cancel
Showing results for 
Search instead for 
Did you mean: 

NetBackup upgrade to 7.5 caused sgscan to disappear

AV77
Level 4

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?

24 REPLIES 24

AV77
Level 4

thanks for your help! I will update after a reboot on weekend.

AV77
Level 4

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.

revarooo
Level 6
Employee

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 

Marianne
Moderator
Moderator
Partner    VIP    Accredited Certified

I have moved the solution to Martin's post.

AV77
Level 4

you are right! sorry.