Andy, We believe that the default for MEMORYEFFICIENTBACKUP may be broken. We had several servers that we changed from no specification of MEMORYEFFICIENTBACKUP to MEMORYEFFICIENTBACKUP NO and found that they ran consistently 15 to 25 percent faster. We are using 4.2.1.20 and 4.2.1.26 on 2 different servers and found this. These servers are NT 4 6.0a with 380K and 515K files on them respectively.
