Dear Group members,
In a cluster system with solaris volume manager setup, the system is fine till
the first restart. On restart, the multi-owner information is getting lost.
Also one of the nodes is no longer identified as a member of the diskset.
(/var/run/nodelist was manually created and is not persistent across reboots).
Can someone let me know how to ensure multi-ownership and membership
information is maintained even on reboot? I had posted a related item earlier,
but I didn't have info regarding the history of the system since it had passed
couple of hands before I got it. Now, the system has been setup from scratch.
Details of the steps performed are provided below:
-------------------------------------------------------
After OS+Cluster setup+Oracle rac patch, the following operations were
performed.
1. Create /var/run/nodelist with the below entries on both host1 and host2
1 host1 <host1-ip>
2 host2 <host2-ip>
2. Create multiowner disksets (on host1)
metaset -s oradg -M -a -h host1 host2
3. Add global devices to the disk set (on host1)
metaset -s oradg -a /dev/did/rdsk/d1 /dev/did/rdsk/d4 /dev/did/rdsk/d2
/dev/did/rdsk/d5
4. Ownership on as seen from both host1 and host2 are as below
# metaset -s oradg
Multi-owner Set name = oradg, Set number = 1, Master = host1
Host Owner Member
host1 multi-owner Yes
host2 multi-owner Yes
Driv Dbase
d1 Yes
d4 Yes
d2 Yes
d5 Yes
5. Reboot the system (host1 & then host2)
6. Now the diskset is no longer recognised as multi-owner. Also host2 is no
longer a member as seen from outputs of below commands.
root at host1 # scstat -D
Device Group Online Status
------------ -------------
Multi-owner device group: oradg -
root at host1 # metaset -s oradg
Multi-owner Set name = oradg, Set number = 1, Master = host1
Host Owner Member
host1 Yes
host2 No
Driv Dbase
d1 Yes
d4 Yes
d2 Yes
d5 Yes
9. Now create /var/run/nodelist on both nodes as before and attempt to join the
nodes into ownership list. host2 fails to join :(
root at host1 # metaset -s oradg -j
root at host2 # metaset -s oradg -j
metaset: host2: oradg: node host2 is not in membership list
root at host2 # metaset -s oradg
Multi-owner Set name = oradg, Set number = 1, Master =
Master and owner information unavailable until joined (metaset -j)
Host Owner Member
host1 multi-owner Yes
host2 No
Driv Dbase
d1 Yes
d4 Yes
d2 Yes
d5 Yes
root at host2 # /usr/cluster/bin/scconf -pvv | grep oradg
Device group name: oradg
(oradg) Device group type: Multi-owner_SVM
(oradg) Device group failback enabled: no
(oradg) Device group node list: host1, host2
(oradg) Device group ordered node list: no
(oradg) Device group desired number of secondaries: 0
(oradg) Device group diskset name: oradg
thanks in advance.
best regards
Shiv
This message posted from opensolaris.org
