Hi,

> Alright, if I follow the explanation, then the below example is correct:
> 
> There is a dependency between savesets that impacts when a saveset will move
> from recoverable to recyclable. Consider this example:
> 
> Two pools: Daily and Weekly
> Two groups: Daily and Weekly
> Daily: incr backups of /home
> Weekly: full backups of /home
> 
> The browse and retention periods are set to 4 days for the Daily group and 1
> week for the Weekly group.
> 
> Day  1 - Full backup is made
> Day  2 - Incr -> depends on the Full
> Day  3 - Incr -> depends on the prior Incr
> Day  4 - Incr -> depends on the prior Incr
> Day  5 - Incr -> depends on the prior Incr
> Day  6 - Incr -> depends on the prior Incr; Day 2 Incr is recoverable
> Day  7 - Incr -> depends on the prior Incr; Day 3 Incr is recoverable
> Day  8 - Full backup is made; Day 1 Full is recyclable; Days 2-4 Incr is
> recyclable;
> Day  9 - Incr -> depends on the prior Incr; Day 5 Incr is recyclable
> Day 10 - Incr -> depends on the prior Incr; Day 6 Incr is recyclable
> Day 11 - Incr -> depends on the prior Incr; Day 7 Incr is recyclable
> Day 12 - Cycle repeats.
> 
> With this setup, it's not until Day 11 that all savesets from the week become
> recyclable and thus the volume becomes recyclable.

Day 8 is not entirely correct.

While a full backup is made, the incrementals on days 5, 6, 7 are not yet
recyclable. As such, none of the backups from the first week are recyclable.

It's easiest to remember thusly in NetWorker:

A backup only becomes recyclable if and only if the following 2 conditions
are met:

(a) Its retention period has expired;

(b) The retention period of all backups which depend on it have also
expired.

Cheers,

Preston

-- 
http://www.anywebdb.com
http://www.amazon.com/Enterprise-Systems-Backup-Recovery-Corporate/dp/142007
6396/ref=sr_1_1?ie=UTF8&s=books&qid=1196133406&sr=8-1

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