Description of problem: multipath does not work due to a failure of scsi_id. When /sbin/scsi_id is run with -V(version) nothing is returned. Also when /sbin/scsi_id -u -g -s /block/sdq is run the wwid returned is longer than the wwid in RHEL 4. This prohibits multipath to set wwid in /etc/multipath.conf since the port of the SAN is returned in the longer wwid. Version-Release number of selected component (if applicable): udev-095-14.5 device-mapper-multipath-0.4.7-8 How reproducible: very reporducible Steps to Reproduce: 1.run /sbin/scsi_id -V 2.run /sbin/scsi_id -u -g -s /block/<device> 3. Actual results: nothing is returned for step 1 the long wwid is returned for step 2 Expected results: -V should yield version numbers the wwid should be limited to just the drive ID and not include the port on the SAN Additional info:
These are both scsi_id problems, not device-mapper-multipath problems. I'm switching the component to udev, which provides /sbin/scsi_id.
commit 11678eff6a40b05d192be65146a66d5e1e8252ec
# scsi_id -V scsi_id version: 0.9 '-x' now adds a ID_SERIAL_SHORT= environment variable, which is most likely what you want.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2014-1239.html