Huge write to disk from ev$xxxx.tmp file

Hey,

has anyone else seen this - i have for the last week have huge write b\sec on disk where temp\tmp files been written to. In excess of 50,000,000.

we have 1 EV server on a physical box all local storage

Windows 2008 R 2

EV  10.0.1.1171

I have moved the temp \tmp file location to non system partition as the box was being crippled.

Storagecrawler.exe is creating the tmp files but not sure why they are creating so much writes to disk.

Ev has been in and running perfectly for 2 years.

Any feedback\insight welcome

Snatcher