Server2003, SSR2011, backup server local disk to the group of fai nas, nas iscsi drive plate, with the server to add a 400 g plate full backup before 2 hours to complete, now suddenly become very slowly, to more than 20 hours, not restart the server, restart the nas storage also not line, just reshipment SSR software, also tried once before this kind of problem, the problem of the memory? Did not use the same to do an incremental backup, backup task will have been parked in the "volume are comparing" state, is to compare the previous backup file, could you tell me what's the solution? I have two 2 t plate, all in one day to finish backup, can before,