Technical data

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Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
Installing a New Program Card
Use the following steps to install a program card that contains the new software. If
you’re only upgrading the software in a single-controller configuration, disregard
references to the “other controller” and read the plural controllers as the singular
controller.
To upgrade the software by installing a new program card:
1. From the host console, dismount the storage units in the subsystem.
2. Connect a PC or terminal to one of the controllers’ maintenance port.
3. Shut down the controllers. In single-controller configurations, shut down “this
controller.” In dual-redundant controller configurations, shut down the “other
controller” first, then shut down “this controller” with the following commands:
SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER
When the controllers shut down, their reset buttons and their first three LEDs are
lit continuously. This may take several minutes, depending on the amount of data
that needs to be flushed from the cache modules.
CAUTION: Do not change the subsystem’s configuration or replace any
of its modules until you’ve completed this procedure to upgrade the
controller software.
4. Remove the program card’s ESD cover on “this controller.”
5. Press and hold the reset button while ejecting the program card from “this
controller” by pressing the program card eject button.
6. Press and hold the reset button while inserting the new program card; “this
controller” automatically restarts. The controller is ready to handle I/O when the
CLI is responsive.
7. Replace the ESD program card cover on “this controller.”