Bind ubuntu to hard drive.

[Carsten Aulbert]

TwinZ Ubuntu Mailing List wrote:
> The previous server had a mirrored raid pair of SATA drives. One is in the
> box and the other one is actually two hard drives on removable 5,25" bays
> that are round-robinned every 24 hours (except weekends and holydays) for
> backup. One of the drives is placed on the box while the other is kept in a
> fireproof safe. After the second drive is being round-robbined, RAID rebuild
> procedure takes place, thus keeping the internal drive's contents in sync
> with the removable disk. So, at each time we have a pair of mirrored drives
> working and the previous day's backup intact within the safe in case we have
> a fire on the building or something.

Just a side note:

Please be very very careful with this set-up. If the RAID controller
detects the internal disk as faulty (maybe due to dying hdd) and no-one
sees this in time, you may end up with putting the backup back to the
internal drive by accident. I've seen something like this happening
because the backplane of the RAID controller had some troubles. There
was also a story like this on the daily WTF.

I would like to recommend to rsync/rsnapshot the data to a different
place as well (over a dedicated network connection).

Cheers

Carsten

PS: http://worsethanfailure.com/Articles/RAIDing_Disks.aspx