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Operating Systems Solaris Modifying properties to use scsi-3 reservation for disks with two paths in sun cluster Post 302954182 by hicksd8 on Saturday 5th of September 2015 06:01:18 AM
Old 09-05-2015
I've read your post a few times but find it difficult to determine exactly what's happening. However, without a doubt, although you might find it unavoidable to "abruptly shutdown" the cluster, for scsi3 LUNs this is bad news.

In scsi2 reserve/release the reservation(s) are cleared with a scsi reset (ie, a reboot) but in scsi3 the reservations are persistent and survive a reboot. Therefore such reservations need to be cleared somehow.

Read this:
Sun Cluster: Cluster Reservations and Quorum

I cannot be sure that this is your issue but "abruptly" shutting down a cluster with scsi3 LUNs should be avoided if at all possible.
 

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tapset::scsi(3stap)													       tapset::scsi(3stap)

NAME
tapset::scsi - systemtap scsi tapset DESCRIPTION
This family of probe points is used to probe SCSI activities. scsi.ioentry Prepares a SCSI mid-layer request See probe::scsi.ioentry(3stap) for details. scsi.iodispatching SCSI mid-layer dispatched low-level SCSI command See probe::scsi.iodispatching(3stap) for details. scsi.iodone SCSI command completed by low level driver and enqueued into the done queue. See probe::scsi.iodone(3stap) for details. scsi.iocompleted SCSI mid-layer running the completion processing for block device I/O requests See probe::scsi.iocompleted(3stap) for details. scsi.ioexecute Create mid-layer SCSI request and wait for the result See probe::scsi.ioexecute(3stap) for details. scsi.set_state Order SCSI device state change See probe::scsi.set_state(3stap) for details. SEE ALSO
probe::scsi.ioentry(3stap), probe::scsi.iodispatching(3stap), probe::scsi.iodone(3stap), probe::scsi.iocompleted(3stap), probe::scsi.ioexecute(3stap), probe::scsi.set_state(3stap), stap(1), stapprobes(3stap) IBM
--- tapset::scsi(3stap)
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