Hello All,
We have a battery canister (part#: 370-2434) which we are replacing.
Manual (StoreEdge A3500/A3500FC Controller Module Guide)says this :

"Stop all activity to controller module. Make sure Fast Write Cache
LED on the controller and the active LEDs on the drives are off".

What I like to do is to shutdown the machine completely (shutdown -F)
and then detach power going to the unit and then replace the battery.

Is that ok to do ? Or, should server which is E4500 must be turned
on and running while I replaced the battery ?

Since we do not have support, I am not able to get answer from SUN..
Please help if you can.

thanks,

KP

In article <6b5b649d.0309250647.440f4fb5@posting.google.com >,
parikhk@hotmail.com (Kalpesh Parikh) wrote:

> We have a battery canister (part#: 370-2434) which we are replacing.
> Manual (StoreEdge A3500/A3500FC Controller Module Guide)says this :
>
> "Stop all activity to controller module. Make sure Fast Write Cache
> LED on the controller and the active LEDs on the drives are off".
>
> What I like to do is to shutdown the machine completely (shutdown -F)
> and then detach power going to the unit and then replace the battery.
>
> Is that ok to do ? Or, should server which is E4500 must be turned
> on and running while I replaced the battery ?
>
> Since we do not have support, I am not able to get answer from SUN..
> Please help if you can.

Why do you have A3500's without support? You really are in for a lot
more pain in your life if you don't. I hope your boss is also on the
on-call pager so he can 'share the love' when you have outages.

Be that as it may, the battery check is probably out on the rm6 health
check display. It will also proabably have disabled the write cache and
you have significantly lower write performance.

IIRC, the battery can just be swapped out at this point without shutting
the system down. The controller will recognize the change and start
charging it. Be sure to write the date is was swapped on the battery.
They last about 1 year. It will take a couple days for the battery to
become fully charged and the write cache will come back on
automatically. If it doesn't, that's why you have a service contract.

--
DeeDee, don't press that button! DeeDee! NO! Dee...

parikhk@hotmail.com (Kalpesh Parikh) wrote in message news:<6b5b649d.0309250647.440f4fb5@posting.google. com>...
> Hello All,
> We have a battery canister (part#: 370-2434) which we are replacing.
> Manual (StoreEdge A3500/A3500FC Controller Module Guide)says this :
>
> "Stop all activity to controller module. Make sure Fast Write Cache
> LED on the controller and the active LEDs on the drives are off".
>
> What I like to do is to shutdown the machine completely (shutdown -F)
> and then detach power going to the unit and then replace the battery.
>
> Is that ok to do ? Or, should server which is E4500 must be turned
> on and running while I replaced the battery ?
>
> Since we do not have support, I am not able to get answer from SUN..
> Please help if you can.
>
> thanks,
>
> KP


Hey,

best way is to stop the whole server, but all you need is to umount the
disks of the 3500, wait until the cache is written (LED) and then power off
the storage. Change your battery-pack and power on the machine.

Login to the box and monitor the refreshing of the battery-pack.

CU
Klaus Grote