2010 R3 Dedupe directory constantly in use

Currently I'm running into an issue where my Dedupe directory that is constantly in use. Reboot the box, in use, it's been this way through 2 reboots and 4 days causing our backups to fail and other backups to become queued. Is there any way to track what is currently using the Dedupe directory? I see that the spoold task (PureDisk Content Router) is utilizing 1-10% of the CPU and about 5GB of memory so I know it's being used but by what I'd like to know.

Server specs:

E5410x2 (2.33GHz quad cores)

64GB RAM

Dedupe directory 14.9TB RAID10 on a Dell MD100

Thanks