Installation guide

Maintenance Processes
Manual No. 771961 6-13
To perform a shutdown:
1. Click Prepare for Shutdown.
Steps are taken to prepare for a clean controller shutdown, including
the following:
• switching to write through cache
• draining the cache
• electrically disconnecting the BBU
• sending instructions to the partner controller to carry out the same
actions
Under Controller Status, Preparing for Shutdown will be checked while
the above steps are taking place.
2. Click Refresh periodically to update status.
3. When Ready to Power Off is checked under Controller Status, click
Cancel to exit the dialog box. The user may now power off the
controller. The battery will remain charged and will not supply power
to the cache.
To abort a shutdown or return a controller to normal operation:
1. Click Return to Normal Operation.
2. Click Cancel to close the dialog box, then continue normal use of the
controller through GAM/WSAM.
To update status information from the controller during shutdown:
• Click Refresh.