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show redundancy-mode 181
show redundancy-mode
Description
Shows the redundancy status of the system.
Min. role
monitor
Syntax
show redundancy-mode
Output
Controller Redundancy Mode
Shows the system’s operating mode, also called the cache redundancy mode:
•
Independent Cache Performance Mode
: For a dual-controller system, controller failover is
disabled and data in a controller’s write-back cache is not mirrored to the partner controller. This
improves write performance at the risk of losing unwritten data if a controller failure occurs while
there is data in controller cache.
•
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.
•
Failed 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 with independent cache
: Both controllers are operational but are not
mirroring their cache metadata to each other.
•
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.
Other MC Status
The operational status of the Management Controller in the partner controller. This is not factored
into system health.
•
Operational
•
Not Operational
•
Not Communicating
•
Unknown
Example
Show the redundancy status of the system.
# show redundancy-mode
Basetypes •
•
Содержание AssuredSAN 6004
Страница 11: ...Document conventions and symbols 11 TIP Provides helpful hints and shortcuts...
Страница 58: ...58 Alphabetical list of commands exit Description Log off and exit the CLI session Min role monitor Syntax exit...
Страница 107: ...set led 107 Identify drawer 1 in enclosure 1 set led drawer 1 1 on Identify fan 1 in enclosure 1 set led fan 1 1 on...
Страница 114: ...114 Alphabetical list of commands See also set cli parameters show protocols...
Страница 139: ...show controller statistics 139 See also reset all statistics reset controller statistics...
Страница 153: ...show disk statistics 153 See also reset all statistics reset disk error statistics reset disk statistics show disks...
Страница 162: ...162 Alphabetical list of commands See also show power supplies...
Страница 207: ...show volume reservations 207 Basetypes volume reservations status See also release volume show volumes...