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Author Topic: iscsi failure on select disks --  (Read 13066 times)

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moon8dog

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iscsi failure on select disks --
« on: July 05, 2007, 07:12:44 PM »
Have a new iscsi array (jetstor) we just connected. Using the iscsi initiator (not the TOE).

There are 16 luns on the iscsi, all of them for a single AIX node. cfgmgr picks up every drive okay. Problem is with creating VGs...

0516-1182 /usr/sbin/mkvg Open Failure on hdisk4.
0516-862 /usr/sbin/mkvg: Unable to create volume group.

lquerypv -h /dev/hdisk4
no return... This basic lquerypv should work just fine. Hit's all the other disks okay.

The file /etc/iscsi/targets only has one line, using iscsi as the targets name, so it just picks up everything.

Wanted to try and format/certify the drives, but diags doesn't list these drives...

Any ideas?

Michael

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Re: iscsi failure on select disks --
« Reply #1 on: July 27, 2007, 11:45:15 AM »
My guess is that there are some additional files that need to be installed, in particular - updates to the Pd* (Predefined ODM Datafiles) so that AIX accesses the correct drivers. Continuing with my "guessing" the disks are standard enough to be recognized by AIX as a hdisk, but the generic AIX drivers are not working and/or need some customization. THE AIX Pd* includes all IBM supported devices and attempts to support non-IBM devices - but this is always dependent on mutual levels and understanding regarding protocol conformance.

Check with the supplier. And if it is IBM - do please comment - so I know my guesswork is off-track.

rscotka

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Re: iscsi failure on select disks --
« Reply #2 on: September 24, 2008, 09:04:37 PM »
What version of AIX are you using? There are issues
with different iscsi products on versions before
5.3 ML4......ML5 and above seems to make things lots
easier....