Resetting The I/O Module - HP 4400 Software Manual

17. Determine whether the component blocking the upgrade is an I/O module or a disk drive:
a. Refer to the list of I/O modules you recorded in
of the offending I/O module is something other than Good or Loading firmware or if the
reported firmware version is the same as previously recorded in
the I/O module has not been upgraded, try resetting each I/O module as described in
"Resetting the I/O module" (page
17.b
b. Look at the disk enclosures in the navigation pane. For any disk enclosure with a yellow
attention or red warning icon next to it, expand the navigation tree to locate the component
with the problem. Record the enclosure and the affected side (A or B).
If you found the blocked event, but you cannot isolate a component causing the problem,
contact your HP-authorized service representative for assistance.
18. Correct any problems identified in
a. If there is an I/O module problem, follow the instructions in
(page 56)
same problems are detected, reset the other I/O modules in the disk enclosures that were
previously reset, following the instructions in
completing this second reset, repeat
your HP-authorized service representative for assistance. If no further problems are
detected, continue with
b. If there is a disk drive problem, determine which drive port (A or B) is causing the
code-load-blocked condition. Refer to the list recorded in
instructions in
each affected drive port. The associated I/O module is in the same disk enclosure and
on the same side as the affected port.
After completing the reset, repeat
NOTE:
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 that no exception conditions exist that may impact the reset. For example, if you want
to reset I/O module B, verify that I/O module A is in an optimal (Good) state (and vice versa).
Wait at least one minute between resets.
You can reset the I/O module in one of two ways:
Reset each I/O module individually—Use this method to reset up to five I/O modules or if 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—Use this method of you need to reset six or more I/O modules or if
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 individually. If an
offline upgrade is not possible, you can reset the I/O modules individually.
56 Upgrading the Enterprise Virtual Array
to check for disk drive issues.
for the affected I/O module. After completing the reset, repeat
"Step 6. Upgrading the disk drive firmware" (page
"Resetting the I/O module" (page 56)
Complete the I/O module resets before performing any other corrective action
Step
56). Before you perform the reset, continue with
Step 17.
"Resetting the I/O module" (page
Step 15. If the same problems are detected, contact
Step 15.
15. If the operational state display
Step 15 indicating that
"Resetting the I/O module"
Step
57).
Step 17.b, and follow the
for the I/O module associated with
Step
14. If the
56). After