We are using a simple backup script to put all of our data onto an external drive bay connected via USB 3 each night. All our script does it this:
wbadmin start backup -backupTarget:E: -include:BACKUP_FOLDERS -quiet
The problem is that the backup will either finish around 6am or not until 1pm or so. It runs a full backup as we rotate the drives out but the issue is not drive specific. Some days the backup will finish nice and early at 6am-ish. Other days it will take until about 1pm or so. It's copying the same amount of data each time. What could I look at to see what is causing the 7 hour variance in backup times?
Thanks!