[CentOS] Wait for 5 or just use 4.4?

Peter Kjellstrom cap at nsc.liu.se
Fri Mar 30 17:23:36 UTC 2007


On Friday 30 March 2007, Florin Andrei wrote:
...
> > 1. RAID : Was planning to run "hardware" RAID 1 on the server and has
> > noted comments that software RAID 1 on Linux may be better than raid 1
> > using onboard firmware controllers.
>
> This is a religious war, it's pretty hard to find unbiased opinion.
>
> Both are fine. Soft RAID is quicker to setup and cheaper. Hard RAID
> gives you more options.
> If you can't afford a good RAID card that can be replaced quickly in
> case something happens, use soft RAID.
> If you do use hard RAID, make sure you back up the card's config and
> keep the backup in a safe place.

This is probably a good idea anyway, but I'd like to point out that most 
hardware raid cards (and linux software raid) keeps the array config on the 
array members themselves. That is, you can typically swap the 
raid-controller, reboot and see your old arrays.

/Peter
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