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iscsid.conf timeout settings are not being honored

This document (7007358) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 11 Service Pack 1


MPIO iSCSI failover is taking two minutes even though the node.session.timeo.replacement_timeout parameter was changed from 120 to 5 in the iscsid.conf file


The problem is a configuration issue.

Most iSCSI documentation indicates that the /etc/iscsid.conf should be modified to change timeout values, etc.  However, this is for global settings.  The "default" configuration file for each initiator is stored  under /etc/iscsi/nodes/<target name>/<portal> and overrides settings in the global configuration file.

Example:  MPIO iSCSI failover is taking two minutes even though the node.session.timeo.replacement_timeout parameter is set to 5 in the iscsid.conf file.

Modify the "node.session.timeo.replacement_timeout" parameter in the default config file for each initiator.

The configuration file to modify is found under /etc/iscsi/nodes/<target name>/<portal>/default
where <target name> is the "iqn" value and "portal" is the IP,port value.

Initiating a directory listing on:
nts106:~ # ll /etc/iscsi/nodes/iqn.2010-12.lab\:test1/   <-- target name

We see the following two directories:
drw------- 2 root root 4096 2010-12-10 08:39,3260,1   <-- portal
drw------- 2 root root 4096 2010-12-10 08:40,3260,1      <-- portal

The default config file for each portal is found within its respective portal directory.  Notice that "node.session.timeo.replacement_timeout" is set to 120 here.  Change it to a lower 5 or so.  Make sure to do it for all multipathed initiators/portals!

Additional Information

iscsiadm is very useful for troubleshooting iSCSI issues, especially if the Yast2 interface does not appear to be functioning correctly.

See man pages for iscsiadm for details.


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  • Document ID:7007358
  • Creation Date: 10-Dec-2010
  • Modified Date:05-Mar-2021
    • SUSE Linux Enterprise Server

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