Date/Time: Tuesday, January 19, 2010 12:02:31PM
Computer Model: HP Server
Slot Num Slot Type Array Controllers and Host Adapters Detected
——– ——— ——————————————–
SLOT 0 PCI Smart Array 6i Controller
SLOT 0 Smart Array 6i Controller ERROR REPORT:
Array accelerator status:
Batteries are not fully charged
Battery failure on battery pack 1, replace battery.
You probably don’t think about the batteries inside your servers very often, I know I didn’t, until I saw a notice upon rebooting my Exchange server. There’s two batteries inside, one on the motherboard and one that is plugged into the Array Controller (the HP Smart Array 6i 128 MB Battery Backed Write Cache (BBWC)).
The battery on your motherboard is a standard motherboard battery: 3v Lithium #CR2450N – $5.00
The Cache battery is more expensive: 3.6v NIMH 500MAH battery pack assembly (PN:307132-001) – $45.00-60.00
I bought one of each battery. I shut the server down and I replaced both the motherboard battery (why not, I was going to be in there anyway) and the BBWC battery. If that hadn’t worked, then my next step would be to update the firmware (currently v2.36). If that didn’t work then I would replace the whole BBWC module (PN:351518-001).
Alot of people have asked me if they can replace the battery without rebooting the server. I don’t see why not, though I didn’t do it that way. It sits in a tray connected to the module. Check the tray to make sure the contacts are strong. Clean with some steel wool if they are corroded, or replace the tray (PN:349989-001).
Other people have concerns that their settings could be lost. This is not the case as the settings are on the drive and array.
Note: The new battery can take up to 48 hrs to charge fully.
Update 2/2/2010: Replaced the motherboard battery and the Cache battery. The Diagnostic is error-free.
Update 9/27/2011: Same error about the cache battery. Updated firmware to version 2.84 and Array Diagnostic utility version 188.8.131.52.
Update 12/14/2011: Replaced the whole module and the battery. Takes a day for the battery to charge. All systems normal.
Below you can see the backside of the battery by itself and the battery mounted in the battery tray which has a cable attached which runs to the cache module.