Radi Atanassov

SharePoint MCM, MVP, MCT and owner of OneBit Software

SQL Disk Space Errors in SBS 2003 R2

I was working on a VM and stumbled upon a TEMPDB issue. I was getting disk is full errors…:

C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\DATA\tempdb.mdf: Operating system error 112(There is not enough space on the disk.) encountered.

Could not allocate space for object '<temporary system object: >' in database 'tempdb' because the 'PRIMARY' filegroup is full.

This may occur for other databases as well, or for that matter, other files.

I had a look around and had appropriate disk space, so I new that wasn't the issue. SQL services we're running under a service account, so I started looking around to make sure the service account has enough rights to use large amounts of space. I couldn't expand the TEMPDB size manually in SQL Server Management Studio and Quota's in AD/Group Policy we're not configured, so that wasn't the problem.

If you right-click on the drive where TEMPDB is located, you will see that SBS has quota enabled by default (in my case it was the C: drive and that would have the setting ON by default).

Here's the Quota tab where you could disable it:

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Turning quota management off will allow the service account to use up disk space and enlarge its TEMPDB. This should be only turned off on a development environment or if you really know what you are doing. It is also best practice to relocate the TEMPDB on a different disk for performance reasons.

Hope this helps!

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