HP P2000 G3, Cli Reference Manual

Page: 263 / 532

HP P2000 G3 MSA System CLI Reference Guide 263
show redundancy-mode
Description Shows the redundancy status of the system.
Syntax
show redundancy-mode
Output
Controller Redundancy Mode
Shows the system’s operating mode, also called the cache redundancy mode:
•
Active-Active ULP
: Both controllers are active using ULP (Unified LUN Presentation). Data
for volumes configured to use write-back cache is automatically mirrored between the two
controllers to provide fault tolerance.
•
Single Controller
: The enclosure contains a single controller.
•
Fail Over
: Operation has failed over to one controller because its partner is not operational.
The system has lost redundancy.
•
Down
: Both controllers are not operational.
Controller Redundancy Status
•
Redundant
: Both controllers are operational.
•
Operational but not redundant
: In active-active mode, one controller is operational and
the other is offline. In single-controller mode, the controller is operational.
•
Down
: This controller is not operational.
•
Unknown
: Status information is not available.
Controller ID Status
•
Operational
: The controller is operational.
•
Down
: The controller is installed but not operational.
•
Not Installed
: The controller is not installed.
Controller ID Serial Number
• Controller module serial number.
•
Not Available
: The controller is down or not installed.
Example From either controller, show the redundancy status of a dual-controller system where both controllers
are operating:
# show redundancy-mode
System Redundancy
-----------------
Controller Redundancy Mode: Active-Active ULP
Controller Redundancy Status: Redundant
Controller A Status: Operational
Controller A Serial Number: SN
Controller B Status: Operational
Controller B Serial Number: SN
Success: Command completed successfully. (2012-01-18 11:02:36)