Is it possible for low memory to cause this?

portable hard drive wiki image

Grave Graf

My laptop computer had been telling me that my battery needed replacing. I recently bought a portable hard drive and pulled some things off of my computer (about 100 GB worth) and now it's saying my battery is functioning properly, and is in perfect condition. I just wanted to know, could low memory cause my computer to think my battery is shot, or can laptop batteries repair themselves (I know this part is stupid)?

If it helps, the computer is a Hewlett Packard.

Answer
Sometimes the controller in the battery pack needs to be reset and something you did caused a reset. Draining the battery pack as completely as possible before recharging is claimed to be one way to cause a reset of the controller.

How big is the drive in the laptop ? When you removed those things you might have freed up a lot of contiguous space that reduced "thrashing" of the hard drive.

Windows (and other operating systems) have a paging file on the hard drive. The operating system will offload data from RAM to the paging file so memory-intensive operations will run more smoothly. If the paging file is highly fragmented it causes more disk activity which requires more power from the battery.

If the operating system deletes the old paging file and creates a new paging file that is contiguous on the drive, thrashing is reduced and the laptop can actually power down the drive for longer periods, which gives the battery longer life.

http://en.wikipedia.org/wiki/Paging_file

There is no Wikipedia article about hard drive thrashing that I can find (yet).

Found a paragraph :
http://en.wikipedia.org/wiki/Paging#Fragmentation

What is a good brand name for portable hard drives?

Brian

I've never bought one of these before, so I have no Idea what to look for or what brands to trust.
If it matters, it's gonna be for my laptop, and it will mostly be used to hold my vast mountains of music.

Answer
a R.A.I.D (reluctant array of inexpensive/independent disk) is like a giant memory stick, litterally.
it's obviously bigger than a memorystick, and I think it's pretty good.

(wiki:)
Many operating systems provide basic RAID functionality independently of volume management.

Apple's Mac OS X Server and Mac OS X support RAID 0, RAID 1, and RAID 1+0.
FreeBSD supports RAID 0, RAID 1, RAID 3, and RAID 5, and all nestings via GEOM modules and ccd.

Linux's md supports RAID 0, RAID 1, RAID 4, RAID 5, RAID 6, and all nestings. Certain reshaping/resizing/expanding operations are also supported.

Microsoft's server operating systems support RAID 0, RAID 1, and RAID 5. Some of the Microsoft desktop operating systems support RAID such as Windows XP Professional which supports RAID level 0 in addition to spanning multiple disks but only if using dynamic disks and volumes. Windows XP can be modified to support RAID 0, 1, and 5.

NetBSD supports RAID 0, RAID 1, RAID 4, and RAID 5, and all nestings via its software implementation, named RAIDframe.

OpenBSD aims to support RAID 0, RAID 1, RAID 4, and RAID 5 via its software implementation softraid.

FlexRAID (for Linux and Windows) is a snapshot RAID implementation.

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