [https://www.youtube.com/watch?v=LF_8JZ1UKAs Video]
|| [https://drive.google.com/file/d/15HI6QgYAcsrrYav1oWO0Z67OL2s5pEJh/view?usp=drive_link Slides]
|-
| Jeff Kennedy (Dell)<br>Javier Lasa (Intel)<br>Eduardo Estrada (Intel)
|| DC-MHS, M-PESTI: What, Why and When to Use It.
|| [https://www.youtube.com/watch?v=X4WUI2kifdI Video]
|| [https://drive.google.com/file/d/1URTFmr6COYueVBcEzfuxig84w7bMx_1H/view?usp=drive_link Slides]
|-
| Aurelio Rodriguez Echevarria (Intel)
|| DC-MHS: M-CRPS base specification and test setup updates
|| [https://www.youtube.com/watch?v=8in9VhnLkrw Video]
|| [https://drive.google.com/file/d/1C2kcC-kDv5q4-oiAum38Nd8fPtO9Qg8t/view?usp=drive_link Slides]
|-
| Chitrak Gupta (AMI)<br>Justin Thaler (Jabil)
|| Enabling DC-MHS Design for Future Datacenters with Dynamic Firmware
|| [https://www.youtube.com/watch?v=98ZuB9FgotM Video]
|| [https://drive.google.com/file/d/13tG54UNQjiojV3ncMkXiML72Mv2shhrJ/view?usp=drive_link Slides]
|-
| Munir Ahmad (Lattice)<br>Lawrence Lo (Intel)<br>Raghu Kondapalli (Axiado)
|| Driving DC-SCM innovations and interoperability - presented by DC-MHS
|| [https://www.youtube.com/watch?v=U_ttxtNY6C4 Video]
|| [https://drive.google.com/file/d/1NkQIUC2FUbyV9PspiHZbgGwxj_K0pE3P/view?usp=drive_link Slides]
|-
|| Richard Caubang (Advanced Energy)<br>Austen Cook (Jabil)<br>Rob Nance (Jabil)<br>Aurelio Rodriguez Echevarria (Intel)
|| Cross Vendor Interoperability in Server Design and M-CRPS/Test board Demonstration Speakers - presented by DC-MHS
|| [https://www.youtube.com/watch?v=Qr6rb5_b4NA Video]
|| [https://drive.google.com/file/d/1iI-91bOFzT9ozsfpyTpKWpxrcpGDCafH/view?usp=drive_link Slides]
|}
 
 
==Slides/Recordings from April 2023 OCP Regional Summit==
 
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Presenter (Company) !! Title !! Recording !! Slides
|-
| Dirk Blevins (Intel)<br>Paul Artman (AMD)<br>Rob Nance (Jabil)
|| Data Center Modular Hardware System (DC-MHS) Overview & Update
|| [https://www.youtube.com/watch?v=m7cotny5Cyw Video]
|| [https://drive.google.com/file/d/1Rc-P6MNF5qgysw7NsraKTmTO4MmrAQr3/view?usp=share_link Slides]
|}
|}


Line 115: Line 768:
==Slides/Recordings from October 2022 OCP Global Summit==
==Slides/Recordings from October 2022 OCP Global Summit==


{| class="wikitable" style="width: 100%; margin:auto"
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Presenter (Company) !! Title !! Recording !! Slides
|-
| Michael Leung (Google)<br>Aurelio Rodriguez Echevarria (Intel)<br>Corey Hartman (Dell)<br>Tim Lambert (Dell)<br>Eduardo Estrada (Intel)
|| PANEL: DC-MHS R1 report-out and timeline
|| [https://www.youtube.com/watch?v=-6gmxZiKvEI Recording]
|| [https://drive.google.com/file/d/1ULofl4GqkfYI6bT73v55ureIPLBTvoNJ/view?usp=sharing Slides]
|-
| Siamak Tavallaei (Google)<br>Brian Aspnes (Intel)<br>Shawn Dube (Dell)<br>Jean-Marie Verdun (HPE)<br>Dharmesh Jani (Meta)
|| PANEL: Datacenter Modular Hardware System (DC-MHS)
|| [https://www.youtube.com/watch?v=HdGQsbUqKow Recording]
|| [https://drive.google.com/file/d/1XiM59aLnK9A8PP7W2gFfG7SQeuPZBlIz/view?usp=sharing Slides]
|-
| Dirk Blevins (Intel)<br>Todd Westhauser (Meta)<br>Vincent Nguyen (HPE)
|| Practical Usage of DC-MHS M-DNO Concepts
|| [https://www.youtube.com/watch?v=2qLueMd6n4A Recording]
|| [https://drive.google.com/file/d/1PiSaLUQjrqoMdrznDWIMbGqB4xRA_xy_/view?usp=sharing Slides]
|-
| Siamak Tavallaei (Google)<br>Dirk Blevins (Intel)
|| Multi-host Modular Systems (M-SIF)
|| [https://www.youtube.com/watch?v=0HHNIni0_H0 Recording]
|| [https://drive.google.com/file/d/1-I4SifOo4J53uBRPTNi_lsiqxIkQwuNy/view?usp=sharing Slides]
|}
 
 
==Slides/Recordings from April 2022 OCP Tech Talks==
 
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
|-
! Title !! Presenter !! Video !! Slides
! Presenter (Company) !! Title !! Recording !! Slides
|-
|-
| PANEL: DC-MHS R1 report-out and timeline || Michael Leung (Google) | Aurelio Rodriguez Echevarria (Intel Corporation) | Corey Hartman (Dell) | Tim Lambert (Dell Inc.) | Eduardo Estrada (Intel Corporation) || [https://www.youtube.com/watch?v=-6gmxZiKvEI Video] || [https://drive.google.com/file/d/1ULofl4GqkfYI6bT73v55ureIPLBTvoNJ/view?usp=sharing Slides]
| Shawn Dube (Dell)<br>Brian Aspnes (Intel)
|| DC-MHS Rev 1.0: Introduction and Overview (Datacenter - Modular Hardware System)
|| [https://www.youtube.com/watch?v=Vy1h5sXVmQA Recording]
|| [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/e98e04e8ce8f9f0078d2cd7c745b6e98f1238f67.pdf Slides]
|-
|-
| PANEL: Datacenter Modular Hardware System (DC-MHS) || Siamak Tavallaei (Google) | Brian Aspnes (Intel Corporation) | Shawn Dube (Dell) | Jean-Marie Verdun (HPE) | Dharmesh Jani (Meta) || [https://www.youtube.com/watch?v=HdGQsbUqKow Video] || [https://drive.google.com/file/d/1XiM59aLnK9A8PP7W2gFfG7SQeuPZBlIz/view?usp=sharing Slides]
| Corey Hartman (Dell)<br>Brian Aspnes (Intel)
|| DC-MHS: FulL Width HPMs (M-FLW)
|| [https://www.youtube.com/watch?v=Vy1h5sXVmQA Recording]
|| [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/d13d08ff84261b0e615f309507ccedb457cf2180.pdf Slides]
|-
|-
| Practical Usage of DC-MHS M-DNO Concepts || Dirk Blevins (Intel Corporation) | Todd Westhauser (Meta) | Vincent Nguyen (HPE) || [https://www.youtube.com/watch?v=2qLueMd6n4A Video] || [https://drive.google.com/file/d/1PiSaLUQjrqoMdrznDWIMbGqB4xRA_xy_/view?usp=sharing Slides]
| Mike Gregoire (Dell)<br>Dirk Blevins (Intel)
|| DC-MHS: DeNsity Optimized HPMs (M-DNO)
|| [https://www.youtube.com/watch?v=Vy1h5sXVmQA Recording]
|| [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/748b3531aaa728a59bdab6372c6d234c7989d894.pdf Slides]
|-
|-
| Multi-host Modular Systems || Siamak Tavallaei (Google) | Dirk Blevins (Intel Corporation) || [https://www.youtube.com/watch?v=0HHNIni0_H0 Video] || [https://drive.google.com/file/d/1-I4SifOo4J53uBRPTNi_lsiqxIkQwuNy/view?usp=sharing Slides]
| Cliff DuBay (Intel)<br>Tim Lambert (Dell)
|| DC-MHS: Peripheral Infrastructure Connectivity (M-PIC)
|| [https://www.youtube.com/watch?v=Vy1h5sXVmQA Recording]
|| [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/522e38defb48eed767321515e27f5492c54f4071.pdf Slides]
|-
| Charlie Ziegler (Dell)<br>Javier Lasa (Intel)
|| DC-MHS: eXtensible I/O (M-XIO)
|| [https://www.youtube.com/watch?v=Vy1h5sXVmQA Recording]
|| [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/6f2310a616532099b19677b52ba594312cb5059f.pdf Slides]
|-
| Tim Lambert (Dell)<br>Javier Lasa (Intel)
|| DC-MHS: PEripheral Sideband Tunneling Interface (M-PESTI)
|| [https://www.youtube.com/watch?v=Vy1h5sXVmQA Recording]
|| [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/19a4b08cbe94c96c55a81a8138841768765d5a32.pdf Slides]
|-
| Aurelio Rodriguez (Intel)<br>Jon Lewis (Dell)
|| DC-MHS: Common Redundant Power Supply (M-CRPS)
|| [https://www.youtube.com/watch?v=Vy1h5sXVmQA Recording]
|| [https://146a55aca6f00848c565-a7635525d40ac1c70300198708936b4e.ssl.cf1.rackcdn.com/images/7dcd4a42fafc61adf22802577208a2404dd1c175.pdf Slides]
|}
|}


Line 131: Line 839:
==OCP Marketplace Entries==
==OCP Marketplace Entries==


*TBD
The most recent documents will always be in the OCP Marketplace, Specifications & Design Collateral
*[http://www.opencompute.org/contributions http://www.opencompute.org/contributions]
or the OCP Marketplace, Orderable Products
*[http://www.opencompute.org/products http://www.opencompute.org/products]
Entries below are for ease of use and historical reference. Please use the marketplace links for the most recent documents.
 
{| class="wikitable" style="width: 100%; margin:auto; vertical-align:top; text-align:left;"
|-
! Type !! Description !! Version !! Submit Date !! Contributor !! License !! Notes
|-
| &nbsp;
|| &nbsp;
|| &nbsp;
|| &nbsp;
|| &nbsp;
|| &nbsp;
|| &nbsp;
|}

Latest revision as of 16:20, 21 March 2024

OCP-Open-compute-DC-MHS-icon-3x.png

Welcome[edit]

Welcome to the OCP Data Center – Modular Hardware System (DC-MHS) Sub-Project.

DC-MHS R1 envisions interoperability between key elements of datacenter, edge and enterprise infrastructure by providing consistent interfaces and form factors among modular building blocks.

DC-MHS R1 standardizes a collection of HPM (Host Processor Modules) form-factors and supporting ingredients to allow interoperability of HPMs and platforms.

There are six workstreams that comprise DC-MHS. The objectives of the six workstreams are the following:

  • M-HPM (Host Processor Modules) Workstream which involves three specifications:
    • M-FLW (FulL Width HPM)
      • Specify the requirements of a Full Width Host Processor Module (HPM). This is for use within products designed for minimum 19” rack, also known as compliant with EIA-310-E but can also accommodate larger 21” racks. This form factor enables a full width HPM usage for CPUs, DIMMs, and related features.
    • M-DNO (DeNsity Optimized HPM)
      • Outline the requirements of a family of partial width, DeNsity Optimized Host Processor Module (HPM) form factors within the OCP Modular 240 hardware system group of specifications (M-DNO for short). This M-DNO specification embodies design considerations for CPU, DIMMs, and other server processor related features commonly used by the industry today but is not limited to only those functions.
    • M-SDNO (Modular Hardware System Scalable DeNsity Optimized Specification)
      • Builds upon M-DNO, defines partial and full width HPMs with variable board outlines covering 19” EIA-310 and 21” OpenRack v3 infrastructure.
  • M-XIO/PESTI (eXtended I/O Connectivity/PEripheral SideBand Tunneling Interface)
    • Outline the Modular Extensible I/O (M-XIO) source connector hardware strategy. An M-XIO source connector enables entry and exit points between sources such as Motherboards, Host Processor Modules & RAID Controllers, and peripheral subsystems such as PCIe risers, backplanes, etc. M-XIO includes the connector, high speed and management signal interface details and supported pinouts. Additionally, the workstream defines Interface (M-PESTI) base requirements for electrical and protocol compatibility between components of a DC-MHS platform. The M-PESTI protocol overloads a common PRSNT# signal with additional capabilities beyond simple presence/absence of a peripheral.
  • M-PIC (Platform Infrastructure Connectivity)
    • Defines and standardizes common elements needed to interface a Host Processor Module (HPM) to the platform/chassis infrastructure elements/subsystems within the DC-MHS 1.0 family of OCP servers. Standardization of the common interfaces and connectors enables hardware compatibility between DC-MHS HPMs and various DC-MHS system components.
  • M-CRPS (Common Redundant Power Supply)
    • Defines all the requirements for an M-CRPS internal redundant power supply used in Open Compute Project that could be used in different environments like home/office, datacenter, and high-performance computing, hence harmonizing the server power supply requirements used in the industry with the purpose of creating a standard specification that the customers and vendors of Enterprise and Hyperscale can use for their products.
  • M-SIF (Shared InFrastructure)
    • Improve interoperability related to shared infrastructure enclosures with multiple, serviceable modules. Modules containing elements (HPMs, DC-SCM, peripherals, etc.) are blind-matable and hot-pluggable into a shared infrastructure enclosure.
  • M-PnP (Modular Plug and Play)
    • To ease system firmware and platform enablement integration. Defines interoperability for DC-MHS supporting systems to require and use industry standard processes using accepted algorithms and protocols to discover, manage, secure and maintain systems based on DC-MHS ingredients.


Disclaimer: Please do not submit any confidential information to the Project Community. All presentation materials, proposals, meeting minutes and/or supporting documents are published by OCP and are open to the public in accordance with OCP's Bylaws and IP Policy. This can be found on the OCP Policies page. If you have any questions please contact OCP.

Project Leadership[edit]

Sub-Project Leads[edit]


Spec. Authors[edit]


DC-MHS Wiki Administrator[edit]

Current Status[edit]

DC-MHS R1 v1.0 specs have been approved by the OCP Incubation Committee in November 2022.

DC-MHS workstreams are working the DC-MHS R1 v1.1 specifications. Note: M-SIF is a workstream new to DC-MHS. An early version of the M-SIF specification (version 0.5) is included in the Latest DC-MHS Specification section.

A link to a Readme file explaining how to use the following tables (Latest DC-MHS Specifications, Errata and Supporting Documentation, and Inactive Documents) is here: Link


Latest Released DC-MHS Specifications[edit]

Note: The Final Spec Agreement (FSA) for the latest specs has not yet been signed. You may access the released versions in the Contribution Database (Contribution Database).

Type Description Version Submit Date Contributor Link Notes
Specification M-DNO Base Specification 1.1 RC2 3/21/2024 Mike Gregoire Link (non CB Version)
Link (CB version)
Updates:
  • Completed M-DNO Type 3 length to be consistent with M-SDNO.A555
  • Updated M-DNO to be consistent with M-SDNO
Specification M-PIC Base Specification 48V Addendum 0.3 3/1/2024 Cliff DuBay 0.3 Link (non CB Version)

0.3 Link (CB version)

Updates:

Early directional version (0.3) of the M-PIC Base Specification 48V Addendum. The 48V content is being developed in a separate document with the intent to integrate it into the main M-PIC specification once the content is ready.

Specification M-PIC Base Specification 1.04 3/1/2024 Cliff DuBay 1.04 Link (non CB Version)

1.04 Link (CB version)

Updates:
  • Addressed V1.03 Errata.- Updated FULL_PWR_CYCLE_N/FLEXIO to avoid power-up failures.
  • Updated PICPWR labeling requirements.
  • Updated DC-SCM revisions supported.
  • Simplified/clarified +12VStby "OR-ing", cable construction expectations, control panel SPI, and DC-SCM.
Specification M-CRPS Base Specification 1.04 RC3 2/22/24 Aurelio Rodriguez Echevarria RC3 Link

Mech Dwg

Update:
  • Updated typo in a dimension in the following mechanical drawings.
Specification M-SDNO Base Specification 0.7 RC3 1/29/2024 Brian Aspnes 0.7 Link Major Changes including Class C Definition and Class C/D Primary SCM/NIC moved for common chassis.
Specification M-XIO Base Specification 1.03 11/21/23 Javier Lasa 1.03 Link (non CB Version)

1.03 Link (CB version)

Updates:
  • Version 1.03 of the specification with and without change bar.
  • Changed pull-up from 127Kohm to 100Kohm on FLEXIO / CBL_PRES_PESTI_N topologies.
Specification M-SIF Base Specification 0.5 10/2/2023 Greg Sellman 0.5 Link (non CB Version)

0.5 Link (CB version)

Updates to high-speed IO & management interfaces. Connectors defined.
Specification M-PESTI Base Specification 1.1 RC5 7/18/2023 Jeff Kennedy 1.1 RC5 Link (no change bar)
1.1 RC5 Link (CB Version)
Updates:
  • BAUD accuracy tolerance changed to +/-2%.
  • Overall clarification on the spec, general clean up.
  • Simplified payload headers and source to destination discovery examples.
  • See specification for detailed updates.
Specification M-FLW Base Specification v1.01 RC2 6/1/2023 Brian Aspnes 1.01 RC2 Link
1.01 RC2 Link (CB Version)
  • Fixes for date mismatches and Figure numbers.
  • Change bar version

Latest Released DC-MHS MCAD[edit]

Spec. Impacted Name Format Version Submit Date Contributor Link Notes
DNO M-DNO Type 3 MCAD STP CAD 3/21/24 Brian Aspnes Link Type 3 CAD File
SDNO M-SDNO Class “A” Zip CAD Files Rev 0.7 STP CAD 1/22/24 Brian Aspnes Link Includes A305, A335, and A555.
SDNO M-SDNO Class “B” Zip CAD Files Rev 0.7 STP CAD 1/22/24 Brian Aspnes Link Includes B305, B335, and B555.
SDNO M-SDNO Class “C” Zip CAD Files Rev 0.7 STP CAD 1/22/24 Brian Aspnes Link Includes C305, C335, and C555.
SDNO M-SDNO Class “D” Zip CAD Files Rev 0.7 STP CAD 1/22/24 Brian Aspnes Link Includes D305, D335, and D555.
FLW T1 FLW STP CAD 5/23/2023 Brian Aspnes Link  
DNO DNO Type 4 MCAD STP CAD 2/15/23 Mike Gregoire DNO Type 4 Link Type 4 CAD
DNO DNO Type 2 MCAD STP CAD 10/26/22 Mike Gregoire Link Type 2 CAD Files

DC-MHS Tools[edit]

Spec. Impacted Name Format Version Submit Date Contributor Link Notes
CRPS make_mcrps_config_file Source Code 1.0 7/26/2023 Aurelio Rodriguez Echevarria Folder Link
[1]
M-CRPS Configuration file make tool, use CodeBlocks and GCC to compile the project. First release it only generates a .bin file from the header and the configuration area.


Errata and Supporting Documentation[edit]

This section includes Errata and ECNs that have not been moved into a public spec release yet (these files supersede anything in the current released specs).

Spec. Impacted Name Format Version Submit Date Contributor Link Notes
M-CRPS M-CRPS Design Specification Errata Rev. 1 Document 1 3/18/2024 Aurelio Rodriguez-Echevarria Link Clarified OCWPL1 definition.
SDNO/FLW/DNO M-HPM 1033 Errata Document Document 1 2/21/2024 Mike Gregoire Link Corrected datum references when dimensioning 1033 riser locations which do not align with the released SFF-TA-1033 V1.0.
PIC Current Connector List Document 1 2/1/2023 Cliff DuBay Link M-PIC Connector List

Inactive Documents[edit]

This section includes Workstream specification errata and any other working documents.

Spec Impacted Name Format Version Submit Date Contributor Link Notes
PIC M_PIC_R1_V1.03_Errata PDF 1.03 2/1/2024 Cliff DuBay Link Errata # 1: Update the description and requirements for the FULL_PWR_CYCLE_N/FLEXIO pin to avoid power-up failures.
CRPS M-CRPS Base Specification PDF 1.03 RC2 12/15/23 Aurelio Rodriguez Echevarria 1.03 RC2 Link

Mech Dwg

Update:
  • Multiple updates to many sections
  • Updated pictures and figures
  • Fixed typos
SNDO M-SDNO Base Specification PDF 0.5 10/2/2023 Brian Aspnes 0.5 Link Replaces the (Directional) M-DNO Specification Updates for HPM Types 5-7 0p3 RC2.pdf specification.
SDNO M-SDNO Class “A” Zip CAD Files STP 0.5 10/2/23 Brian Aspnes Link Includes A305, A335, and A555.
SDNO M-SDNO Class “B” Zip CAD Files STP 0.5 10/2/23 Brian Aspnes Link Includes B305, B335, and B555.
SDNO M-SDNO Class “D” Zip CAD Files STP 0.5 10/2/23 Brian Aspnes Link Includes D305, D335, and D555.
PIC M-PIC Base Specification PDF 1.03 9/28/2023 Cliff DuBay 1.03 Link (non CB Version)

1.03 Link (CB version)

Update:
  • SGPIO and PDB Management RFU
  • Cable Optimized boot connector rating & power control
  • I3C recommendations
  • SB - signal termination
CRPS M-CRPS Base Specification PDF 1.02 RC2 8/23/2023 Aurelio Rodriguez Echevarria 1.02 RC2 Link

1.02 RC2 Mechanical Drawings

Update:
  • Multiple updates to many sections
  • Updated pictures and figures
M-DNO M-DNO Base Specification PDF 1.01 RC2 7/20/23 Mike Gregoire 1.01 RC2 Link (non CB Version)

1.01 RC2 Link (CB version)

Updates:
  • Updated tables, link1.01 RC2 Link (non CB Versions, pictures)
(Directional) M-DNO Types 5-7 0p3 RC2 Updated CAD Files for Type 7 STP 1.0 6/1/23 Andrew Junkins Link Type 7 CAD Files - updated to match M-DNO v0.3 RC2 specification
(Directional) M-DNO Types 5-7 0p3 RC2 Updated CAD Files for Type 6 STP 1.0 5/16/23 Brian Aspnes Link Type 6 CAD Files
(Directional) M-DNO Types 5-7 0p3 RC2 Updated CAD Files for Type 5 STP 1.0 5/16/23 Brian Aspnes Link Type 5 CAD Files
(Directional) M-DNO Specification Updates for HPM Types 5-7 0p3 RC2 M-DNO Base Specification PDF v0.3 RC2 5/16/23 Mike Gregoire 0.3 Link (Directional) M-DNO Specification Updates for HPM Types 5-7
SIF M-SIF Base Specification PDF 0.3 3/29/2023 Dirk Blevins Link Early version (0.3) of the M-SIF specification
XIO M-XIO Base Specification PDF 1.02 3/16/2023 Javier Lasa Version 1.02
Link
Update:
  • Version 1.02 of the Specification with the Change Bar.
  • Added a compliance table.
PIC M-PIC Base Specification PDF 1.02 3/13/2023 Clifford DuBay Version 1.02
Link
Update:
  • Version 1.02 of the Specification with the Change Bar.
  • Improved compliance requirement visibility, clarified OR-ing requirement for +12V sources, & added contributors.
CRPS M-CRPS Base Specification PDF 1.01 RC2 7/26/2023 Aurelio Rodriguez Echevarria 1.01 RC2 Link
1.01 RC2 Mechanical Drawings
Update:
  • Integrated Errata
  • Updated pictures and figures
CRPS Errata PDF RC4 Rev 2 4/25/23 Aurelio Rodriguez Echevarria Link Corrections in Rev 1.0 RC4 of the M-CRPS specification.
CRPS Errata PDF RC4 Rev 1 4/3/2023 Aurelio Rodriguez Echevarria Link Fixes typos and drawing errors.
PIC M-PIC Base Specification PDF 1.01 2/3/2023 Clifford DuBay Version 1.01
Change Bar
  • Version 1.01 of the Specification with the Change Bar.
  • Update Figures and Tables, add Errata content, include Hot Plug information.
PIC M-PIC Errata 1 and 2 PDF 1.0 2/1/2023 Clifford DuBay Link
  • Errata 1: Update Section 9.1 to Avoid High Current in Partial-Mate Conditions
  • Errata 2: Update Section 9.1.7.6 to increase the Power Rating from 1080W to 2000W.
XIO M-XIO Base Specification PDF 1.01 RC1 1/24/2023 Javier Lasa Link Incorporated Errata #1. ECN: Addition of cable construction considerations, incorporated cable considerations (alignment with PCI-SIG internal cable spec), clarification on P3V3_MGMT usage.
XIO Errata PDF 1.0 12/12/2022 Javier Lasa Link Update SFF-TA-1016 and SFF-TA-1033 pinouts.
DNO M-DNO Type 3 CAD Files STP 1 10/26/22 Mike Gregoire Link Type 3 CAD Files
XIO M-XIO Specification PDF 1.0 RC4 9/28/2022 Javier Lasa Link Reviewed in Oct meeting. Approved by the IC on 11/4/2022
PESTI M-PESTI Specification PDF 1.0 RC2 9/28/2022 Javier Lasa Link Reviewed in Oct meeting. Approved by the IC on 11/4/2022
DNO M-DNO PDF 1.0 RC5 9/28/22 Michael Gregoire Link Reviewed in Oct meeting. Approved by the IC on 11/4/2022
FLW M-FLW Specification PDF 1.0 RC5 9/28/2022 Corey Hartman Link Reviewed in Oct meeting. Approved by the IC on 11/4/2022
CRPS M-CRPS Specification PDF 1.0 RC4 9/28/22 Aurelio Rodriguez Echevarria Link Reviewed in Oct meeting. Approved by the IC on 11/4/2022
PIC M-PIC Specification PDF 1.0 RC7 9/28/2022 Clifford DuBay Link Reviewed in Oct meeting. Approved by the IC on 11/4/2022

Get Involved[edit]


Communication[edit]


Meeting Schedule[edit]

For monthly public meetings:

  • Schedule is the third Wednesday of every month at 0800 PST.
  • Each workstream has its own weekly meeting for companies that have signed the DC-MHS R1 CLA.
  • OCP DC-MHS Project Calendar


Recordings from Past Monthly Meeting Calls[edit]

Presenter (Company) Title Recording Slides
DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Charlie Ziegler, Cliff DuBay, Aurelio Rodriguez Echevarria, Greg Sellman, Dirk Blevins) March 2024 Public Call Recording Slides
DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Corey Hartman, Dirk Blevins) February 2024 Public Call Recording Slides
DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Greg Sellman, Dirk Blevins) January 2024 Public Call Recording Slides
DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Greg Sellman) September 2023 Public Call Recording Slides
DC-MHS Workstream Updates (Brian Aspnes, Mike Gregoire, Aurelio Rodriguez Echevarria, Greg Sellman) August 2023 Public Call Recording Slides
DC-MHS HPM Workstream Updates (Brian Aspnes, Mike Gregoire, Javier Lasa, Aurelio Rodriguez Echevarria, Greg Sellman) Includes earlier OCP information on the Contribution Process for reference. July 2023 Public Call Recording Slides
OCP Contribution Process
DC-MHS HPM Workstream Updates (Brian Aspnes, Andy Junkins, Aurelio Rodriguez Echevarria) June 2023 Public Call Recording Slides
DC-MHS HPM Workstream Updates and New Spec (Corey Hartman, Mike Gregoire, Aurelio Rodriguez Echevarria) May 2023 Public Call HPM WS Update Recording HPM WS Update

New HPM Spec

DC-MHS HPM Workstream Update (Corey Hartman, Mike Gregoire) and Delta and Artesyn Representatives April 2023 Public Call Recording HPM WS Update

Artesyn Presentation

DC-MHS Workstream and Subproject Leads March 2023 Public Call Recording Slides

Slides/Recordings from October 2023 OCP Global Summit[edit]

There were a number of DC-MHS Technical Talks and Experience Center Lightning Talks at the October 2023 OCP Global Summit in San Jose. The presentations and recordings are posted below.

Presenter (Company) Title Recording Slides
Paul Artman (AMD)
Dirk Blevins (Intel)
Rob Nance (Jabil)
Design with DC-MHS Video Slides
Dirk Blevins (Intel)
Shawn Dube (Dell)
Vincent Nguyen (HPE)
Edge-MHS – Bringing Modular Hardware System to the Edge Video Slides
Cliff DuBay (Intel)
Shawn Dube (Dell)
DC-MHS - 48V Support Video Slides
Tim Lambert (Dell)
Javier Lasa (Intel)
Phillip Leech (HPE)
DC-MHS's Road to Off-the-shelf/Interchangeable HPMs Video Slides
Michael Gregoire (Dell)
Brian Aspnes (Intel)
Corey Hartman (Dell)
Matt Bowman (Meta)
Andrew Junkins (AMD)
Panel - DC-MHS: Updates and New Form Factors from the M-HPM Team Video Slides
Gregory D Sellman (AMD)
Dirk Blevins (Intel)
Damien Chong (Meta)
DC-MHS Modular Shared Infrastructure (M-SIF) - Comprehending Multi-Node/Host Video Slides
Tim Lambert (Dell)
Mike Witkowski (HPE)
Todd Rosedahl (IBM)
Javier Lasa (Intel)
DC-MHS: Peripheral Out-of-Band Management Evolution Video Slides
Jeff Kennedy (Dell)
Javier Lasa (Intel)
Eduardo Estrada (Intel)
DC-MHS, M-PESTI: What, Why and When to Use It. Video Slides
Aurelio Rodriguez Echevarria (Intel) DC-MHS: M-CRPS base specification and test setup updates Video Slides
Chitrak Gupta (AMI)
Justin Thaler (Jabil)
Enabling DC-MHS Design for Future Datacenters with Dynamic Firmware Video Slides
Munir Ahmad (Lattice)
Lawrence Lo (Intel)
Raghu Kondapalli (Axiado)
Driving DC-SCM innovations and interoperability - presented by DC-MHS Video Slides
Richard Caubang (Advanced Energy)
Austen Cook (Jabil)
Rob Nance (Jabil)
Aurelio Rodriguez Echevarria (Intel)
Cross Vendor Interoperability in Server Design and M-CRPS/Test board Demonstration Speakers - presented by DC-MHS Video Slides


Slides/Recordings from April 2023 OCP Regional Summit[edit]

Presenter (Company) Title Recording Slides
Dirk Blevins (Intel)
Paul Artman (AMD)
Rob Nance (Jabil)
Data Center Modular Hardware System (DC-MHS) Overview & Update Video Slides


Slides/Recordings from October 2022 OCP Global Summit[edit]

Presenter (Company) Title Recording Slides
Michael Leung (Google)
Aurelio Rodriguez Echevarria (Intel)
Corey Hartman (Dell)
Tim Lambert (Dell)
Eduardo Estrada (Intel)
PANEL: DC-MHS R1 report-out and timeline Recording Slides
Siamak Tavallaei (Google)
Brian Aspnes (Intel)
Shawn Dube (Dell)
Jean-Marie Verdun (HPE)
Dharmesh Jani (Meta)
PANEL: Datacenter Modular Hardware System (DC-MHS) Recording Slides
Dirk Blevins (Intel)
Todd Westhauser (Meta)
Vincent Nguyen (HPE)
Practical Usage of DC-MHS M-DNO Concepts Recording Slides
Siamak Tavallaei (Google)
Dirk Blevins (Intel)
Multi-host Modular Systems (M-SIF) Recording Slides


Slides/Recordings from April 2022 OCP Tech Talks[edit]

Presenter (Company) Title Recording Slides
Shawn Dube (Dell)
Brian Aspnes (Intel)
DC-MHS Rev 1.0: Introduction and Overview (Datacenter - Modular Hardware System) Recording Slides
Corey Hartman (Dell)
Brian Aspnes (Intel)
DC-MHS: FulL Width HPMs (M-FLW) Recording Slides
Mike Gregoire (Dell)
Dirk Blevins (Intel)
DC-MHS: DeNsity Optimized HPMs (M-DNO) Recording Slides
Cliff DuBay (Intel)
Tim Lambert (Dell)
DC-MHS: Peripheral Infrastructure Connectivity (M-PIC) Recording Slides
Charlie Ziegler (Dell)
Javier Lasa (Intel)
DC-MHS: eXtensible I/O (M-XIO) Recording Slides
Tim Lambert (Dell)
Javier Lasa (Intel)
DC-MHS: PEripheral Sideband Tunneling Interface (M-PESTI) Recording Slides
Aurelio Rodriguez (Intel)
Jon Lewis (Dell)
DC-MHS: Common Redundant Power Supply (M-CRPS) Recording Slides


OCP Marketplace Entries[edit]

The most recent documents will always be in the OCP Marketplace, Specifications & Design Collateral

or the OCP Marketplace, Orderable Products

Entries below are for ease of use and historical reference. Please use the marketplace links for the most recent documents.

Type Description Version Submit Date Contributor License Notes