[Gllug] XFS_repair cannot find master or secondary superblocks

[Nix]

On Fri, 03 Mar 2006, Martin A. Brooks mused:
> A backup is an indexed archive that guarantees a point-in-time
> recovery of data to a time resolution decided by local policy. A
> backup is distributed, is stored off or near line, and is non-trivial
> to corrupt or delete.  A backup is on non-fragile media - a hard disk
> drive will almost certainly not survive dropping 1 meter onto
> concrete, a DLT tape almost certainly will.  A backup let's you see
> what changed, when (within the above set time resolution), and
> preferably whom it was changed by.

By these definitions, I have never had a backup, I have never worked
anywhere which had a backup, and I don't know of anyone who's had one
either.

I'd venture to state that only truly vast companies (and Linus Torvalds
with his distributed kernel tree ;) ) can afford such backups.

> A backup is what you use when your data centre has burned down, all
> the hardware is beyond recovery and you somehow have to get your
> production systems operational again.

Actually, a backup is what I use if I've fat-fingered and blown stuff
away that I shouldn't, or if I lost a couple of disks and RAID can't
recover. I don't need a secure repository in the Antilles stored in
adamantium armour and surrounded in metres of anti-shock stuff for that.

-- 
`... follow the bouncing internment camps.' --- Peter da Silva
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