xserve / internal RAID card / Battery Failed (code 0x#0 = 18)

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xserve / internal RAID card / Battery Failed (code 0x#0 = 18)

Hi, RAID utility is reporting a battery problem. I have rebooted xserve once, the problem went away, the battery was charged but now I have the problem again.

The result is a disabled write cache, which reduces performance.

Changing the battery is quite a big effort, so I really would like to avoid this. Any ideas, what the problem might be and how to solve it?

xserve 2009, Mac OS X (10.6.4)

Posted on Nov 18, 2010 12:32 AM

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Answer 1

Nov 18, 2010 11:14 AM in response to LordLobby

It may be normal, It's suppose to discharge itself every 3 months to condition the battery, check out

http://images.apple.com/xserve/pdf/RAIDUtility_UserGuide.pdf

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Answer 2

LordLobby Author

Level 1

15 points

Nov 18, 2010 1:45 PM in response to danadixon77

Hi, from the docs: "Conditioning can last up to 12 hours, and until the battery returns to full charge, RAID Utility displays a yellow battery warning status and alerts you that the write caches are disabled."

My state is bad longer than 12 hours and the color is red not yellow. I think it's a more serious problem.

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Answer 3

Nov 18, 2010 3:35 PM in response to LordLobby

Hi Lordlobby,

I've had this on 2, 2008 xserves. Started off randomly happening that the RAID card would report the same error code which wasn't down to the discharge cycle. It became worse so the battery was replaced and it's been fine since... It's about 15mins work to replace the battery..

Good luck
Beatle

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