Writing to IBM Ultrium TD3 LTO-3 tape drive attached to Emulex fiber channel controller fails with "Invalid Message Error"

This document (3551772) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 10 SP1
SUSE Linux Enterprise Server 10

Situation

Writing to an IBM Ultrium TD3 LTO-3 tape drive attached to Emulex fiber channel controller fails with an "Invalid Message" SCSI error message. Afterwards, no further write access to the tape drive is possible. The /var/log/messages file contains a SCSI error message like
 
kernel: st2: Error: 8000002, cmd: a 0 2 0 0 0
kernel: st: Current: sense key: Illegal Request
kernel:     Additional sense: Invalid message error

Resolution

The lpfc driver does not handle tagged command queuing correctly for this device. As a workaround, boot the system with the kernel command line optionscsi_mod.default_dev_flags=0x20,which will turn off of tagged queuing. A fix is scheduled for one of the upcoming maintenance updates of the Linux kernel for SLES10.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:3551772
  • Creation Date: 19-Oct-2007
  • Modified Date:04-Mar-2021
    • SUSE Linux Enterprise Server

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