Seeing "Unknown Error" messages related to Multi-pathing

Solution Unverified - Updated -

Issue

Here are some of the errors from the log.

Nov 16 19:28:51 GA016A7B1 kernel: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
Nov 16 19:28:51 GA016A7B1 kernel: sd 0:0:0:6: [sdl] CDB: Write(10): 2a 00 05 29 03 78 00 00 08 00
Nov 16 19:28:51 GA016A7B1 kernel: end_request: I/O error, dev sdl, sector 86573944
Nov 16 19:28:51 GA016A7B1 kernel: sd 0:0:0:6: [sdl] Unhandled error code

Veritas is saying the devices they are controlling are also being controlled by multipathd.

Nov 16 20:46:35 GA016A7B1 multipathd: sdcp: add path (uevent)
Nov 16 20:46:35 GA016A7B1 multipathd: sdgp: add path (uevent)
Nov 16 20:46:35 GA016A7B1 multipathd: sdag: add path (uevent)
Nov 16 20:46:35 GA016A7B1 multipathd: sdec: add path (uevent)
Nov 16 20:46:35 GA016A7B1 vxvm-udev: device sdak with devno 66:64 has been added.
Nov 16 20:46:35 GA016A7B1 vxvm-udev: device sdhd with devno 133:48 has been added.

Environment

  • Red Hat Enterprise Linux 6.2
  • Veritas

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