Jim Baxter <[EMAIL PROTECTED]> wrote:
>We need to put some sort of raid on our branch computers. I hope to be able
>to mirror two drives with software in some manner that allows a continous
>copy of one drive to another of a different size and brand. I have heard
>that there is a software raid package that will do this but I can not seem
>to find it and could also use your comments about how well it works.
Software RAID is part of the 2.2.x kernel series and can be loaded as a
module or compiled into the kernel. Although your mirrors can be located
on drives of different sizes & types, keep in mind the RAID array will only
be as large as the smallest drive or partition (assuming RAID-1). I
*think* all drives/partitions must be the same size for RAID-5, but I'm not
sure.
Which filesystems/directories are you planning on mirroring? Mirroring
user data is pretty straightforward, trying to mirror any of the system
directories can be a bit trickier, depending on which ones you want to mirror.
One other caveat - AFAIK, there's not way to non-destructively create a
software RAID array, so you'll need to backup the data, create the RAID
array and restore the data.
-Eric
Eric Sisler
Library Computer Technician
Westminster Public Library
Westminster, CO, USA
[EMAIL PROTECTED]
Linux - don't fear the Penguin.
Want to know what we use Linux for?
Visit http://gromit.westminster.lib.co.us/linux
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