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Executing rescan-scsi-bus.sh -i ( LIP flag ) caused RAC Node to Hang (Doc ID 1645143.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 5.7 to Oracle Linux 6.5 [Release OL5U7 to OL6U5]
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 box kernel: rport-7:0-0: blocked FC remote port time out: removing target and saving binding
Apr 3 09:48:46 box kernel: sd 7:0:0:0: rejecting I/O to offline device
Apr 3 09:48:46 box kernel: sd 7:0:0:1: rejecting I/O to offline device
Apr 3 09:48:46 box kernel: sd 7:0:0:1: rejecting I/O to offline device
Apr 3 09:48:46 box kernel: device-mapper: multipath: Failing path 8:32.
Apr 3 09:48:46 box kernel: sd 7:0:0:5: rejecting I/O to offline device
Apr 3 09:48:46 box kernel: sd 7:0:0:5: rejecting I/O to offline device
Apr 3 09:48:46 box kernel: device-mapper: multipath: Failing path 8:96.
Apr 3 09:48:46 box kernel: sd 7:0:0:9: rejecting I/O to offline device
Apr 3 09:48:46 box kernel: device-mapper: multipath: Failing path 65:16.
Apr 3 09:48:46 box kernel: sd 7:0:0:10: rejecting I/O to offline device
Apr 3 09:48:46 box multipathd: 8:32: mark as failed
Apr 3 09:48:46 box multipathd: aocrvote: remaining active paths: 1
Apr 3 09:48:46 box multipathd: 65:16: mark as failed
Apr 3 09:48:46 box 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


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