Re: RAID as backup ...

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Only partially relevant, but . . .

We have just set up ide raid5 set which we rsync our critical
servers to each night, in a weekly rotation. As there is a bit
of distance between the rsync server and the raid5 machine we
effectively have a very cheap warm offsite backup.

It saved our bacon just recently.

On Sat, 21 Sep 2002 07:01, Alvin Oga wrote:
> hi ya lee
> 
> - like the idea of using ide disks to backup other ide disks..
> 
> - i would NOT use raid1 ( mirroring ) for backup data
> 	- i would rather have 2 backup servers with 2 sets of backup disks
> 	than one backup server w/ mirror disks
> 
> - backup disks should be offline and unmountable except during the backup
>  process
> 
> - if you use raid1, and take one disk and hide it, your backup is
>   basically rendered dead(no longer raid) till you put that disk back in
>   again to backup more data to the "raid1" backup system
> 	- just use the one disk in that same removable tray and
> 	you are more likely to have a suitable/usable backup system
> 
> - always have different backup disks for daily backup, weekly backups
>   monthly backups and full backups... never use the same disks for it all
> 	( lose that disk, and you lose everything )
> 
> http://www.Linux-Backup.net
> 	- free backup scripts
> 	- 8x 120GB ide disks in one 1U chassis --> lots of fun(pain)
> 
> c ya
> alvin
> 
> > 	I intend to use RAID IDE to replace old, slow and problematic tape 
backup.
> > 
> > 	This is just theory at the moment, and I would like you to help punch 
wholes 
> > in my idea ...
> > 
> > 	Using normal IDE drives (3), USB 2.0 and an external housing and 5.25" 
> > mobile racks (2), I am playing with creating a RAID 1 setup.
> > 
> > 	If I remove one of the IDE drives from my RAID system.  Could I put it 
way 
> > in a safe and use it as a backup?
> > 
> > Mailed
> > Lee
> > 
> 
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> 

-- 
Franc Carter     Ph:61-2-8374-5071      Fax: 61-2-8374-5070
Systems Manager, SIRCA Ltd              http://www.sirca.org.au/

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