Upgrading Firmware On All Disks - HP 6400/8400 Software Manual

firmware complements the operation of the controller software and, for best results, the two should
be used together.
• When upgrading many (more than about 20) disk drives online, a loop may fail; to reduce the
chance of such a loop failure, upgrade about 15 or 20 drives, then pause the activity for several
minutes by navigating away from the upgrade. Continue after a few minutes. To proceed after
such a pause, review the controller logs to establish where you are in the upgrade process and
relaunch the online upgrade. The upgrade will start where it left off.
CAUTION:
Observe the following cautions when upgrading disk drive firmware:
• Do not power off any components or perform controller resynchs or reboots during an upgrade.
• Do not perform HP Continuous Access EVA copy/merge activities across sites, site failovers,
cloning, or grouping or ungrouping of disks during an upgrade.
• Do not add to or remove members from DR groups during upgrade.
• Ensure that you upgrade the disk drive firmware after you upgrade the storage system software.
• Perform your upgrade during times of low I/O to minimize the time it takes to revert information
back onto the drive after the upgrade.
• If an error occurs during the upgrade, the process stops and must be restarted to upgrade disks
that have not yet been upgraded. Any disks that were upgraded before the error occurred do not
have to be upgraded again. Check the logs to verify status. When you restart the process, it starts
at the next disk that needs the upgrade.

Upgrading firmware on all disks

Upgrade the disk drive firmware after you upgrade the controller software.
1. Validate that adequate free space is available to manage disk failures that might occur after the
disk firmware upgrade.
2. Reduce EVA maintenance overhead by setting the disk replacement timer to five minutes. Reset
the value to the default (60 seconds) once the upgrade process is complete. The longer setting
prevents triggering migration and revert processes as disks are upgraded.
3. If you have not already done so, download the HP StorageWorks EVA Hard Disk Drive Bundle
zip file from the following website:
http://www.hp.com/support/evadiskfirmware.
a. Store the file to a known local directory. If you are running HP Command View EVA 9.x or
later, continue with step 4.
NOTE:
HP recommends that you use the default directory of C:\Program Files\
Hewlett-Packard\Sanworks\codeload. If you use a different directory, you
must enter the complete path when identifying the location of the firmware file.
b. If you are running HP Command View EVA 8.x or earlier, unzip the bundled image file and
place the files in a directory where HP Command View EVA resides (HP recommends that
you use the default directory noted in Step 3a.)
Continue with step 4.
62 Upgrading the Enterprise Virtual Array