HP Modular Smart Array 500 Starter Kit Guia do Utilizador descarregar pdf (Página 145)

HP StorageWorks 2300 Modular Smart Array CLI reference guide 145

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 Provisioning), which

means 128 LUNs are available for mapping volumes.

• Active-Active: FC only. Both controllers are active, and each has 128 LUNs for mapping

volumes owned by that controller only.

• Independent Cache Performance Mode: Cache mirroring and failover between

controllers is disabled, which results in improved write performance but at a risk of loss of

unwritten data if a controller failure occurs while there is data in the controller's cache memory.

• Single-Controller: There is only a single controller in the enclosure.

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.

• Redundant with independent cache: Both controllers are operational with cache

mirroring disabled.

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 FC system with one controller offline:

# show redundancy-mode

System Redundancy

-----------------

Redundancy Mode: Active-Active

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 single-controller system:

# show redundancy-mode

System Redundancy

-----------------

Redundancy Mode: Single Controller

Redundancy Status: Operational but not redundant

Controller A Status: Operational

Controller A Serial Number: 00C0FF0A4318

Controller B Status: Not Installed

Controller B Serial Number: Not Available

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