Redhat 7.5 host, kernel version 3.10.0-862.el7.x86_64, HBA card Qlogic 2692, server RH2285 V3, Driver 8.08.00.08.07.5-k9, FW 8.08.03,
test single controller fault, after single controller is removed, I/O switchover is slow and lasts for 1-2 minutes.
[Alarm information]
NA
[Cause Description]
HBA card driver problem
[Fault Locating]
1. The preceding conditions are met. HBA card Qlogic 2692, Driver 8.08.00.08.07.5-k9, FW 8.08.03.
2. UltraPath logs show that the delay for the driver to return errors is very large, which is hundreds of seconds.
[ERROR][LPM][LPM_CmdParseErrorStatusToActive][957]Cmd 28212416 op:0x2a find error consult by code{0x4.0xff.0x0.0x0.0x0} act {13.1.0.0.0}, delay{158042} disk {5} DevLunId{175} path {37}.
3. A similar exception is printed on the HBA card.
Jun 28 06:03:32 localhost kernel: qla2xxx [0000:82:00.0]-800c:1: do_reset failed for cmd=ffff94f14568b640.
Jun 28 06:03:32 localhost kernel: qla2xxx [0000:82:00.0]-800f:1: TARGET RESET FAILED: Task management failed nexus=1:9:1 cmd=ffff94f14568b640.
[Solution]
Downgrade the driver version to 8.08.00.07.
[Check After Restoration]
After the downgrade, the link switchover is normal.
[Application Version]
All storage devices
