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Full Discussion: Volume Groups and the SAN
Operating Systems AIX Volume Groups and the SAN Post 302174233 by bakunin on Monday 10th of March 2008 12:30:32 PM
Old 03-10-2008
This is just an assumption: every volume group has a "quorum" - the number of disks which have to be there so that the system assumes the volume group to be ok despite maybe disks missing. If you have extended the VG the system may have increased the quorum and may have not decreased it when you reduced the VG.

Issue "chvg -Qn <vgname>" to require no quorum to keep the VG online.

I hope this helps.

bakunin
 

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COROSYNC-QUORUMTOOL(8)					      System Manager's Manual					    COROSYNC-QUORUMTOOL(8)

NAME
corosync-quorumtool - Set and display quorum settings. SYNOPSIS
corosync-quorumtool [-s] [-l] [-v votes] [-n nodeid] [-e expected] [-h] [-i] DESCRIPTION
Display the current state of quorum in the cluster and set vote quorum options. OPTIONS
-s show quorum status -l list nodes -v <votes> change the number of votes for a node * -n <nodeid> optional nodeid of node for -v -e <expected> change expected votes for the cluster * -h show nodeids in hexadecimal rather than decimal -i show node IP addresses instead of the resolved name -h (if no other argument) show this help text * Starred items only work if votequorum is the quorum provider for corosync SEE ALSO
corosync_overview(8), votequorum_overview(8), AUTHOR
Angus Salkeld 2010-05-30 COROSYNC-QUORUMTOOL(8)
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