Dell Presicsion 330 Wndows 7 workstation, 3 HD, with SSR 2011 (because of older CPU) and SEP 2013 client (unmanaged) installed.
We have a long historyof successful SSR daily backups completing in < 1 hr.
Yesterday ran SSR restore on C: Last night's scheduled backup started at midnight and was only at 1% after after 8 hrs.
Tack Manager showed ccSvcHst repeatedly running after short bursts of vProSvc action, with each process having almost equal very high I/O count. vProSvc logged 44 min of CPU time, ccSvcHst 30 min of CPU time, at point of aborting backup.
Something related to backup is invoking SEP. The result kills effective backup.
I need, and apprecaiate, your wisdom about cause and fix.