Backup exec 2010 R3, Slow differential Backups
A little stage setting first:-
we have Backup exec 2010 R3, running on our backup server (MS Windows server 2008 32bit, 2 intel 3.06Ghz Xeon processors, 2G ram), Full backups transfer rate varies between typically 450-1,800MB/min, to a ESATA connected WD My Book Essential (wdbacw0030hbk-01 3TByte drive).
Unfortunately due to the length of time backups take(full backup off all our servers takes all weekend!), we've elected to do differential backups every weekday overnight.
The BIG problem is the differential backup of our main fileserver is very slow 20-50MB/min. I've had a look at the backup logs and one obvious issue seems to be the very large numbers of folders its backing up, for example:-