Re: I/O hang on SLES10 SP2 with Device-Mapper

2008-11-20 Thread Anthony C
On Nov 19, 2:24 pm, Mike Christie [EMAIL PROTECTED] wrote: Anthony C wrote: I am running heavy load test to an array connected to SLES10 SP2 system (2.6.16.60-0.21) using open-iscsi and device-mapper multipath that comes with the distro. The test from time to time will also inititate

Re: I/O hang on SLES10 SP2 with Device-Mapper

2008-11-20 Thread Mike Christie
Anthony C wrote: Once the hanging occurred, I can leave it for days and it will still be hanging. And I haven't seen above iSCSI States or Lun State change meanwhile. I thought with dm-multipath, I/O error handling would be limited in scsi layer. And even with these error handling being

Re: I/O hang on SLES10 SP2 with Device-Mapper

2008-11-20 Thread Anthony C
On Nov 20, 11:20 am, Mike Christie [EMAIL PROTECTED] wrote: Anthony C wrote: Once the hanging occurred, I can leave it for days and it will still be hanging.  And I haven't seen above iSCSI States or Lun State change meanwhile. I thought with dm-multipath, I/O error handling would be

Re: I/O hang on SLES10 SP2 with Device-Mapper

2008-11-20 Thread Anthony C
On Nov 20, 2:59 pm, Anthony C [EMAIL PROTECTED] wrote: On Nov 20, 11:20 am, Mike Christie [EMAIL PROTECTED] wrote: Anthony C wrote: Once the hanging occurred, I can leave it for days and it will still be hanging.  And I haven't seen above iSCSI States or Lun State change meanwhile.

Re: I/O hang on SLES10 SP2 with Device-Mapper

2008-11-19 Thread Mike Christie
Anthony C wrote: I am running heavy load test to an array connected to SLES10 SP2 system (2.6.16.60-0.21) using open-iscsi and device-mapper multipath that comes with the distro. The test from time to time will also inititate lun reset. For whatever reason, after couple hours I/O would