HP StorageWorks External Storage XP user guide (T1706-96006, June 2006)

External Storage XP user guide 63
alternate path that is in the Standby status. When the primary path changes, the status of the
path becomes Normal.
• Backoff: External array replied Backoff. The path status is waiting for recovery because a
temporary error occurred in the external array’s LU. Even if the primary path’s status becomes
Backoff, the primary path does not immediately change to the alternate path. After the error
recovery, the status becomes Normal. If the status cannot be recovered from the error, the path
status changes to the other status.
• Characteristic2: External LU’s extended identifying information. This information is used for
identifying logical volumes in the EVA array. For more information, see ”Identifying logical
volumes of EVA arrays (using Characteristic 2)” on page 138.
Port tree
When you select the Port tab, this tree displays information about ports that have the External attribute.
The contents displayed in the Port list changes depending on the item selected in the Port tree. For
instructions on setting the port attribute, see ”Setting a local array’s port attributes” on page 72.
Figure 33 Port tree
• Subsystem
When selected, displays nothing in the Port list. Subsystem is selected when you initially display the
Port tree.
• External
When selected, displays information about the port whose port attribute is set to External in the Port
list.
• Local array port number
When selected, displays connection information about the selected port in the Port list. One of the
following icons appears on the left of each port number:
Icon Description
Port in Standard mode.
Port in Initiator/External MIX mode