Persistent Memory Redundancy?

[Mike Texter]

Hi, This is the first time I've really dug into PMMs (Intel Optane), so bear with me if I'm a little slow on the uptake.  It looks like you can configure these in either cache- or disk-mode, depending on your system.  We have a customer who's interested in adding disk-mode PMMs to their environment but has concerns about redundancy / what happens in the event of a PMM failure.  It seems as though there's no way to set up something akin to a hardware RAID for PMMs, but is there any other way to get redundancy at the hardware level?  The only options I've found are software-based, which doesn't seem great.  System in question is a DL360 Gen10. 

Quickspecs mentions nothing: https://www.hpe.com/psnow/doc/a00008159enus.pdf

Other HPE memory guides mention nothing: https://www.hpe.com/psnow/doc/a00017079enw

configuration tutorials on youtube mention nothing.  https://www.youtube.com/watch?v=AqqymYPAfWk

What would be a use case for PMMs in disk mode? Am I missing something?

Cheers,

[support_s]

System recommended content:

1. HPE Telco Blueprint Planning Guide | Recommended specifications for Compute

2. HPE Telco Blueprint Planning Guide | Recommended specifications for worker node (Intel-based)

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[Mike Texter]

Bad bot.

[MV3]

Hello 

RAID is not supported for Intel® Optane™ PMem modules. Intel® Virtual RAID on CPU (Intel® VROC), a RAID solution implemented for Intel® Xeon® Scalable processors, cannot be used too

Cheers...