HP StorageWorks Enterprise Virtual Array Updating Product Software Guide (XCS 09534000) (5697-0754, October 2010)

15. Correct any issues found in Step 14 on page 61.
a. If there is an I/O module problem, follow the instructions in “Resetting the I/O
module” on page 62 for each affected I/O module. After completing the reset, repeat step
11. If no further problems are detected, continue with “Step 6. Upgrading disk drive
firmware” on page 63. If the same problems are detected, contact your HP-authorized service
representative for assistance.
b. If a disk drive issue is causing a code-load blocked condition, refer to the list recorded in
Step 14.b on page 61, and follow the instructions in “Resetting the I/O module” on page
62 for the I/O module associated with each affected drive port. To find the associated I/O
module, select the I/O module that is in the same disk enclosure and on the same side as
the affected port.
After completing the reset, repeat step 11. If no further problems are detected, continue with
“Step 6. Upgrading disk drive firmware” on page 63. If the same problems are detected,
contact your HP-authorized service representative for assistance.
NOTE:
Complete the I/O module resets before performing any other corrective action indicated
by other service procedures.
Resetting the I/O module
NOTE:
When resetting the I/O module, consider the following:
• You must reset one I/O module at a time.
• Before each I/O module reset, check the I/O tab of the Disk Enclosure Properties window to ensure
there are no other exception conditions that may conflict with the reset. For example, if you want
to reset I/O module B, check that I/O module A is in an optimal state (and vice versa).
• Wait at least one minute between resets.
To reset the I/O module, you can either:
• Reset each I/O module individually—Suggested when there are only a few I/O modules to be
reset (a guideline is five or less) or an offline upgrade is not possible. I/O throughput is briefly
reduced but does not stop host I/O so you can do an online controller software upgrade. Further,
resetting a few I/O modules individually will not take long.
• Power cycle the array—Suggested when there are several I/O modules to be reset (a guideline
is six or more) or an offline upgrade is possible. Although power cycling an array will interrupt
I/O and require an offline upgrade, it will take less time than resetting several I/O modules indi-
vidually. If an offline upgrade is not possible, you can reset the I/O modules individually.
To reset the I/O modules individually, you can:
• Remove and then re-insert the I/O module in each disk enclosure. See HP StorageWorks Disk
Enclosure I/O Module Replacement Instructions for instructions. See “Related information” on page
83 for document location.
• Insert a serial cable into the I/O module and issue the reset command via the serial line (requires
HP Services).
Upgrading the Enterprise Virtual Array62