dmp and 3510fc troubles



All,

Having a problem with DMP not disabling a controller once the pathway is
gone. To simulate a controller failures I merely unplug the cable providing
the secondary pathway to the array. I see errors from the sd and jfca
driver, but I never see the "dmp disable " message until AFTER I plug the
cable back in. While the cable is unplugged the following return
"positive" results

vxdisk path --> shows all pathways enabled
vxdmpadm getsubpaths dmpnodename=<one of the dmp devices> --> shows all
pathways "ENABLED".

Now, after plugging the cable back in I immediately see the "dmp disabled"
for the pathway message, and if i run the two commands again I now see the
pathways "DISABLED". After a few seconds dmp reenables the paths and all is
fine.


Sun V440
2 dual channel JNI/JFCA cards
Patch: 114878-09

Sun StorEdge 3510FC
1 logical volume with 3 partitions
2 for IO Fencing
1 for Oracle data

Solaris 9 Generic_117171-07
All VERITAS components are 4.0
VERITAS Storage Foundation for Oracle RAC
VERITAS Volume Manager
VERITAS Storage Foundation for Oracle
VERITAS File System
VERITAS Volume Manager
VERITAS Cluster Server
VERITAS Mapping Services


An interesting note here. When NODE(1) is master and I unplug the cable on
it vxconfigd dies thus causing the cluster monitoring to die. vxconfigd
isn't started again until I reconnect the cable.

Anyone out there have any similar experiences? My thought is that the jfca
driver isn't letting dmp know that the pathway is gone...it's as if the
driver gets locked up. I'm going to install rev 10 of the JNI/JFCA patch
and see if that helps.

Please shout if you have any suggestions.

Kris--


--
Kristopher T. Briscoe
Sr. UNIX Engineer
404.353.3223

Unix is very simple, but it takes a genius to understand the simplicity.
(Dennis Ritchie)
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