SCSI "reservation conflict" on a High Availability cluster node? - Red Hat Customer Portal

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Issue

There are 2 nodes belonging to a Red Hat High Availability cluster. Sometimes a reservation conflict occurred with one of the disks, which caused I/O problems and, consequently, the service running on the node which was using that disk was stopped and a migration of the service to the other node has occurred.

May  6 13:24:41 node2 kernel: sd 1:0:0:5: reservation conflict
May  6 13:24:41 node2 kernel: sd 1:0:0:5: reservation conflict

Environment

Red Hat Enterprise Linux 6

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