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Operating Systems Linux Red Hat Check disks not in a volume group? Post 302499465 by asanchez on Thursday 24th of February 2011 12:19:15 PM
Old 02-24-2011
Quote:
Quote:
But I'm also asking how can I list disks that are not initialized via pvcreate and, in consequence, not inside any volume group.

My first post also asked about the vxfs question.
You need to write a script to do this. First gather information about all your disks and partitions into a list. Then remove swap devices (or partitions) from this list. Then remove devices (or partitions) which are currently assigned to LVM or VxFS.
I know that I have to write a script, that's my goal.

To do what you mention, is that correct?:

Code:
fdisk -l | grep -v "swap" | grep -v "Linux LVM" | grep -vi "vxfs" | grep -v "*" | grep "Linux"

fdisk -l -> list all disk partitions
grep -v "swap" -> remove swap partitions from the list
grep -v "Linux LVM" -> remove partitions that have been "pvcreated" and "vgextended" from the list?!?!
grep -vi "vxfs" -> remove partitions that have been englobed inside VxVM ?!?!
grep -v "*" -> remove boot partitions
grep "Linux" -> remove rest of partition types not being Linux like from the list. For example with this I ensure removing "Extended" like partitions that cannot be "pvcreated"

And what about being aware of /dev/dm-X type partitions? I need it to be generic enough to list:

"Disk partitions/entire disks of any type capable of doing to them "pvcreate" + "vgextend" "

Thank you again

Last edited by asanchez; 02-24-2011 at 01:34 PM..
 

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

NAME
volunroot - Remove Logical Storage Manager hooks for rootable volumes SYNOPSIS
/usr/sbin/volunroot [-a | -A] OPTIONS
Specifies that all volumes on the system disk be converted back to UNIX disk partitions, not just the root and swap volumes, rootvol and swapvol. Forces removal of the private region unless it is the last one in the system. DESCRIPTION
The volunroot script can be used to restore the accessibility of the root, swap, and other file systems on the boot disk directly through disk partitions instead of through volume devices. The script also removes other changes that were made to enable booting of the system from the root volume, so that the system will boot with no dependency on the Logical Storage Manager. When used with no options, volunroot affects only the root and swap volumes, rootvol and swapvol. For volunroot to work properly, only one plex must exist for each of the affected volumes. This plex must be the one created by volrootmir or the original plex created when the root disk was encapsulated. This ensures that the underlying subdisks will have equivalent partitions defined for them on the disk. If these conditions are not met, the volunroot operation fails and none of the volumes are converted to disk partitions. The unwanted plexes can be removed using either voledit or volplex. SEE ALSO
volencap(8), voldiskadm(8), voledit(8), volintro(8), volplex(8), volrootmir(8) volunroot(8)
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