On 12/21/2010 9:36 AM, infosyst wrote:
>
> Dan Langille wrote:
>> On 12/20/2010 7:26 PM, infosyst wrote:
>>
>>> I want to setup migration and need some thoughts on the best way to 
>>> configure things in order to achieve what I want.
>>>
>>> I have a backup server running bacula 2.4.4. It runs backups over the 
>>> network for 9 different servers and stores them to hard disk. I run a 
>>> single full backup once a week and differential backups every night the 
>>> rest of the week in a 7 day cycle.
>>>
>>
>> If you can upgrade.  That is nearly 2 years old.
>>
>>
>>>
>>> This is fine, but now I would like to migrate my backups to tape and store 
>>> the tape off-site each day. My thought is to move the hard drive backups to 
>>> a single day cycle and use the tapes for a 14 day cycle. That way I never 
>>> have to worry about disk space as there is always only a single day of 
>>> backups stored on the disks. This also means that the previous nights 
>>> backups are stored securely off-site as soon as they are migrated to tape.
>>>
>>> So basically what is the best configuration for doing this? My biggest 
>>> challenge is configuring the Pools/Volumes/Jobs in a layout that is ideal 
>>> for this setup. How should I approach that? Or should I be taking a 
>>> different approach to this?
>>>
>>
>> I just wrote: http://www.freebsddiary.org/bacula-disk-to-tape.php
>>
>> --
>> Dan Langille - http://langille.org/
>
>
> Yes, I can probably upgrade. I am reconfiguring most of it anyway so I might 
> as well while I am at it.
>
> Good writeup. Would you recommend that I use copy over migration?

That depends on you.  They are pretty much the same process, except copy 
copies the Catalog info.

> I have space to store up to 7 days of backups on the server hard drive. If I 
> understand it correctly,
> I can copy those jobs to tape and keep them for an additional 7 days if I 
> want (for a total
> of 14 days) and still restore individual files from them even after the 
> initial 7 days is up and the
> volumes on the server have been recycled/purged, correct?

Keep your File and Job Retention >= your Volume retention.  Your disk 
pool will have Volume = 7 days.  Your tape pool, 14 days.

 > The big benefit that I would see to copying
> is that if I need to restore anything within the first 7 days I can simply 
> restore it from the server
> without having to go get a tape and load it. What job completes faster, a 
> migration or a copy?

I say there isn't much difference.  Try it. See.

-- 
Dan Langille - http://langille.org/

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