07-26-2012 06:46 PM
Hi,
After what seemed to be a successful upgrade of NetBackup Master/Media from 6.5.6 to 7.5.0.3 on Solaris 10 (VCS Cluster) my sg devices disappeared and I cannot rebuild them. At least without a reboot I can't.
The sg devices disappeared (sgscan returns nothing, not tapes nor disks) from both Solaris10 x64 members of the cluster.
I am puzzled by the fact that sgscan cannot see anything...
I can see the tape devices with "cfadm -al" as
c1::5005076312436e37 tape connected configured unknown
c1::500507631243acd1 tape connected configured unknown
but nothing is returned using sgscan.
in sg.conf I have these relevant entries:
name="sg" parent="fp" target=0 lun=0 fc-port-wwn="500507631243acd1";
name="sg" parent="fp" target=0 lun=1 fc-port-wwn="500507631243acd1";
name="sg" parent="fp" target=0 lun=0 fc-port-wwn="5005076312436e37";
name="sg" parent="fp" target=0 lun=1 fc-port-wwn="5005076312436e37";
and in sg.links:
name="sg" parent="fp" target=0 lun=0 fc-port-wwn="500507631243acd1";
name="sg" parent="fp" target=0 lun=1 fc-port-wwn="500507631243acd1";
name="sg" parent="fp" target=0 lun=0 fc-port-wwn="5005076312436e37";
name="sg" parent="fp" target=0 lun=1 fc-port-wwn="5005076312436e37";
modinfo returns:
188 7b35a000 35d0 328 1 sg (SCSA Generic Revision: 3.6)
I tried unlaoding the sg module by "modunload -i 188", and reload the driver but it returns
# modunload -i 188
can't unload the module: Device busy
Any suggestions??? Any thoughts why could it happen? Is "reboot -- -r" the only answer?
Solved! Go to Solution.
07-27-2012 06:44 AM
thanks for your help! I will update after a reboot on weekend.
07-28-2012 09:24 AM
Only rebooting (init 6) of the server managed to unload the old sg driver (v 3.6) and when the server came backup it loaded sg driver v 3.7 which seemed to solve all the problems!
Thanks to all, Martin and Marianne in particular.
07-28-2012 09:35 AM
You should've marked Martin's post as the Solution:-
Hmm, suspect the sg driver is having a moment, i'd just reboot, 'cos it ain't going to unload any other way
07-28-2012 11:24 AM
I have moved the solution to Martin's post.
07-28-2012 01:17 PM
you are right! sorry.