Space usage reporting in Server 2012

[gregmills119]

I have a Server 2012 fileserver VM residing on a Nimble array. The server has a single share on the E drive. When viewed using the Properties window on the server the data stored is 7TB. However, when I use a backup utility to copy this data over to a Qnap it balloons to 13.5TB. Data deduplication is not installed.

Is the 7TB figure the real space required to store this data without any of the Nimble compression?

Could a difference in block size cause this increase in data storage requirements?

Thanks

[rugby0134]

DO you have shadow copy services on? Shadow Copies don't show up in space used, but will be backed up if backup software is not told to ignore them

[gregmills119 · Accepted solution]

It turned out I was backing up multiple copies from a SQL server that was using this server as it's backup target.

Thanks