Specifications

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Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
Setting a Port Offline
NOTE: By default, all ports are online and able to access targets and logical units,
even when they are designated as standby ports in transparent failover mode.
To take a port offline and turn off its access to targets and logical units, use the
following command:
SET THIS_CONTROLLER PORT_2_TOPOLOGY=OFFLINE
See “SET controller,” page 7–91 on how to use the offline switch.
Backing Up Power with a UPS
NOTE: By default, the controller expects to use an external cache battery (ECB) as
backup power to the cache module. You can instead choose to use an
uninterruptable power supply (UPS) to provide backup power in the event of a
primary power failure.
Use the following command:
SET THIS_CONTROLLER CACHE_UPS
If you are configuring dual-redundant controllers, also indicate that the other
controller’s power is supported by a UPS. Use the following command:
SET OTHER_CONTROLLER CACHE_UPS
The other controller inherits the cache UPS setting for this controller.
See “SET controller,” page 7–91 for details about setting the UPS.
See Table 2–2 on page 2–12 and Table 2–3 on page 2–15 for information about cache
policies.