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Full Discussion: DISK and MPIO
Operating Systems AIX DISK and MPIO Post 303033180 by bakunin on Monday 1st of April 2019 06:59:44 AM
Old 04-01-2019
Quote:
Originally Posted by Phat
1. I can see there is 14 hdisks (from hdisk#0 to hdisk#13, come from DS5K) but in the mpio_get_config I only see 13 hdisks (from hdisk#0 to hdisk#12), the hdisk#13 is the new one from different storage V7000.
From my point of view, the mpio_get_config command should display the mpio info of hdisk#13 as well?
I don't know this command, but probably not:
Quote:
Purpose

Displays information about the DS3000 or the DS4000® subsystem that is based on multiple path I/O (MPIO) and the hdisks that are associated with the subsystem.
It may be that the command is able to list DS5k LUNs as well (like in your case) and maybe even the Storwize system but the way these IBM commands usually work is that they filter their information from the ODM. Remove the disk(s) and its associated adapter (rmdev -Rdl, see its man page for details) to remove the ODM information then run cfgmgr again to re-populate the ODM-entries.

Quote:
Originally Posted by Phat
2. What difference between this? It should be show the same drivers as the driver is AIX PCM?
Code:
hdisk12 Available 23-T1-01 MPIO DS5100/5300 Disk
hdisk13 Available 23-T1-01 MPIO FC 2145

See above: maybe just missing ODM information which a rebuild may fix, maybe the command just is not built to display subsystems like the V7000. You also may try this link from the NetApp manual and look if it helps your situation.

Judging from your last posts i'd suggest you take a look (again) at the zoning too and make sure that the system can indeed see the disks. Regardless of mpio_get_config working or not the system should be able to access the LUNs so that lspv, lsdev -Cc disk and similar commands should show them. Run cfgmgr and see if the LUNs show up.

I hope this helps.

bakunin
 

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