[Linux-cluster] scsi reservation issue

[Ryan O'Hara]

Christopher.Barry at qlogic.com wrote:

> Ryan,
> 
> Thank you so much for your replies.
> 
> I tracked down the registration and reserve to the first cluster node,
> by converting the hex value to the IP per your instructions. All nodes
> reported only this one registration.
> 
> On that node, I try:
> # sg_persist -C --out /dev/sdc
> 
> and it returns a failure, citing a scsi reservation conflict.
> 
> I then try on kop-sds-01, the node holding the reservation:
> 
> #/etc/init.d/scsi_reserve stop
>   connect() failed on local socket: Connection refused
>   No volume groups found
> 
> 
> Now, I initially had clvmd running, and I had volume groups defined, but
> since I'm running on a netapp that does all of that stuff, I decided to
> simplify it and remove this stuff. I removed all that in the beginning,
> after initially trying to troubleshoot this problem. Are these
> reservations somehow stuck looking at an old lvm configuration
> somewhere?

Yes. The scsi_reserve script depends on clvmd running, since it looks 
for devices that comprise any cluster lvm volumes.

Glad we cleared up that issue.

> Thanks!

No problem at all.