On 3/31/2011 4:43 AM, Alan Brown wrote:
> Randy Katz wrote:
>> Hi,
>>
>> Now that I have used Bacula a full cycle (60 days) I have a question:
>>
>> If backups are done Full (which expires after 60 days).
>> Then Diff each week and Incre each day where there is no Diff
>> Then restoring from any given date going back 60 days is not a problem
>> UNTIL the initial Full is replaced/overwritten. At that point all the 
>> Diffs and Incre
>> up to the next Full cannot be restored (as far as I can see anyways)
>
> Only if you overwrite the existing Full - which is a "VERY BAD IDEA"
>
> What happens if the backup in progress is interrupted, as a staring 
> point?
>
> You should _always_ have _at least_ 1 full backup of a fileset in the 
> system, preferably 2. Overwriting your only copy is a recipe for 
> disaster.
>
> Expire your Fulls at 60 days but expire the media they're on at 190 
> days (3*60 + a safety margin) - and keep the database entries at least 
> that long or you'll have to do any restores of older files the long way.
>
>
>
>
>
Alan, thank you for that answer and please excuse my questions:

1. Do you have a different expire time (60d) for your Full then your 
Incrementals or does it matter?
2. Which parameter are you referring to?
     a. Full Expiration - Is it File Retention or Job Retention or both?
     b. Expire Media - What parameter are you referring to?

Thank you in advance,
Randy

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