Specifications

5–21
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
6. On OpenVMS hosts only, change the SCSI version to SCSI-3 mode:
SET THIS_CONTROLLER SCSI_VERSION=SCSI-3
IMPORTANT: Once you change to the SCSI-3 version in OpenVMS, you must use
a special number called a
controller identifier , which makes the controller and the
command console LUN visible to the host. See the
IDENTIFIER switch with the
command “SET controller,” page 7–91.
7. Set the port topology for each port.
SET THIS_CONTROLLER PORT_1_TOPOLOGY=FABRIC
SET THIS_CONTROLLER PORT_2_TOPOLOGY=FABRIC
8. Put “this controller” into multiple-bus failover mode. Use the following syntax:
SET MULTIBUS_FAILOVER COPY = THIS_CONTROLLER
The “other controller” inherits “this controller’s” configuration, then restarts.Wait
for it to return to normal operation before continuing.
See details about failover modes in “Selecting a Failover Mode,” page 2–5.
9. If you want to enable mirrored write-back cache in a failover configuration, enter
this command:
SET THIS_CONTROLLER MIRRORED_CACHE
NOTE: Both controllers restart when you set mirror mode. This process can take
up to 5 minutes, depending on the amount of data that must be flushed from the
cache.
For details about caching techniques, see CACHING TECHNIQUES, chapter 2.
10. Set the time on the controller, which provides a baseline for replacing the
external battery, using the following command:
SET THIS_CONTROLLER TIME=DD-MMM-YYYY:HH:MM:SS
NOTE: All values are numbers, except for MMM, which uses the first three
letters of the month. When setting hours, minutes, and seconds—HH, MM,
and SS—you must use 24-hour time.