FW V06.XX/HAFM SW V08.02.00 HP StorageWorks SAN High Availability Planning Guide (AA-RS2DD-TE, July 2004)

Physical Planning Considerations
152 SAN High Availability Planning Guide
configured, an exit port on the director or switch, and the domain ID of the
destination director or switch. Each participating director or switch must be
configured as part of a desired path. The following rules apply when configuring a
preferred path:
■ The switch domain ID must be set to Insistent.
■ Domain IDs range between 1 through 31.
■ Source and exit port numbers are limited to the range of ports available on the
director or switch.
For each source port, only one path is defined to each destination domain ID.
As an example, refer to the three-director preferred path illustrated in Figure 59. A
preferred path is configured between a source server and destination device (A or
B), traversing Director 1, Director 2, and Director 3. To configure the preferred
path through the first director:
1. Select the Preferred Path option from the Element Manager application’s
Configure menu. The Configure Preferred Paths dialog box displays.
2. Click Add. The Add Preferred Path dialog box displays (bottom of
Figure 59).
3. For the director entry port, type 14 in the Source Port field. For the director
exit port, type 45 in the Exit Port field. For the destination device (Director
3), type 22 in the Destination Domain ID field.
4. Click OK to save the path configuration and close the dialog box.