HP P2000

HP P2000 G3 MSA System CLI Reference Guide 223
show redundancy-mode
Description Shows the redundancy status of the system.
Syntax
show redundancy-mode
Output Redundancy Mode
The redundancy mode, also called the operation 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.
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.
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 Show the redundancy status of a dual-controller system where controller A is offline:
# show redundancy-mode
System Redundancy
-----------------
Redundancy Mode: Active-Active ULP
Redundancy Status: Operational but not redundant
Controller A Status: Down
Controller A Serial Number: Not Available
Controller B Status: Operational
Controller B Serial Number: 00C0FF0A4326
Show the redundancy status of an operational dual-controller system:
# show redundancy-mode
System Redundancy
-----------------
Redundancy Mode: Active-Active ULP
Redundancy Status: Redundant
Controller A Status: Operational
Controller A Serial Number: 00C0FF0A4318
Controller B Status: Operational
Controller B Serial Number: 00C0FF0A4326
Basetypes • redundancy
• status