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soncscy
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Daily GFS Retention Longer than Weekly -- What happens?

Post by soncscy »

Hi all,

Just a weird scenario I kind of want to play with as I'm not quite sure what the behavior is, and I don't want to wait 2 weeks to find out ;)

Let's say that for whatever reason I had the following GFS settings for Tape:

Daily: Protect for 14 days (Appending to same tape)
Weekly: Protect for 1 week (New Mediaset for each interval, one tape Tape A)

Code: Select all

Daily
[        Week 1    ]  [        Week 2    ]  [       Week 3      ]
Su  M  T  W  T  F  S  Su  M  T  W  T  F  S  Su  M  T  W  T  F  S  
    i  i  i  i     i   i  i  i  i  i     i   i  i  i  i  i     i
Weekly
Su  M  T  W  T  F  S  Su  M  T  W  T  F  S  Su  M  T  W  T  F  S  
Fw1              Fw2                   Fw3                   Fw4


If I get it right, once we hit Friday on Week 1, the Fw from Week 1 will be eligible for overwrite, correct? Let's say my timing is perfect and we cycle the same tape.
Does that mean the increments for Daily from Week1 are forfeit in this set up as soon as Fw2 overwrites the original? '
Or does Veeam do something to try to ensure the Daily increments that still should be protected remain valid?

Edit: Fixed my scenario as I had a logical issue by putting the first full in the Daily pool, I mean the current issue where Fulls go to Weekly, and only increments are in Daily.

(PS I really hope that ascii lineup shows correctly for everyone :D I spent too much time formatting it)
Dima P.
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Re: Daily GFS Retention Longer than Weekly -- What happens?

Post by Dima P. » 1 person likes this post

Hello soncscy,
If I get it right, once we hit Friday on Week 1, the Fw from Week 1 will be eligible for overwrite, correct? Let's say my timing is perfect and we cycle the same tape.
Yes, if retention is set to one week.
Does that mean the increments for Daily from Week1 are forfeit in this set up as soon as Fw2 overwrites the original? '
Correct. Once first full is removed by retention, portion of the daily restore points linked to the first full becomes useless. Cheers!
soncscy
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Re: Daily GFS Retention Longer than Weekly -- What happens?

Post by soncscy »

All I need to know, thank you!
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