
HSG80 Array Controller V8.7 Maintenance and Service Guide
5–23
Upgrading the Subsystem
9. Shut down both controllers using the following commands:
HSGA> SHUTDOWN OTHER_CONTROLLER
HSGA> SHUTDOWN THIS_CONTROLLER
NOTE: After the controllers shut down, the reset buttons and the first three LEDs turn O
N
(see Figure 5–3). This could take several minutes, depending on the amount of data that
needs to be flushed from the cache modules.
Proceed only after the reset buttons stop F
LASHING
and remain O
N
.
10. Upgrade the software on both controllers:
a.
Remove the program card ESD cover from Controller A.
b.
Press and hold the reset button while ejecting the old program card.
c.
After the program card is ejected, release the reset button.
d. Repeat step a through step c for Controller B.
IMPORTANT: In step e and step f, the simultaneous release of the reset buttons is
critical to make sure that both controllers are restarted and upgraded simultaneously.
e.
Simultaneously press and hold the reset button on both controllers, and insert
a new program card into each controller.
f.
Simultaneously release the reset buttons. Both controllers restart.
NOTE: A controller restart can take as long as 60 seconds, indicated by the temporary
cycling of the port LEDs and a F
LASHING
reset button. Disregard messages pertaining
to misconfigured controllers or failover status.
g. Install a program card ESD cover on each controller.
CAUTION: Stop at this point when upgrading the initiator site controllers and proceed
to upgrade the target site controllers.
Failure to stop at this point, without fully upgrading the target site controllers, could
cause the initiator and target site controllers to crash and prevent the host from
accessing data storaged in these subsystems.
Continue the shutdown upgrade procedure using the following procedure on the target
site controllers:
NOTE: During the target site upgrade, one of the initiator site controllers could restart with an
instance code of 0xE096980. This potential restart is expected and the associated instance
code can be disregarded.
1. From a host console, stop all host activity to the controllers and dismount the
logical units in the subsystem.