[OmniOS-discuss] iSCSI target hang, no way to restart but server reboot

[Dan McDonald]

> On Mar 27, 2015, at 9:07 AM, Matej Zerovnik <matej at zunaj.si> wrote:
> 
> Hello!
> 
> We are having issues with iSCSI on work. Every now and then, iSCSI target just hangs up. We are unable to kill it, restart it or do anything else to restore the service. The only option to restore iscsi target back to working state, is to reboot the whole server and loose all the sessions (around 100 clients).
> 
> Weird thing is, that only iscsi target hangs. I can ssh to server and work on it without any problem, there is no load or anything else, nothing in log files, just iscsi target locks up and all connections to iscsi target drop (probably timeout)
> 
> Server is a IBM 3550 M4 with dual Xeon E5-2640 CPUs and 160GB of memory.
> Hard drives are mounted in a Supermicro JBOD, which is attached via SAS HBA LSI Logic SAS2308.
> 
> We are using OmniOS v11 r151006.
> 
> Anyone encounter similar troubles?
> Any recomendations what to do or how to solve that problem?

I'd move to 012 or wait the short amount of time until 014 hits the streets.  Then see if your problem persists.

Dan