On 07/14/11 19:56, Ken Mandelberg wrote:
> We currently backup our department network running Legato networker with
> backup to a raided disk array (advanced file device in their jargon)
> followed by cloning to a Qualstar/SAIT2 tape library.
>
> Our backup needs are increasing and we don't want to buy licenses for
> more file device space or more tape slots. We would like to go with
> Bacula and have no limits.
>
> In fact since SAIT has dead ended and its not clear to me if Bacula
> supports Qualstar, I wonder about an all disk solution.
I work for A Very Large Managed Hosting Company. We do all of our
customer backups using Bacula with storage on fault-tolerant SANs.
Make sure you have a BIG, FAST db server.
> However, the second feature of the tapes is that if the "file-device"
> fails (even raid fails), we can transparently go to tape. It also
> affords the option of off site copies of the tapes.
>
> Is there any strategy for Bacula that adds the reliability we would lose
> by abandoning the tapes. Perhaps a second redundant array combined with
> some removable drives for off sites?
With a fat enough pipe in between, you could have a redundant offsite
SAN and run copy jobs to it.
--
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