https://bugzilla.novell.com/show_bug.cgi?id=700423 https://bugzilla.novell.com/show_bug.cgi?id=700423#c0 Summary: HBA inbox driver responds with Device Disconnected after restoring connection Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: x86-64 OS/Version: openSUSE 10.3 Status: NEW Severity: Normal Priority: P5 - None Component: Other AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: chris.range@netapp.com QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.100 Safari/534.30 The problem is that MPP fail back is not occurring properly when the connection is restored resulting in IO failure as soon as the alternate path is removed. It appears that the HBA is responding to the host that the device is not connected which is most likely a bug in the driver. We have opened a bug report with Novell on this issue since it is possible an inbox driver issue, however it could be resolved with a standard driver patch. HBAs used: IBM 39Y9190 and IBM 43W3974 (Same chipset on card) Reproducible: Always Steps to Reproduce: 1. Started IO on each host and ran for 5 minutes. 2. Removed SAS cable from controller A host port. 3. Link state change detected and failover occurred. Ran IO for 5 minutes. 4. Re-attached SAS cable to controller A host port. 5. Waited for 15+ minutes, but failover did not occur automatically. Forced volume re-distribution via host software. Ran IO for 5 minutes. 6. Removed SAS cable from controller B host port. Link state change detected. IOs failed on each host. Actual Results: IO failed when second path was removed. Expected Results: First path should have been detected as returned and fail back should have occurred. Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: 2:0:5:0: scsi scan: INQUIRY pass 1 length 36 Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: 2:0:5:0: done SUCCESS 10000 2:0:5:0: Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: command: Inquiry: 12 00 00 00 24 00 Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: scsi scan: INQUIRY failed with code 0x10000 Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: target2:0:5: mptsas: ioc0: delete device: fw_channel 0, fw_id 4, phy 4, sas_addr 0x50080e51b5168000 Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: target2:0:5: mptsas: ioc0: delete device: fw_channel 0, fw_id 4, phy 5, sas_addr 0x50080e51b5168000 Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: target2:0:5: mptsas: ioc0: delete device: fw_channel 0, fw_id 4, phy 6, sas_addr 0x50080e51b5168000 Jun 15 14:54:27 kswm-iop-bc8-s9 kernel: target2:0:5: mptsas: ioc0: delete device: fw_channel 0, fw_id 4, phy 7, sas_addr 0x50080e51b5168000 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.