How much space do I need for a server backup?

Created by Steve Place, Modified on Fri, Aug 2 at 12:41 PM by Steve Place

There are no hard and fast rules for this, but a good guideline is to have double the hard disk space you need (e.g., if you have 100GB of data, have at least 100GB of space free).

In the absolute worst case, which would be a deletion of every triple in every database, the storage engine would have 2 copies of every piece of data. (These are cleared with a db optimize.)

If you get this error:

java.io.IOException: IO error: Error allocating space to file : /var/opt/stardog/data/[some number].sstError : No space left on device

Your only options are to free up space (typically by deleting old backups) or to allocate more space to your machine.