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September 26th, 2013 12:00
Cache battery 0 in controller 0 needs attention: Failed (Critical)
Nagios indicated that there is a critical error on our Dell 2950. We are running centos 5.8,
Is this something that we need to be concerned about?
Controller PERC 6/i Integrated (Slot Embedded)
ID : 0
Status : Critical
Name : Battery 0
State : Failed
Recharge Count : Not Applicable
Max Recharge Count : Not Applicable
Predicted Capacity Status : Failed
Learn State : Idle
Next Learn Time : 17 days 13 hours
Maximum Learn Delay : 7 days 0 hours
Learn Mode : Auto
Controllers
ID : 0
Status : Ok
Name : PERC 6/i Integrated
Slot ID : Embedded
State : Ready
Firmware Version : 6.2.0-0013
Minimum Required Firmware Version : Not Applicable
Driver Version : 00.00.06.15-rh
Minimum Required Driver Version : Not Applicable
Number of Connectors : 2
Rebuild Rate : 30%
BGI Rate : 30%
Check Consistency Rate : 30%
Reconstruct Rate : 30%
Alarm State : Not Applicable
Cluster Mode : Not Applicable
SCSI Initiator ID : Not Applicable
Cache Memory Size : 256 MB
Patrol Read Mode : Auto
Patrol Read State : Stopped
Patrol Read Rate : 30%
Patrol Read Iterations : 276
Abort check consistency on error : Disabled
Allow Revertible Hot Spare and Replace Member : Enabled
Auto replace member on predictive failure : Disabled
Load balance : Auto
Redundant Path view : Not Applicable
Thanks for any help.
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Daniel My
12 Elder
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6.2K Posts
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September 26th, 2013 13:00
Hello Mike
I suspect that the battery is in a failed state. If the battery charge drops below a certain threshold write caching is disabled to avoid data loss during power disruption. This occurs during normal operation when a learn cycle is processing because it drains the battery. According to the information provided the battery is not undergoing a learn cycle for 17 more days.
I would suggest pulling a controller log. In the controller/TTY log there will be detailed information about the battery's absolute and relative state of charge. The battery has likely either stopped functioning completely or is no longer able to hold a 24 hour charge. The battery at maximum capacity can hold a 72 hour charge. Once it can no longer hold a charge of over 24 hours it is considered failed, so in the log if the absolute state of charge is below 33% it needs to be replaced. It will typically not be marked as failed until it reaches 25% to allow for fluctuation.
Thanks