[TriLUG] Raid gurus?

[WA Brown]

Thats some of what I need to know. I have been working on the server backup. 
I was wondering if the raid set up would do what I needed. What I am 
thinking is that with Raid1, can I unplug one drive ,then plug in another 
and use that as a backup disk? Will the Raid build the new drive that I put 
in place? I have read a bunch about Raid but it dont answer these questions. 
Or am I thinking wrong?


WA Brown


----- Original Message ----- 
From: "Cristobal Palmer" <cristobalpalmer at gmail.com>
To: "Triangle Linux Users Group discussion list" <trilug at trilug.org>
Sent: Tuesday, March 14, 2006 7:58 PM
Subject: Re: [TriLUG] Raid gurus?


Did you look at
http://www.tldp.org/HOWTO/Software-RAID-HOWTO-1.html#ss1.4 already?

If a raid array is degraded by the complete loss of a drive, it
(software raid as described in the howto) won't automatically restore
it after it is reconnected.

see http://www.tldp.org/HOWTO/Software-RAID-HOWTO-6.html#ss6.3 for
info on how to simulate a failure.

We have a talk on LVM available in our archives, too. You might be
interested in doing raid + LVM.

http://www.trilug.org/talks/2005-10-raid/md-lvm-presentation

Peace,
CMP

On 3/14/06, WA Brown <brownwa at ftc-i.net> wrote:
> I have read some about Raid. Please explain what happens with Raid
> 1(mirroring). Does it do this automatically or something has to be done 
> for
> the working drive to take over? What would happen if I disconected one of
> the drives in a Raid1 config? Would the other drive automatically take 
> over?
> After the disk is put back in will the Raid update the drive to match the
> first one?Automatically?
>
>
> WA Brown
>
>
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--

Cristobal M. Palmer
UNC-CH SILS Student
cristobalpalmer at gmail.com
cmpalmer at ils.unc.edu
ils.unc.edu/~cmpalmer
"Television-free since 2003"
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