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Questions tagged [battery]

50 questions
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Data consistency with RAID 5 and BBWC

I have a few questions about RAID 5, BBWC (Battery Backed Write Cache), filesystem (ext3) and optionally mysql. I have a hypothesis and I ask Server Fault community to validate or not this one: The system is UP, applications works with database and…
Joris.B
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Should you discharge a Li-ion battery all the way?

Should you discharge a Li-ion battery all the way before plugging it in? Is it especially pertinent when you get a new battery / laptop? Should you keep draining it all the time, or leave it plugged in whenever you can? All battery tips are welcome.
Paul Tarjan
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Buying a Refurbished UPS?

I have a 10 year old APC Smart-UPS XL with battery pack, and need new batteries. Looks like I'll be spending $500-700 in batteries. While shopping around, I noticed a few places selling refurbished UPSes with brand new batteries for pretty good…
Boden
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Dell Perc 6/i Raid Controller Battery Missing

I noticed when I installed the Dell OpenManage that the battery on my Raid controller is missing. Is this something that is critical? What does the battery do?
Chris
2
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1 answer

After UPS battery replacement (HP R/T 3000)

has any one had experience with this UPS? i have replaced the batteries but have't ran self test yet, if i run self test is there a risk of powering down the machines the UPS powers? just wondering if i should run the self test out of hours or…
GordonBpdZenith
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UPS Batteries different capacity

I'm trying to get a replacement battery for a Cyberpower UPS model CP425HG. The original battery is 12v, 3.6Ah. However, there are not identical batteries in my area, only 12v, 1.2 amp hour batteries and 12v, 7 amp hour batteries. Is it dangerous to…
Emmanuel Penunuri
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How can I tell if my hard drive(s) have Battery Backed Write Cache?

How can I tell if my hard drives have a battery backed write cache (BBWC)? How can I tell if it is enabled and/or configured correctly? I don't have physical access to my server. It's a GNU/Linux box. I can provide supplemental incremental…
Riedsio
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System failure after changing cache battery on IBM power5 machine

As the title states, I got a used IBM power5 9405-series machine, and after changing the cache battery, the system refuses to boot up. I only see a blank screen on the console. What could be the problem and How to diagnose it?
user2559578
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Rackable Systems S5000PSL does not boot: 3 beeps, no post

I have 6 Rackable Systems 1u servers, each with 2x4GB PC2 5300. 3 of them would boot and POST successfully, and the other 3 would not POST. Instead, these three would beep 3 times, indicating a memory fault as per the technical product…
Kyle Gibson
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APC SMX3000 Smart-UPS Battery has never been cycled. Is it still good?

I've recently inherited an APC SMX3000 Smart-UPS. The UPS has never been used. Is the battery still good? The battery is plugged in, but the UPS reports "No Batteries".
ephsmith
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apcupsd not working properly on centos 5

I have APC UPS and my servers are directly connected to it using power cable. I want to use network link to shutdown servers when ups goes on batter. the following is my config file. ## apcupsd.conf v1.1 ## # # for apcupsd release 3.14.10 (13…
shorif2000
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HP Smart Array P400/256MB SAS Controller BATTERY

This is probably a dumb question. I recently purchased a couple of refurbished HP SB40C storage blade for our HP Bladesystem c3000 enclosure. Each comes with an HP Smart Array P400/256MB SAS Controller and a 4.8V NI-MH cache raid battery. The smart…
3a2roub
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Gracefully Shutdown an Equalogic SAN

Like many others I have jumped on the VMware bandwagon. We are hosting all of our data on an Equalogic SAN and need a "gracefull" way to shut down the VMs and the SAN if the battery backups reach a certain level. (similar to what PowerChute did…
msindle
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Dell PowerEdge 1950 RAID Battery - what kind?

What kind of battery do I need for a Dell PowerEdge 1950 RAID? I am seeing an error code W1228 on the front which means <24 hours for the RAID battery. Per the Dell manual it says I need to replace it and shows pictures and that it sits in a pouch…
Scott Szretter
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Is there a way to find out a computer's BIOS password for the Hard drive?

I have a computer that a password appeared for the Hard drive, I have a Toshiba Satellite Pro, Model No. M15-S405. I called customer service and they want me to drive 200 miles so they can flash the BIOS. I know some friends who have jobs in…
killamjr
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