[ubuntu-uk] Anyone ever tried kolab on feisty

[Alan Pope]

On Thu, 2007-09-27 at 10:57 +0100, Daniel Lamb wrote:
> I want raid 5 though, plus for the server I have I paid extra for the perc
> controller so kind of want to use it.
> 

Linux software RAID does RAID 5 too. This screencast shows it :)

http://screencasts.ubuntu.com/MoS2007/10_Installing_Ubuntu_Part_2

Linux software RAID has some advantages over hardware RAID. Most notably
if you are using hardware RAID and the controller or host goes phut, you
can't access the data on the disks easily until you get a replacement
controller/motherboard/host. You also need to be careful about firmware
revisions on the controller, a replacement may have a newer (or indeed
older) version and thus may not be able to read the data at all.

With Linux software RAID you can pull the disks out (in a
disaster/emergency situation for example) and chuck them in any other
machine that has a compatible interface, and read the contents.

You also have quite a lot more control over the array using the md
(Multi-Disk) tools under Linux than you do under most BIOS-operated
hardware RAID solutions.

Cheers,
Al.
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