[NTLUG:Discuss] Setting up a RAID

[Rick Renshaw]

--- Blue Dragon <thebluedragon at gmail.com> wrote:

> I am thinking about using 4 or 6 SATA drives on it and maybe having half 
> of the drives for the main RAID array while the other half of the drives 
> will be used to backup everything if possible.  I am trying to determine 
> what I will need for the case to get it running.
> 
> Also if it is possible to use half of the hard drives to backup 
> everything when needed how would I do that?

If you are using RAID 0+1 (1 to make a duplicate of every drive, and 0 to put the pairs together
into one large drive) then you can split the RAID 1 part of the array and remount the drive as
another device and back up that device.  When the backup is done, rejoin the backup disks to the
array.  Depending on the RAID controllers you are using (hardware and/or software) this may be
much easier said than done.  


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