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Restore space needed WAY more than bak file size


Restore space needed WAY more than bak file size

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peterjbassi
peterjbassi
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I have a 14GB uncompressed .bak file that I'm trying to restore to a new 20GB (20,000MB) database that I just created . When I run the restore it fails with the following error:

There is insufficient free space on disk volume 'F:\' to create the database. The database requires 236339200000 additional free bytes, while only 198730047488 bytes are available.


Unless my math is off, 14GB is less than ~220-230GB. (The stated available bytes left on the disk is correct though). Anybody know what could be causing this? Thanks.

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Bill (DBAOnTheGo)
Bill (DBAOnTheGo)
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My understanding is that even uncompressed backups do not backup "Free space". so where ever this bak came from... check the actual mdf/ndf file sizes. the space used data space can be 14GB and still have 250GB of "free space" that will be restored on .. .well restore.

Please someone correct me if this statement is wrong.

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Bill (DBAOnTheGo)
Bill (DBAOnTheGo)
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http://www.sqlservercentral.com/Forums/Topic777462-169-1.aspx

This is a previous link that has this exact same issue.

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peterjbassi
peterjbassi
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Thanks Bill. That's exactly what I was looking for. Sorry for the repost.

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"Daterbase, taterbase, gatorbase."
Bill (DBAOnTheGo)
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No worries. They can get lost in time. Glad to help ^.^

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Jeff Moden
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As a sidebar, I'm thinking there's something seriously wrong with the database. You're talking about a very small database using almost a quarter of a Terabyte! When you finally get this bugger loaded, look at the recovery model. I'd bet credits to Navy beans that it's in the FULL or Bulk Logged recovery model and that no one has taken a transactional log backup for MONTHS.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
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Although they tell us that they want it real bad, our primary goal is to ensure that we dont actually give it to them that way.
Although change is inevitable, change for the better is not.
Just because you can do something in PowerShell, doesnt mean you should. Wink

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Gazareth
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Jeff Moden (2/11/2013)
As a sidebar, I'm thinking there's something seriously wrong with the database. You're talking about a very small database using almost a quarter of a Terabyte! When you finally get this bugger loaded, look at the recovery model. I'd bet credits to Navy beans that it's in the FULL or Bulk Logged recovery model and that no one has taken a transactional log backup for MONTHS.


I had a similar problem recently - the culprit was an autogrow setting that been set to 1,000... percent. w00t
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