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We have a small 12GB system drive on our Windows 2003 server, and after I freed up a couple GB, it continues to consume hard drive space. I used SpaceSniffer to help isolate the issue, and see that System Volume Information folder has grown from 2.9Gb to 3.9Gb overnight.

It goes up consistently throughout the day. We have SQL Server on the server plus a few other apps like an AV program and an IIS server. I disabled the SQL Server Agents to isolate out that possibility. We noticed the .ci files inside SVI are heavily fragmented although I'm not sure that is it or not. There are a few .ci files that have grown, like, and What could be causing System Volume Information to grow like this.

Edit: I've seen a few suggestions on other posts, to look at Shadow Copying and Sytem Restore, but these are both turned off as far as I know. There is another app called Dialogic, though, which I'm unfamiliar with.

Edit 2: I just noticed Indexing Service is running and using 1.5 Gb in the SVI folder. Is it safe to stop and delete it?

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Verify that it's not shadow copies (as that's what my first guess would be); run vssadmin list shadows. – Shane Madden Dec 29 '11 at 16:05
It returns "No items found that satisfy the query." I earlier checked under the drive properties and confirmed it was disabled. – David Dec 29 '11 at 16:11
this thread may be helpful to… – LotusH Jan 1 '12 at 8:48
up vote 2 down vote accepted

It turned out Indexing Service was consuming a ridiculous amount of space, trying to grow beyond what was available. I removed and recreated Indexing Service Catalogs under Computer Management and freed up space.

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