HP AD510A - StorageWorks Modular Smart Array 1500 cs 2U Fibre Channel SAN Attach Controller Shelf Hard Drive, Maintenance And Service Manual

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10 Array controller fi rmware
Each array controller contains Read-Only Memory (ROM), which holds the fi rmware that operates the
controller. In dual-controller con fi gurations, the two controllers must execute the same fi rmware version.
Included in this section:
• Determining the currently-installed fi rmware version
• Updating controller fi rmware
• Cloning controller fi rmware
• Recovering corrupted fi rmware
NOTE:
After updating MSA controller fi rmware, be sure to check the status of the MSA for unexpected issues.
Verify the status of the connections, de fi ned pro fi le types, redundancy settings, and storage con fi guration.
Determining the currently installed fi rmware version
To determine the fi rmware version currently running on a controller, do one of the following:
• On the MSA controller LCD panel, use the arrow keys to scroll backwards through the messages until
the
ARRAY CONTROLLER FIRMWARE VER <version>
message is displayed.
• Each time the MSA controller is restarted, view the fi rst message that displays the fi rmware version.
• In the CLI, use the
SHOW VERSION
command.
Updating controller fi rmware
Because the MSA can operate in a variety of operating system environments, several updating methods
are available. To perform an update, obtain the following items from the MSA website:
• Controller fi rmware (on the Software, Firmware & Drivers page.)
• Firmware updating guide (on the Technical Documents page.)
Cloning controller fi rmware
NOTE:
Cloning is possible only in dual-controller con fi gurations.
Each time a system with two controllers is powered on or restarted, or if a second controller is hot-plugged
into a single-controller con fi guration, the fi rmware versions on the controllers are compared. If the
fi rmware versions on the two controllers are different, the array controller LCD panel prompts to clone the
fi rmware from one controller to the other, so that they have the same version.
The determination as to which fi rmware version is used is based on the following criteria:
• If the MSA is being powered up with both controllers inserted, then the most recent version of fi rmware
is used regardless of which controller it resides on.
• If the MSA is already operating and an optional controller is hot-plugged, then the version of fi rmware
that is on the original (non-hot-plugged) controller is used regardless of its version. This ensures that
any host-initiated I/O to the controller is not interrupted.
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