[clue-tech] RAID5

[Kevin Fenzi]

On Wed, 13 Dec 2006 00:17:37 -0700
wt at penguintechs.org (Warren Turkal) wrote:

> On Tuesday 12 December 2006 12:18, David L. Willson wrote:
> > I'd like to do everything hot, if I can.  Does anyone have advice
> > before I begin?

Linux software raid? Recent distro?
If so, then it should be pretty simple: 

mdadmin /dev/md0 --remove /dev/whateverdeaddrive
<shutdown and pull drive, put replacement drive in>
mdadmin /dev/md0 --add /dev/replacementdrive

(where md0 is your raid device...)

If you are using a hardware raid, see your bios raid management thing
or the like.

> 
> I don't believe that RAID5s can be resized while hot in Linux.

Not true. You can indeed do so since 2.6.17... 

See: http://scotgate.org/?p=107

for example. 
> 
> wt

kevin
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