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Backing up SSAS Database; Insufficient space Expand / Collapse
Posted Wednesday, November 7, 2012 6:36 AM



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Does anyone know if SQL Server takes into account the size of the backup file it is overwriting in the case of backing up an SSAS database?


SSAS Version: 10.50.2811
Existing backup: SSASDatabase.abf 65.2GB
Free Space on Drive: 99GB
<Backup xmlns="">

This fails with an insufficient space error. To make the job run successfully, I delete the existing backup and run the job from this step. The initial file size before compression now is 117GB! More than double the final result of 65.2GB.

Question 1: Is the XML correct for this? (a developer wrote this and I am not too familiar with doing these backups)
Question 2: Does it not take into account the space of the file being overwritten as free space? This seems probable, given the error. However, I would like to know if this can be verified. (I've googled, but my google foo on this is lacking)

Any help would be appreciated!


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