SAN/Storage device names (/dev/sdx) changes sometimes

Solution Verified - Updated -

Issue

  • The /dev/sdx name associated with SAN devices changes if the path is failed and restored back.

  • The system had assigned /dev/sdn device name to the SAN LUN, but after a reboot this name was changed to /dev/sdk, is this expected behaviour?

  • I am unable to rename the '/dev/dm-XX' device on the server.

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • SAN/Storage

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