06-07-2011 03:29 AM
All,
We just finish to configure our cluster:
and we see this issue :
a service group with a DiskGroup agent is online on system B and offline on system A. (System A has already owned the service group).
When we reboot system A, we don't see the data disks anymore (OS nor VxVM).
From system B if we type vxfenadm -r /dev/vx/rdmp/xxxx an data disks we ca see a reservation type :
SCSI3_RESERV_WRITEEXCLUSIVEREGISTRANTSONLY
System cannot access to these disks and the service group cannot switch to system A after reboot.
After offlining the service group, the SCSI3 Reservation is released (normal), rescanning the SAN won't help system A to rediscover disks.
Regards,
Herve
Solved! Go to Solution.
06-15-2011 04:49 AM
there no issue... HCL only !!!
it was an HP XP128... not supported.
thanks for your posts, and i tried everything before regarding HCL...
Regards.
Herver
06-07-2011 10:46 PM
Hello,
I would like to review the cluster & iofencing configuration once ...
please update following from both the nodes:
# cat /etc/vxfendg
# cat /etc/vxfentab
# cat /etc/vxfenmode
# cat /etc/VRTSvcs/conf/config/main.cf
SCSI3_RESERV_WRITEEXCLUSIVEREGISTRANTSONLY is a normal key which you would see when a diskgroup agent has imported some disks exclusively on any node .. this is called a reservation key... this should be a normal behaviour that key is released when diskgroup is deported via VCS.
When you say that you don't see disks on node A when you reboot it ... I am not clear where you don't see the disks ? do you mean post reboot data disks are not visible to veritas ?
In the above example, if cluster heartbeats are ok, the once node A comes back to join the cluster, it will start the vxfen module & correspondigly register itself with coordinator disks & data disks. At this stage if you not seeing your data disks then there might be a concern from storage or iofencing config...
will review the config & let you know..
G
06-09-2011 05:38 AM
06-15-2011 04:49 AM
there no issue... HCL only !!!
it was an HP XP128... not supported.
thanks for your posts, and i tried everything before regarding HCL...
Regards.
Herver