HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Upgrading the Subsystem
187HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Caution: Before attempting the upgrade procedure, verify that the subsystem
is in a stable state. This can be verified by examining the controller Reset
buttons and the adjacent LEDs. The Reset button should be flashing, while all
LEDs should be off (no light). Failure to perform this verification can result in
data loss or leave the controller in an unusable state.
The following procedure is categorized into four parts. To fully complete the ACS
upgrade for V8.8xP, be sure to complete all four parts.
■ Part 1: I/O load verification, page 187
■ Part 2: Initiator site upgrade (initial steps), page 188
■ Part 3: Target site upgrade, page 195
■ Part 4: Initiator site upgrade (final steps), page 202
Part 1: I/O load verification
Begin the rolling upgrade by checking the utilization of the initiator and target site
controllers:
1. Connect a PC or terminal to the maintenance port of controller A, at the
initiator site.
Caution: Each of the four controllers in a DRM configuration (two at the
initiator site, two at the target site) should be at least 50% idle before
attempting a rolling upgrade. Failure to do so can result in some jobs being
dropped during the upgrade.
2. Run VTDPY to verify that the utilization of each controller at the site:
a. Run VTDPY on controller A by entering the following command:
HSGA> RUN VTDPY
The controller percent idle is the first item displayed on the second line of
the VTDPY display.
b. If the controller is less than 50% idle, reduce the processing load.
Note: The VTDPY display refreshes every ten seconds.