Hi Gavin,
I don't know either. That's the big concern for me. I suppose I can test
that out.
My other thought was to take my full backups and restore them onto a USB
drive so I can directly upload the contents to my datacenter. Then I could
create a job to restore an incremental onto a directory then rsync it to my
datacenter, then delete the local data.
Just trying to figure out the best method.
-Mike
Gavin McCullagh-2 wrote:
>
> Hi,
>
> On Tue, 10 Nov 2009, Jesper Krogh wrote:
>
>> wvoice wrote:
>> > However, I'd like to be able to backup the backup data offsite. Right
>> now,
>> > my storage pool is on a file volume located in /data/backup/. I'm
>> trying to
>> > figure out the best way to do this. My usual mechanism is to use rsync
>> for
>> > my offsite replication. But these files are quite large now. Just
>> backing up
>> > the file will be very costly, unless I can mount it and get access to
>> the
>> > contents. Then I can copy the diffs.
>
> I was under the impression that rsync was very smart about updating the
> contents of a file. If (for the sake of argument) you had an incremental
> volume which you wrote to every night, you should be appending to the
> existing file (like a tape, right?). I would expect (perhaps naively?)
> that rsync would discover that some large chunk of the file was unchanged
> and mostly just transfer the newly appended data.
>
> I've never tried though. It would be interesting to test this.
>
>> Isn't the quick'n'dirty solution not just to make the individual
>> volume-files smaller? Say 100MB or similar. The for
>> differential/incremental runs you would eventually end up only
>> transferring the diffs.
>
> That's an option alright.
>
> As we're on the subject, has anyone considered running a bacula-sd in the
> cloud and running migrate or copy jobs to get the data across? That
> should
> be a pretty targetted approach which transfers exactly the correct data
> and
> allows simple (if slow) restores to be done from the cloud. I appreciate
> not every subscription service would allow you install a bacula-sd but a
> VM
> should. Might a subscription service offer a bacula-sd out of the box?
> You could of course do this over a VPN if need be.
>
> Would (pragmatic) security people shudder at the thought of this?
>
> Gavin
>
>
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