[TriLUG] New computer...finally!

[Igor Partola]

Doesn't RAID also help with data integrity? If a failed primary disk
corrupted some files that later got backed up, you may have no way of
getting originals back, from what I understand.

Igor
On Dec 4, 2011 7:32 PM, "Alan Porter" <porter at trilug.org> wrote:

>
> > Basically, I'm looking for a desktop with at least 4
> > cores and 6-8GB of memory and 2 drives in a RAID1 for OS.
>
> Remember, RAID is not a backup strategy.  Fat-finger a command
> like "rm -rf /" and you'll lose two RAID copies just as fast
> as you'd lose one on a non-RAID disk.
>
> RAID is for high availability.  If you lose a disk, a RAID
> system can keep running while you hunt down a replacement
> disk.  If uptime is important to you, then RAID is the way
> to go.
>
> What's much more likely for home use is the need for a backup
> strategy.  In that case, you'd be better off setting up the
> two disks as separate partitions, and run something like
> rsback to make TimeMachine-like copies from the primary to
> the backup drive.  This would give you the ability to restore
> a deleted or changed file from one of many snapshots in the
> past.
>
> If you lost a disk using the non-RAID primary/backup strategy,
> you would lose a little time replacing the bad disk, and also
> while copying files from one to the other.  But that's not
> catastrophic for a home system.
>
> Again, RAID != backup.  For home, I would choose "backup".
>
> --
> # ɹǝʇɹoԀ uɐl∀
>
> --
> This message was sent to: Igor Partola <igor at igorpartola.com>
> To unsubscribe, send a blank message to trilug-leave at trilug.org from that
> address.
> TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
> Unsubscribe or edit options on the web  :
> http://www.trilug.org/mailman/options/trilug/igor%40igorpartola.com
> TriLUG FAQ          :
> http://www.trilug.org/wiki/Frequently_Asked_Questions