ProLiant Servers (ML,DL,SL)
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P400: Battery/Capacitor Status: Failed

Occasional Contributor

P400: Battery/Capacitor Status: Failed

I replaced old BBU up to new BBU, but BBU status is not changed.

While replace BBU the server proliang 380 G5 was power off.
Any ideas?

=> ctrl slot=1 show 

Smart Array P400 in Slot 1
   Bus Interface: PCI
   Slot: 1
   Serial Number: PA2240J9SU242E
   Cache Serial Number: PA2270D9SU12SC
   RAID 6 (ADG) Status: Enabled
   Controller Status: OK
   Hardware Revision: B
   Firmware Version: 7.22
   Rebuild Priority: Medium
   Expand Priority: Medium
   Surface Scan Delay: 15 secs
   Surface Scan Mode: Idle
   Wait for Cache Room: Disabled
   Surface Analysis Inconsistency Notification: Disabled
   Post Prompt Timeout: 0 secs
   Cache Board Present: True
   Cache Status: Temporarily Disabled
   Cache Status Details: Cache disabled; low batteries.
   Cache Ratio: 50% Read / 50% Write
   Drive Write Cache: Disabled
   Total Cache Size: 512 MB
   Total Cache Memory Available: 464 MB
   No-Battery Write Cache: Disabled
   Cache Backup Power Source: Batteries
   Battery/Capacitor Count: 1
   Battery/Capacitor Status: Failed (Replace Batteries)
   SATA NCQ Supported: False


Occasional Advisor

Re: P400: Battery/Capacitor Status: Failed

Leave the server on for 15 minutes and then restart it again

Some BBU's (especially the older P400 ones) need a "power" capacity to get things starting

Else get a P410/P212 battery they work fine on a P400 (not the other way around btw) and they are newer and less prone to this problem

Check the LED's on the battery, if it turns yellow, it will fail to work it does not get charged)
Occasional Visitor

Re: P400: Battery/Capacitor Status: Failed

So the battery after replacement shows failed right!!

There are two options

a. Either the replaced Battery is DOA

b. If battery is fine, and again shows failed,  then you need to replace the 512MB cache installed on it.