Zitat von Sven Tegethoff <tegethoff AT udobaer DOT de>:

> On 21.08.2012 16:07, lst_hoe02 AT kwsoft DOT de wrote:
>>> Not very many. The vast majority of bacula installations use disk
>>> volumes, not tape - which is why debugging tape problems can take so
>>> long.
>> I always wonder how they handle offsite backup for disaster recovery...
>> Maybe the plan is simply to go bankrupt in case of fire/water and so on ;-)
>
> At my previous company, we used to do a primary backup on a local backup
> server, and then copied it over a 100mbit WAN line to a secondary
> offsite server at a colocation center over the course of the day. It
> still had risks that true offline backups don't have, but the
> "fire/water" case was very well covered by that, and it required a lot
> less manual "babysitting" than your typical tape backup. Tape backups
> are very high-maintenance in comparison, and disks have become so fast
> and cheap, it's often easier to build a couple of raids, and keep
> multiple copies around that'll only need intervention when disks fail or
> you run out of space. It's especially attractive if you're in an
> environment that requires a lot of restores, because disk backups are
> instantly available when you need them.
>
> Really, the times when tapes where THE one and only choice for backups
> are long over.

True, but you first need at least a 100mbit line to something some  
distance away from the building. We also use B2D for daily backups but  
have no choice for a cheap, high bandwidth offsite location where we  
can push some 3-4TB per week.

Regards

Andreas



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