Compaq 5300 Array Controller

Whah
Whah used Ask the Experts™
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One of our servers has for a long time now displayed a message on post that the controller array batteries need to be replaced. Considering that the array is still functional, and that the batteries in there must have died long ago is there a risk of losing configuration settings or access to the array by putting the new batteries in? There is no warning in the manual, but just wanted another opinion.

Thanks,

Whah
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If I remember the 5300 controller, the barry can be changed while the server is up and running; as long as power is not lost during the battery swap time, no problem.
Commented:
There is no risk of losing configuration or access to the array by having dead batteries, or removing or replacing them.

Having failed batteries will simply disable write-caching, which reduces performance and disables higher level functionality such as being able to expand/extend the array or migrate the RAID from one type to another.
Top Expert 2009
Commented:
That's right. Battery can be changed any time with either power on or off won't affect to the array configuration.
The issue may not be a bad battery. I have seen a lot of the similar message to my Proliant Server and they have been resolved by upgrading firmware to the later version. In some cases, the battery went dead, but most of the cases, out dated firmware will send similar message. Try to update firmware before changing battery. Here is the new firmware.
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=316593&prodNameId=3279713&swEnvOID=181&swLang=8&mode=2&taskId=135&swItem=MTX-d87d2adda05644759b52957753

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