7065Admin_Modify.fm Draft Document for Review August 30, 2007 12:59 am
226 IBM System Storage DS3000: Introduction and Implementation Guide
There can also be a forced failover from the preferred controller to the other controller
because of I/O path errors. This is reported with a critical entry in the event log, and will be
reported by the Enterprise Management software to e-mail and SNMP alert destinations.
During a VolumeCopy, the same controller must own both the source logical drive and target
logical drive. If both logical drives do not have the same preferred controller when the
VolumeCopy starts, the ownership of the target logical drive is automatically transferred to the
preferred controller of the source logical drive. When the VolumeCopy is completed or is
stopped, ownership of the target logical drive is restored to its preferred controller. If
ownership of the source logical drive is changed during the VolumeCopy, ownership of the
target logical drive is also changed.
Change Logical Drive Ownership/Preferred Path
1. Click the link to display the associated view (Figure 10-20). Highlight the logical drive to
display the current owner and preferred path. The other controller is selected under Select
new controller and preferred path. To change the logical drive to the other controller click
Change.
Figure 10-20 Edit Topology - Current Owner
2. Review the message in Figure 10-21 and click Yes.
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