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Operating Systems Linux Red Hat Volume group not activated at boot after SAN migration Post 302952211 by Peasant on Friday 14th of August 2015 09:18:16 PM
Old 08-14-2015
What was the naming policy of the new and old luns (multipath.conf generic mpathxy or the administrator specified the names ?)

What method was used during migration (pvmove, lvmirror or ?)

Can you post :

Code:
cat /etc/lvm/lvm.conf
multipath -ll
vgdisplay -v <volume group in question>
dmsetup info


Was /dev/mapper/name used LVM/VG operations ?
 

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

NAME
vgscan - scan all disks for volume groups and rebuild caches SYNOPSIS
vgscan [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--mknodes] [-P|--partial] [-v|--verbose] DESCRIPTION
vgscan scans all SCSI, (E)IDE disks, multiple devices and a bunch of other disk devices in the system looking for LVM physical volumes and volume groups. Define a filter in lvm.conf(5) to restrict the scan to avoid a CD ROM, for example. In LVM2, vgscans take place automatically; but you might still need to run one explicitly after changing hardware. OPTIONS
See lvm for common options. --mknodes Also checks the LVM special files in /dev that are needed for active logical volumes and creates any missing ones and removes unused ones. SEE ALSO
lvm(8), vgcreate(8), vgchange(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGSCAN(8)
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