When using a active/passive array, fence_scsi will get errors in the list of
devices. This will cause fencing to fail.
The problem appears to be that the command we use to get a list of devices (vgs)
will scan all devices, including the passive path. This generates errors to
stderr, and these errors get including in the list of devices.
Solution is to redirect stderr to /dev/null as part of this command. We already
do this in the scsi_reserve init script.
Fixed in RHEL5 branch.
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Hat Enterprise Linux maintenance release. Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
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An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
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if the solution does not work for you.