Reference Guide

NOTE: In addition, an in- progress bar does not display for subcomponents once the system begins to
process the update.
5.4 Updating hosts and components
If you want the hosts in the cluster to update all of the firmware to the version specified in the CSM
Update Bundle, on the Hosts page, click Update. A confirmation page displays and if you click Yes, rolling
updates on cluster starts.
The system performs the following steps:
1. The application (CSM) updates the cluster one host at a time, first placing the initial host in
maintenance mode.
2. After the host successfully enters Maintenance Mode, the update is applied and the host restarts.
3. The host is then taken out of Maintenance Mode.
4. After the host has successfully exited Maintenance Mode, the process repeats on the next host in the
cluster.
The update progress is reported on the Hosts page.
NOTE:
• The update process may require 45 minutes or more per host depending on many factors, such
as number of updates required, cluster utilization, or issues impacting vMotion (which would
delay hosts entering maintenance mode).
• If an update on a host fails, the system remains in Maintenance Mode and the update process
stops and is not applied to subsequent systems. If this happens, retrieve the diagnostic bundle,
and then contact Dell.
6 Uploading Update Bundle using the GUI
Before updating the bundle, download the most recent CSM Update Bundle from Dell.com/Support.
1. To update the CSM Update Bundle, on the left menu, click CSM Update Bundle.
11 Dell Storage PowerTools Cluster Services Manager User’s Guide