Reference Guide
Action: Identify and replace the failed component. To identify the failed component, select the enclosure in the tree 
view and click the Health subtab. Any failed component is identied with a red X on the enclosure’s Health subtab. 
Alternatively, you can select the Storage object and click the Health subtab.
The controller status displayed on the Health subtab indicates whether a controller has a Failed or Degraded 
component.
See the enclosure documentation for information on replacing enclosure components and for other diagnostic 
information.
Related Alert 
Information
Clear Alert Number: 2124
Related Alert Number: 2048
Local Response Agent (LRA) Number: 2090
SNMP Trap 
Numbers
1305
Event ID — 2123
Description Redundancy lost.
Severity Warning / Non-critical
Cause and Action Cause: A virtual disk or an enclosure has lost data redundancy. In the case of a virtual disk, one or more physical 
disks included in the virtual disk have failed. Due to the failed physical disk or disks, the virtual disk is no longer 
maintaining redundant (mirrored or parity) data. The failure of an additional physical disk results in lost data. In the 
case of an enclosure, more than one enclosure component has failed. For example, the enclosure may have 
suered the loss of all fans or all power supplies.
Action: Identify and replace the failed components. To identify the failed component, select the Storage object and 
click the Health subtab. The controller status displayed on the Health subtab indicates whether a controller has a 
Failed or Degraded component.
Click the controller that displays a Warning or Failed status. This action displays the controller Health subtab which 
displays the status of the individual controller components. Continue clicking the components with a Warning or 
Health status until you identify the failed component.
See the online help for more information. See the enclosure documentation for information on replacing enclosure 
components and for other diagnostic information.
Related Alert 
Information
Clear Alert Number: 2353
Related Alert Number: 2112
Local Response Agent (LRA) Number: 2090
SNMP Trap 
Numbers
1053
Event ID — 2124
Description
Redundancy normal.
Storage Management Message Reference 85










