We are using Symantec BackupExec 12 on a Windows 2k3 Server (Enterprise), backing up a Windows 2k3 (Standard) server containing files and databases. The device we are using is a Quantum Ultrium LTO-4 half-height tape drive.
The databases are on SQL 2000 and take up about 10 GB.
The rest of the files (about 700,000) take up about 100 GB.
Both servers are on the same Gigabit switch.
When the backup runs, the SQL databases are backed up in minutes, with speeds of 4-5 GB/min. The files, on the other hand, take and average of 5 hours and we are only getting 400-500 MB/min of throughput.
What could be the cause?
Where are the files stored? On a SAN or separate fileserver?
I use BE12 as wel and when I perform a local back-up the job rate is 2.5 to 3 GB per minute.
Data stored on a separate machine is slower in the backup and the job rate is about 400-500 Mb.
I think your networkspeed is decreasing your job rate numbers.