I am having a back and forth with RH support on this.
Problem is my fibre attached qdisk is dm-multipathed yet when I issue "mkqdisk
-L" I don't see the /dev/mapper/mpath... but LUNs seen from individual fibre
paths.
In addition when I unplug cable (path B) for /dev/sdh1 (same as /dev/dm-13),
that node gets fenced out.
# mkqdisk -L
mkqdisk v0.5.2
/dev/sdd1:
Magic: eb7a62c2
Label: san_qdisk
Created: Mon Aug 2 13:19:09 2010
Host: host1
Kernel Sector Size: 512
Recorded Sector Size: 512
/dev/sdh1:
Magic: eb7a62c2
Label: san_qdisk
Created: Mon Aug 2 13:19:09 2010
Host: host1
Kernel Sector Size: 512
Recorded Sector Size: 512
/dev/dm-13:
Magic: eb7a62c2
Label: san_qdisk
Created: Mon Aug 2 13:19:09 2010
Host: host1
Kernel Sector Size: 512
Recorded Sector Size: 512
Has anybody got dm-multipath working for qdisk on RHEL 4.8 cluster?
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