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Tape rotation: A *HUGE* error in the retrospect manual?


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hello,

 

our firm uses a standard 3 week tape rotation schedule that only requires our clients to touch the tapes once per week.

 

We make a 3 sets script using Set A, Set B and Set C:

- we do a Recycle to Set A on Friday, then do a Normal to Set A on M-Th the following week

- we then do a Recycle to Set B on Friday, then do a Normal to Set B M-Th the following week

- we then do a Recycle to Set C on Friday, then do a Normal to Set C M-Th the following week

- we repeat on an every 3 week schedule.

This gives us a full backup and the following 4 days of incremental backups on the tapes as they are taken off-site for storage.

 

The Retrospect MANUAL, however, shows a similar rotation with a HUGE difference - the Recycle backup is done at the END of a Set's week, rather than at the beginning. (Page 136 of Retrospect 6 for Mac User's guide, or any other version of the guide at Index entry "Strategies, backup").

 

Doesn't the Manual's scheme wipe out a week's worth of incremental data by doing the Recycle at the end of a tape set's week, rather than at the beginning? Am I missing something?

 

Thanks for you thoughts!

 

- eric

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