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I have a 2-node RHEL 4.5 cluster. I am using SCSI fencing which
uses scsi-3 reservation. The 2 nodes are sharing devices on a FC storage array.
I am using a single path; there is no multipath driver involved. I am also
using GFS on top of LVM volumes. When I shutdown one of the nodes, the cluster does not send
any commands to the storage array to clear out the persistent reservations for
that node. This causes the resources not to fail correctly to the other node
since it cannot break the reservation done by the dead node. My questions are: 1. Is that a known issue? 2. Is there a way to turn some kind of debugging on the
cluster that will allow me to watch if any scsi PRIN/PROUT commands are sent to
the storage devices? Thanks. Abdel.. |
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