Uninstall powerpath on a Boot from SAN configuration and get back to MPIO

Uninstalling powerpath when your rootvg resides on a SAN LUN, is not so easy, because you can’t install concurrently the MPIO disk driver fileset, with the one you’re using with powerpath ! And you won’t be able to uninstall the

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Checking SCSI reservation on your disks

UPDATE : I updated this post with a new information about devscan tool, which *should* work on AIX 5.3 and later AIX releases, and I added AIX 6.1TL7 support for devrsrv tool When you change the reserve_policy on a hdisk

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