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Full Discussion: Stale PPs in AIX, failed disks.. how to replace?
Operating Systems AIX Stale PPs in AIX, failed disks.. how to replace? Post 302926079 by bakunin on Friday 21st of November 2014 02:27:31 AM
Old 11-21-2014
Quote:
Originally Posted by c3rb3rus
In turn, if I now run "bootlist -m normal -o" I get..

Code:
hdisk10 blv=hd5 pathid=0
hdisk14 pathid=0

Why is it showing there? I am concerned if a reboot happens I may not be able to boot.. how can I remove it and assign hdisk20 which is the replacement for hdisk14 in rootvg... or do I need to do anything further at this point?
There are two commands you need to know: "bosboot" and "bootlist".

With "bootlist" you can set (or display) the order (in NVRAM) in which devices are used to boot from. There are basically 2 lists of such boot devices, "normal" and "service". There is a "key position" that determines which boot list is getting used. Back then, in the times of physical machines, this was really a lock with a key and the key could be in one of 3 possible positions, "normal", "service" (sometimes named "maint") and "lock". Today this is only a virtual construct, but the terminology stuck.

With "bosboot" you bring a boot image to boot from onto a device. This copies the code that is executed during the boot onto the device you designated as boot device with "bootlist".

I suggest you read carefully the man pages of both commands, then read them again. You can render the system unusable with these commands, so spend some time and effort to really, firmly understand what they are doing. Only then use them to alter the boot list. (You will need both of them - proceed only if you understand why.)

I hope this helps.

bakunin
 

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LEARN ABOUT BSD

vgreduce

VGREDUCE(8)						      System Manager's Manual						       VGREDUCE(8)

NAME
       vgreduce - reduce a volume group

SYNOPSIS
       vgreduce  [-a|--all] [-A|--autobackup y|n] [-d|--debug] [-h|-?|--help] [--removemissing] [-t|--test] [-v|--verbose] VolumeGroupName [Physi-
       calVolumePath...]

DESCRIPTION
       vgreduce allows you to remove one or more unused physical volumes from a volume group.

OPTIONS
       See lvm for common options.

       -a, --all
	      Removes all empty physical volumes if none are given on command line.

       --removemissing
	      Removes all missing physical volumes from the volume group, if there are no logical volumes allocated on those. This resumes  normal
	      operation of the volume group (new logical volumes may again be created, changed and so on).

	      If this is not possible (there are logical volumes referencing the missing physical volumes) and you cannot or do not want to remove
	      them manually, you can run this option with --force to have vgreduce remove any partial LVs.

	      Any logical volumes and dependent snapshots that were partly on the missing disks get removed completely. This includes those  parts
	      that lie on disks that are still present.

	      If your logical volumes spanned several disks including the ones that are lost, you might want to try to salvage data first by acti-
	      vating your logical volumes with --partial as described in lvm (8).

SEE ALSO
       lvm(8), vgextend(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)					       VGREDUCE(8)
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