Connection to iSCSI storage lost after applying latest patches

This document (7007253) is provided subject to the disclaimer at the end of this document.

Environment

Novell Open Enterprise Server 2 (OES 2) Linux Support Pack 2
SUSE Linux Enterprise Server 10 Service Pack 3
SUSE Linux Enterprise Server 11

Situation

NSS volumes stored on NAS device accessed via iSCSI would dismount after copying a large file (anything in excess of 1 Gb) to it. Applying the latest available SLES10 SP3 patches to the server and restarting the server caused the server to lose connections to the NAS device.
The NAS device is an EMC Celerra
Kernel versions prior to 2.6.16.60-0.57.1 do not have these issues.


Resolution

Both issues where resolved by:

Stop the iSCSI daemon /etc/init.d/open-iscsi stop

Edit the file /etc/iscsi/iscsid.conf and make the changes as stated below:

#####################################################################
# To disable digest checking for the header and/or data part of
# iSCSI PDUs, uncomment one or both of the following lines:
node.conn[0].iscsi.HeaderDigest = None
node.conn[0].iscsi.DataDigest = None
#####################################################################

Delete the files in the directory of /etc/iscsi/nodes/
Finally restart iSCSI /etc/init.d/open-iscsi start and do a rediscovery of the target.

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:7007253
  • Creation Date: 24-Nov-2010
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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