7914support2-0209.fm Draft Document for Review March 28, 2011 12:24 pm
432 IBM System Storage DS3500: Introduction and Implementation Guide
Figure 14-137 Confirm Place In Service Mode
3. A controller in Service mode can be set to either the online or offline state using the
procedures described previously.
14.14.5 Recovery - Reset controller
This function causes the selected controller to perform a restart.
Use this procedure to reset a controller:
1. Select the controller in the Physical tab of the DS Storage Manager (Subsystem
Management) window and then select the Advanced ďŽ Recovery ďŽ Reset Controller
menu command, as shown in Figure 14-138 on page 433.
Note: Resetting a controller makes the controller temporarily unavailable for I/O until the
reset is complete. If a host is using logical drives owned by the controller being reset, the
I/O directed to the controller is rejected. Before resetting the controller, either make sure
that the logical drives owned by the controller are not in use, or make sure that a multi-path
driver is installed on all of the hosts using these logical drives. If a multipath driver is
installed then the I/Os will be processed through the alternate controller.
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