Seeing message: "sd 2:0:0:0: rdac: LUN 0 (RDAC) (unowned)" in dmesg

Solution Unverified - Updated -

Issue

  • When udev starts and sees the SAN drives it begins trying to access them and receives I/O errors.
  • It is slowing down boot time tremendously.
  • Seen in dmesg:
device-mapper: multipath: version 1.3.0 loaded
sd 2:0:0:0: rdac: LUN 0 (RDAC) (unowned)
sd 2:0:0:1: rdac: LUN 1 (RDAC) (owned)
sd 2:0:0:2: rdac: LUN 2 (RDAC) (unowned)
sd 2:0:0:3: rdac: LUN 3 (RDAC) (owned)

Environment

  • Red Hat Enterprise Linux 6.2

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