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Old 24-11-2006, 01:03   #4
The Jackal
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Re: Software versus hardware RAID 0

Quote:
Originally Posted by Tristan View Post
Bear in mind that many "hardware" Raid chips, particularly the cheap ones that tend to be built into motherboards (nVidia, I'm looking at you), are actually "fake RAID" modules. With these, all the work is done by the drivers rather than the actual hardware. Sort of the Raid equivalent of a winmodem.

In this case, there is approximately zero difference in performance between a "hardware" Raid array and a software one.
Except that if you've installed fake raid via windows and then try to install linux :

Linux obviously will not see the RAID just 2 seperate disks

(think I've seen a few posts on this forum complaining about ubuntu not being able to see the disks during install)

I'm currently going through this pain at the moment I'll just buy a SATA RAID card - anyone know of a decent one that does hardware RAID ?

---------- Post added at 02:03 ---------- Previous post was at 01:15 ----------

Interestingly this seems to be very 'do-able' with the use of dmraid.

This guy didnt have much dice but it's lead me onto some great resources.

http://ubuntuforums.org/showthread.php?t=297049

which led me to : http://www.ubuntu-in.org/wiki/SATA_RAID_Howto

Which has the gist of what to do making understand where the problems were (this guide aint correct I tried it and failed).

Since Fedora supports mdraid I'm sure I'll find a way to get ubuntu running it.
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