RAID Array 450 HSZ50 HSOF Software Version 5.7 for Compaq Tru64 UNIX Release Notes

RAID Array 450 HSZ50 HSOF Software Version 5.7 for Compaq Tru64 UNIX
Page 58 AA–R1ZZE − TE
e. Connect the CLI interface to one of the controllers and perform the
SHOW <UNIT> command for the unit with the root device (D600 in case
of the example).
HSZ> show d600
LUN Uses
----------------------------------------------------------
D600 DISK600
...
State:
ONLINE to this controller
Not reserved
PREFERRED_PATH = THIS_CONTROLLER
...
If the output shows that the unit is “ONLINE” to this controller (as is the
case in this example), then THIS_CONTROLLER is the master
controller.
If the output shows that the unit is “ONLINE” to the other controller, then
OTHER_CONTROLLER is the master controller.
2. Establish a local connection to the master controller (determined in Step
1) through the maintenance port of that controller, which now becomes
“this controller”.
3.
Wait for the CLI prompt, and then shut down “other controller” by using
the following command:
SHUTDOWN OTHER_CONTROLLER
CAUTION
Before continuing, wait until the Reset button stops flashing
and stays lit continuously. This indicates that unwritten data is
flushed from the cache module.
4. Remove the program card ESD cover from “other controller”.
5.
Press and hold the controller Reset button while ejecting the old program
card. Release the button after the card is ejected.
6.
Press and hold the Reset button while inserting the new program card in
“other controller” Release the button after the new card is inserted.