I have a Dell R510 with one (Quad core E5506) proc, 24GB mem and 16TB usable space from a RAID 6 configuration.
I have a Symantec Backup Exec 2012 install with dedup, library expansion, Hyper-V, file server and application options. I have roughly 30 total jobs (I think this includes the verify jobs) that are executing using the client side dedup. I had a recent case with Symantec tech support regarding the direct access for client side dedup which is working properly now. Usually full backups of a server take about 15'ish minutes. My two Hyper-V hosts take about an hour to 1 1/2 hours, respectively. None of the jobs step on each other or vie for run-time. The dedup folder is sitting in an 8TB parition and reporting 6.04 TB free and allows 2 concurrent operations.
I am asking this question regarding the spad.exe process. I know it is, but not necessarily what it does for dedup. It is always at 25% proc utilization. Is this normal or should it increase/decrease its utilization based on the backups or scavenging or something else being done? It just seems odd that it always seems to be at 25%. I am concerned that something is not configured correctly.