When a tape has still space on it left it's state is Filling. When there is no more space left it is set to Full. Then files stored on the tape will expire according to your policies. These expired files will cause 'gaps' and the % utilised will drop until it reaches the reclamation threshold. During this process the tape will remain Full until it gets reclaimed.
The estimated capacity relflects how many data TSM was able to store on the tape. Your tape drives probably compress the data before it is written to tape. Some data can be more easily compressed than other data. That is why there is a difference. Regards, Alexander On Thursday 19 April 2007 11:52, Angus Macdonald wrote: > Doing some maintenance, I notice that most of my LTO2 storage pool tapes > are designated as full, although their % utilised is sometimes less that > 60%. The estimated capacities also vary from 320GB to over 600GB. I'm not > actually having any problems but how does TSM decide the estimated capacity > of a tape and whether or not it is full?
