Executing rescan-scsi-bus.sh -i ( LIP flag ) caused Linux OS to Hang
(Doc ID 1645143.1)
Last updated on MARCH 16, 2023
Applies to:
Oracle Cloud Infrastructure - Version N/A and laterOracle VM - Version 3.2.1 and later
Linux OS - Version Oracle Linux 5.0 and later
Linux x86-64
Symptoms
RAC Node rebooted after executing SCSI rescan command.
Changes
Customer was rescanning Storage Paths after he lost one path to Storage Unit:
Apr 3 09:48:46 <HOST> kernel: rport-7:0-0: blocked FC remote port time out: removing target and saving binding Apr 3 09:48:46 <HOST> kernel: sd 7:0:0:0: rejecting I/O to offline device Apr 3 09:48:46 <HOST> kernel: sd 7:0:0:1: rejecting I/O to offline device Apr 3 09:48:46 <HOST> kernel: sd 7:0:0:1: rejecting I/O to offline device Apr 3 09:48:46 <HOST> kernel: device-mapper: multipath: Failing path 8:32. Apr 3 09:48:46 <HOST> kernel: sd 7:0:0:5: rejecting I/O to offline device Apr 3 09:48:46 <HOST> kernel: sd 7:0:0:5: rejecting I/O to offline device Apr 3 09:48:46 <HOST> kernel: device-mapper: multipath: Failing path 8:96. Apr 3 09:48:46 <HOST> kernel: sd 7:0:0:9: rejecting I/O to offline device Apr 3 09:48:46 <HOST> kernel: device-mapper: multipath: Failing path 65:16. Apr 3 09:48:46 <HOST> kernel: sd 7:0:0:10: rejecting I/O to offline device Apr 3 09:48:46 <HOST> multipathd: 8:32: mark as failed Apr 3 09:48:46 <HOST> multipathd: aocrvote: remaining active paths: 1 Apr 3 09:48:46 <HOST> multipathd: 65:16: mark as failed Apr 3 09:48:46 <HOST> multipathd: EMC: remaining active paths: 1
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
Scenario |
What is LIP ( Loop Initialization Protocol ) ? |
What LIP Reset may cause? |
Conclusion |