Saturday, January 16, 2016

Sun cluster Purging Quorum Keys

Purging Quorum Keys
CAUTION: Purging the keys from a quorum device may result in amnesia.
It should only be done after careful diagnostics have been done to verify why the cluster is not coming up.
This should never be done as long as the cluster is able to come up.
 It may need to be done if the last node to leave the cluster is unable to boot,
leaving everyone else fenced out. In that case, boot one of the other nodes to single-user mode,
identify the quorum device, and:
For SCSI 2 disk reservations, the relevant command is pgre, which is located in /usr/cluster/lib/sc:

pgre -c pgre_inkeys -d /dev/did/rdks/d#s2 (List the keys in the quorum device.)
pgre -c pgre_scrub -d /dev/did/rdks/d#s2 (Remove the keys from the quorum device.)

Similarly, for SCSI 3 disk reservations, the relevant command is scsi:

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