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Full Discussion: HP LV's for Hitachin Luns
Operating Systems HP-UX HP LV's for Hitachin Luns Post 302127640 by kapilraj on Thursday 19th of July 2007 12:55:28 AM
Old 07-19-2007
1. what things do I need to do or watch out for in this process.
Try to get the LUN sizes same so that it is easy to migrate
2. I am being to told that I am going to be given the Luns from th SAN team. What drivers would I need to install on the HP to attach the Hitachi Luns.
I would refer websites hp / hitachi to find / download the drivers.

3. What commands will I need to run to implement the Logical volumes.

== If you are to migrate , then LVM commands pvcreate,vgextend and pvmove are sufficient.

Start =>
Install the drivers
get the luns assigned from SAN team
run ioscan
Run insf

pvcreate the new LUNs
vgextend to the correct VGs
pvmove from old to the new

Check man pages for more details.

Last edited by kapilraj; 07-22-2007 at 01:28 AM..
 

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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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