Check Array Model, Os Version, And Operating State Using The Gui; Check Array Model, Os Version, And Operating State Using The Cli - HP HPE Alletra 2140 Hardware Manual

Active
The controller is actively responding to read/write operations from the host or hosts.
Standby
The controller is powered on, synchronizing mirrored data to the active controller, and available for controller takeover, should
it be required.
Solo
The controller is powered on, responding to reads/writes but there is no standby controller to takeover if a controller takeover
is required. If this controller fails, the array will be non-operational. (A controller will be in Solo mode if the 2nd controller is
in one of the following states: Unknown, Stale.)
Unknown
The controller is not powered up or is in the process of rebooting. During this time the active controller can not communicate
to the controller therefore it does not know which state it is in.
Stale
The controller has completed the bootup process but is not actively synchronizing or mirroring data with the active controller.

Check Array Model, OS Version, and Operating State Using the GUI

Obtain information about your array before performing general maintenance, software updates, hardware replacements, or
hardware upgrades.
Procedure
1. In the GUI, choose Hardware
2. Click the link for the array.
Look in the Properties section for the model number and OS version.
See also Find the Serial Number of an Array Using the GUI
3. Note the status of Controller A and Controller B.
Important:
One controller should be Active and the other in Standby. If any other state is shown, contact HPE Support.

Check Array Model, OS Version, and Operating State Using the CLI

Obtain information about your array before performing general maintenance, software updates, hardware replacements, or
hardware upgrades.
Procedure
1. Check the model number and OS version of the array.
array --info array name
Note the Model and Version number.
2. Check the operating state of the controllers.
ctrlr --list
Important: One controller should be Active and the other in Standby. If any other state is shown, contact HPE
Support.
Documentation Feedback: doc-feedback-hpe-storage@hpe.com
Array Components 53