Udev's block device setups which generate /dev/disk/* should link to /dev/mpath/mpath*, not the underlying /dev/sd* units.
Issue
- Udev's block device setups which generate /dev/disk/* should link to /dev/mpath/mpath*, not the underlying /dev/sd* units.
#ls -l /dev/disk/by-uuid/
lrwxrwxrwx 1 root root 9 Jan 18 18:18 scsi-36001517db27840001458697809c0b2fd -> ../../sda
lrwxrwxrwx 1 root root 10 Jan 18 18:18 scsi-36001517db27840001458697809c0b2fd-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jan 18 18:18 scsi-36001517db27840001458697809c0b2fd-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f00ce20000000000000005 -> ../../sdga
lrwxrwxrwx 1 root root 11 Jan 18 18:19 scsi-360050cc000f00ce20000000000000005-part1 -> ../../sdga1
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f00ce20000000000000006 -> ../../sdge
lrwxrwxrwx 1 root root 11 Jan 18 18:19 scsi-360050cc000f00ce20000000000000006-part1 -> ../../sdge1
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f00ce20000000000000007 -> ../../sdgg
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f00ce20000000000000008 -> ../../sdgi
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f00ce20000000000000009 -> ../../sdgk
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f00d020000000000000031 -> ../../sdgc
lrwxrwxrwx 1 root root 11 Jan 18 18:19 scsi-360050cc000f00d020000000000000031-part1 -> ../../sdgc1
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f01d800000000000000034 -> ../../sdfo
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f01d800000000000000035 -> ../../sdfq
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f01d800000000000000036 -> ../../sdfs
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f01d800000000000000037 -> ../../sdfu
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f01d800000000000000038 -> ../../sdfw
lrwxrwxrwx 1 root root 10 Jan 18 18:19 scsi-360050cc000f01d800000000000000039 -> ../../sdfy
Environment
- Red Hat Enterprise Linux (RHEL) including:
- Red Hat Enterprise Linux 5 (RHEL5)
- Red Hat Enterprise Linux 6 (RHEL6)
- LUN's presented to the server with multiple redundant paths to that storage.
- device-mapper-multipath managing multiple paths to SAN or iscsi LUNS.
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