Hi all,

The one thing I can see tripping me up is that from what I understand,
for a VirtualFull I will need access to ALL jobs since the last
VirtualFull. In the case of a removable eSATA drive that won't be online
all the time, I can't guarantee that access will be available to that drive.

At this stage, I have been using SQLite - simply to keep the entire
system contained. I do have a MySQL server available - but the idea is
to keep the backup system contained to a single VM.

The ponderings of which direction to go is difficult :)

On 08/06/14 18:31, Kern Sibbald wrote:
> 
> Hello,
> 
> I cannot help you with your overall design because I am more effective
> writing new code than helping with implementations (very important). 
> However a couple of points, which are my personal opinions:
> 
> 1. Your setup is medium size and would work fine with MySQL, but if you
> can accept a short term learning curve and would like long term peace of
> mind, I would use PostgreSQL to avoid performance problems later.  It is
> harder to setup correctly and tune in the beginning (performance is
> pretty bad with the out of the box PostgreSQL configuration, but
> longterm it performs in big installations *much* better than MySQL.
> 
> 2. You need to carefully setup incrementals forever, but Bacula has
> supported that feature from the beginning and if you take the time to
> understand and use Virtual Full jobs and accurate backups (at least once
> a week), Incrementals forever can be much more efficient compared to
> normal backups.  If you don't use accurate mode (at least occasionally)
> and VirtualFulls, stay away from incrementals forever.
> 
> 3. I also recommend using the Bacula "virtual" autochanger for disk
> based systems. It is very robust and simple, but there is not a lot of
> documentation on it.
> 
> Best regards,
> Kern
> 
> On 06/08/2014 05:00 AM, Steven Haigh wrote:
>> Hi guys,
> 
>> So I'm starting from scratch again with my bacula config. I thought I'd
>> try to get some pointers before I dive in head first again.
> 
>> My setup consists of multiple virtual machines. Some over GigE, some
>> over an ADSL connection (6000/800kbit). My aim is to transfer as little
>> as possible over the ADSL connection - but enough to be able to restore
>> if required.
> 
>> I would like to use some local disk storage (say 40Gb), and have the
>> rest go to a removable external eSATA drive. I'm thinking this could
>> mainly be done via job migration when the internal storage starts to get
>> full.
> 
>> As some insight, my current setup has ~167 daily incremental backups and
>> has used under 11Gb of space on the 'on disk' volumes. The amount of
>> data changed per day isn't really huge.
> 
>> Some more specific questions:
>> 1) I want to try and avoid vchanger and use something that can use the
>> eSATA drive properly - grow the number of volumes automatically to fill
>> the entire eSATA drive. Bonus points for being able to just plug in a
>> new eSATA drive and expand further.
> 
>> 2) From my previous posts, I heard that daily incrementals forever may
>> be a bad idea - the whole job based backup vs the file based backup that
>> I'm used to with TSM. What would be the suggested route for backups
>> being done? I obviously don't want to do Full backups over the ADSL
>> connection every week / month.
> 
>> 3) I'm starting from scratch with Bacula v7 and all systems are a
>> mixture of RHEL6 and Fedora 20. Are there any gotchas I should be aware
>> of straight up?
> 
>> 4) Any general comments? :)
> 

-- 
Steven Haigh

Email: netwiz AT crc.id DOT au
Web: http://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897
Fax: (03) 8338 0299

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