Change the iSCSI timeout

This document (000021037) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server for SAP Applications 15 SP1


The default timeout for the iSCSI service is 120 sec., if the iSCSI target won't become available during this interval, then iscsid service will give up. Later, you need to manually restart the iscsi service to allow for a new login.
# systemctl restart iscsi.service


There are two parameters that determine how long will iscsid attempt to log in before giving up:
node.conn[0].timeo.login_timeout = 15
node.session.initial_login_retry_max = 8
the formula(with default values) is:
   node.conn[0].timeo.login_timeout * node.session.initial_login_retry_max = 120s

Here's an example of how to change the "node.conn[0].timeo.login_timeout" parameter from 15 sec. to 60 sec. Therefore, extend the iSCSI timeout from 2 minutes to 8 minutes. 

1.) Get the iqn identifier
# iscsiadm -m session
tcp: [1],1 (non-flash)

2.) Get the current setting
# iscsiadm -m node -T iscsiadm -m node -T --op show | grep login_timeout
node.conn[0].timeo.login_timeout = 15

3.) Set a new value
# iscsiadm -m node -T -o update -n node.conn[0].timeo.login_timeout -v 60

4.) Verify the setting (same as step #2)
# iscsiadm -m node -T --op show | grep login_timeout
node.conn[0].timeo.login_timeout = 60
Note: This is an online task and no need to restart the iscsi service or reboot the system. 


You may need to tune the iSCSI timeout due to your storage or environment setup.
For further information about iSCSI, kindly, check this link


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:000021037
  • Creation Date: 09-Apr-2023
  • Modified Date:11-Apr-2023
    • SUSE Linux Enterprise Server for SAP Applications

< Back to Support Search

For questions or concerns with the SUSE Knowledgebase please contact: tidfeedback[at]

SUSE Support Forums

Get your questions answered by experienced Sys Ops or interact with other SUSE community experts.

Join Our Community

Support Resources

Learn how to get the most from the technical support you receive with your SUSE Subscription, Premium Support, Academic Program, or Partner Program.

SUSE Customer Support Quick Reference Guide SUSE Technical Support Handbook Update Advisories
Support FAQ

Open an Incident

Open an incident with SUSE Technical Support, manage your subscriptions, download patches, or manage user access.

Go to Customer Center