[CentOS] way to replace DELL PERC 6/E card???

Wed Jan 5 15:19:15 UTC 2011
Dominik Zyla <gavroche at gavroche.pl>

On Wed, Jan 05, 2011 at 10:47:09PM +0800, mcclnx mcc wrote:
> we have several R900 servers with PERC 6/E card in it.  Recently it we getting some message on /var/log/message say change to "write back" and change back to "write through".   
> We figure out it is PERC 6/E card battery weak.  My questions are:
> 1. some battery only use one year (some even shorter) and already this problem.
> 2. How come PERC 5/E does not have this issue?
> 3. where is DISK array information store for PERC 6/E?  I did NOT see NVRAM on PERC 6/E card.
> 4. when replace PERC 6/E card and power on server sometime it will ask you "import configuration" ans some time it won't.  Why?
> 5. When replace PERC 6/E card and power on.  Server ask "import configuration" should I answer "yes"?

Yes, it'll import your raid configuration without data coruption. It
would also work with disks taken from older version of Perc.

> 6. where can I find documentation which mention "import configuration"?

Dominik Zyla

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