P400 Array controller need to be replaced ?

Too many runtime ECC errors have been received from the array controller P400 located in server slot 1. The controller has restarted without utilizing its DIMM.

Can someone explain to me what this error message means and if I need to be worried about losing data.
dirkdigsAsked:
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andyalderCommented:
It means the cache module is faulty. Is it less than 3 years old, if so place a warranty call. If not buy a new cache module, it will probably cost more buying a 256MB module as a spare part so I would buy a 512MB module plus battery 405148-B21 for about £120. You could of course try re-seating it first but ECC errors aren't notmally due to bad contacts.

On second thoughts if it is a 256MB module you can pick one up on eBay for $30, generally unused because people buy the 256MB controller and then upgrade it with the 512MB BBWC module and have the 256MB module left over. Most resellers have a few floating about in their left over bits boxes.
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saumen_hiCommented:
This is what u need

405836-001 (part no)  256MB battery backed write cache (BBWC) memory board - 40-bit, DDR - For Smart Array P400 controller  ,Priced  USD 81.70

405835-001 (part no)   512MB   attery backed write cache (BBWC) memory board - 72-bit, DDR - For Smart Array P400 controller  ,Priced  USD 303.05

please call 1-800-227-8164 for availability
or goto hp.com/buy/parts to place a order
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andyalderCommented:
That just goes to show the difference in HP spare part prices and the sales prices.

512MB including battery $199.95 from Sillworks, 512MB without battery $303 from HP parts. I know which I would buy ;)
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