On 7/28/2016 7:22 AM, Josh Fisher wrote:
> On 7/27/2016 6:15 PM, Ken Mandelberg wrote:
>> What is the current thinking of the most effective way to use Bacula
>> doing storage to Google Drive?
>>
>> We have a fast network connection, with multi-terabyte Linux systems to
>> regularly backup. I don't think any of the Linux fuse filesystems for
>> Google Drive are really robust enough to depend on.
> How fast? A 100 Mbps connection equates to 6.25 MB/s or so. With
> compression, let's say an average of 10 MB/s. For 1 TB = 10^6 MB, it
> would take at least 10^5 seconds or just over 27 hours. A full backup of
> a multi-terabyte system would take days.
Sorry, that should be 100 Mbps = 12.5 MB/s, but it still takes days for
a multi-terabyte backup.
>
> Bacula expects its TCP connections to stay up for the entire job. It
> will fail jobs, rather than attempt re-connects. Bacula is targeting
> local network backups, rather than Internet backups, since the Internet
> is generally not fast enough. One network hiccup can fail the job on day
> 3. There may be a way to resume jobs, but I am not sure it is possible
> to resume failed jobs.
>
> Also, there is a maximum runtime for a single job that must be dealt
> with. It may require a patch and recompile to increase the max runtime.
>
> My opinion is that the Internet is not yet fast enough or robust enough
> for full backups of multi-terabyte systems. I would store fulls to local
> disk and then rsync to GD. It should be feasible to store incrementals
> directly to GD. However, if none of the filesystems are robust enough,
> then I would table the whole idea until they are.
>
>> If you agree, that just leaves writing to local storage and doing a
>> command line transfer at the end, and the reverse for restores. Is there
>> any support for managing the transfers (both backup and restore) without
>> manual interaction?
>>
>>
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