Re: [xcat-user] Genesis boot for ppc64le and RAID options for IBM AC922?

Tue, 21 Aug 2018 20:20:53 -0700

Hi Keith,
 
1. ppc64le for POWER9 nodes :  mknb ppc64
 
2. We do not have P9 with hard RAID nodes, we use iprconfig, diskdiscover and configraid in P8 before. You can use iprconfig to check if there are raid devices. You can use iprconfig interactive mode to show devices, or "iprconfig -c show-config". xCAT hard RAID solution is here: https://xcat-docs.readthedocs.io/en/latest/advanced/raid/hardware_raid.html?highlight=configraid
 
3. soft raid in xcat provision : https://xcat-docs.readthedocs.io/en/latest/guides/admin-guides/manage_clusters/ppc64le/diskful/customize_image/raid_cfg.html?highlight=raid
 
I think all these should be general for P8 and P9, if you have problem, you can paste here, we can have a look at it together.
 
 
Best Regards
--------------------------------------------------
Yuan Bai (白媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: by...@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇大厦
北京市海淀区东北旺西路8号，中关村软件园28号楼
邮编:100193
 
 
----- Original message -----
From: Keith Ball <kb...@redlineperf.com>
To: xcat-user@lists.sourceforge.net
Cc:
Subject: Re: [xcat-user] Genesis boot for ppc64le and RAID options for IBM AC922?
Date: Wed, Aug 22, 2018 6:38 AM
 
Hi All,
 
Two questions regarding the new POWER9 servers (in this case, AC922) and provisioning ppc64le:
 
1.) From documentation and mknb, it appears that creating a working ppc64le for POWER9 nodes is not yet supported. Does anyone know a workaround, or know when this feature might be released?
 
2.) Also, has anyone used iprconfig, diskdiscover and configraid to discover/configure hardware RAID on Power9? From what I can tell, no RAID solution was configured for the nodes, so the 2 disks appear to be un-RAIDed (show up as 2 distinct devices).
 
There does not seem to be anything in Petitboot, or similar at boot time, that looks like a RAID configurator (like the Intel RAID one would see on e.g. a Supermicro x86 machine). Have folks used hardware RAID on POWER9 machines, or have they used some software RAID solution, in conjunction with xCAT deployment?
 
Many Thanks,
   Keith
--
Keith D. Ball, PhD
RedLine Performance Solutions, LLC
cell: 540-557-7851
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