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 52 AAR1ZZE
TE
9.2.1 Dual-Redundant Controller Rolling Upgrade
If your HSOF Software version supports a Dual-Redundant Controller Rolling
Upgrade, follow the below procedures.
CAUTION
Prior to installing HSOF V5.7 software, it is important to first
determine whether the two controllers in your dual-redundant
configurations have the same or different product IDs, this will
determine the upgrade procedure you will use to continue.
To view the product IDs on your dual-redundant controllers, establish a local
connection to the controller through the maintenance port of one of the
controllers, (which becomes this controller). Enter the following commands
and observe the resulting displays:
SHOW THIS_CONTROLLER and SHOW OTHER_CONTROLLER
The product ID is shown in the first characters of the display, prior to the
hardware serial number. Most controllers have the product ID of HSZ50 but
a very few controllers may have the product ID of HSZ50 (C) DEC.
IF the Product IDs of the two HSZ50 controllers in a dual-redundant pair
are the same, use the procedure for Same Product IDs for Dual-
Redundant Rolling Upgrade (Section 9.2.1.1).
IF the Product IDs of the two HSZ50 controllers in a dual-redundant pair
are different, and IF your current Compaq Tru64 UNIX operating system
version is V4.0x or lower, use the procedure for Different Product IDs
and Compaq Tru64 UNIX V4.0x for Dual-Redundant Rolling Upgrade
(Section 9.2.1.2).
IF the Product IDs of the two HSZ50 controllers in a dual-redundant pair
are different, and
IF your current Compaq Tru64 UNIX operating system
version is V5.0, use the procedure below for Different Product IDs and
Compaq Tru64 UNIX V5.0 for Dual-Redundant Rolling Upgrade
(Section 9.2.1.3).