topic Re: HPE Cray XD670 Raid Controller in High Performance Computing

HPE Cray XD670 Raid Controller

Roy21 — Thu, 27 Feb 2025 13:48:06 GMT

Some question I had for the Cray XD670 controller.

1. All the raid controller supported by Cray XD670. From what I can find from the quick spec pdf is MR 9560-16i only.

2. When switching from PCH to raid controller, is there any wiring guide?

Re: HPE Cray XD670 Raid Controller

shiva_jr — Thu, 27 Feb 2025 08:26:36 GMT

Hi @Roy21 ,
Based on my review of the QuickSpecs (page 6), HPE officially recommends the following RAID controllers. Hence, other RAID controllers may not work properly. Could you please share the HPE document where you found the compatibility of other controllers.
1. Broadcom MR 9560-16i 32-port 12GB PCIe 4 Tri-Mode Dual Controller for HPE P60998-B21
2. HPE Cray XD670 CRS4910 PCIe M.2 RAID Controller for HPC P60992-B21
Regards,
Shiva_jr

Re: HPE Cray XD670 Raid Controller

Roy21 — Fri, 28 Feb 2025 04:35:57 GMT

Hi @shiva_jr ,

Thanks for the info, the second controller is for M.2 SSD only right?.

As for the wiring, the controller has 4 ports that connect directly to the backplane?

Re: HPE Cray XD670 Raid Controller

shiva_jr — Tue, 04 Mar 2025 04:49:58 GMT

Hi @Roy21 ,
Based on my understanding of the QuickSpecs, the details are as follows. However, please confirm with HPE support before purchasing any components.

* The second controller is for M.2 SSD only right?
As per the quickspecs, (page no.6) it is M.2 controller supports 4 SSDs.

* As for the wiring, the controller has 4 ports that connect directly to the backplane?
I am not sure on number of ports, but yes, cable can be directly connected backplane.

Refer this:

Regards,
Shiva_jr

Query: HPE Cray XD670 Raid Controller

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Re: HPE Cray XD670 Raid Controller

LylaShannon — Thu, 20 Mar 2025 10:30:33 GMT

Thank you so much for answering.

The Cray XD670 supports the MR 9560-16i RAID controller, as mentioned in the quick spec. For switching from PCH to RAID controller, there should be specific wiring instructions provided by HPE or Cray. It's best to consult the official documentation or contact HPE support to get the proper wiring guide for the transition. Academized’s research paper writing service saved me when I had a deadline approaching. I found them through this https://academized.com/research-paper-writing-service site. The writer understood my topic well and provided a well-researched, clear, and properly formatted paper. I didn’t have to request any revisions because it was perfect the first time! If you need expert research paper help, this service is worth trying.