backup exec running slow

[nicholab]

My backup exec is running slow any suggestions?

IT is only doing 650mb/sec it was doing 1200mb/sec

[Polski]

Normally a backup slows down due to the tape “shoe shining”. Where a dirty tape has to make several passes to write data.

Check the backup software to see if you have an increase in read / write errors.

How old are the tapes?

Have you cleaned the drive with a cleaning tape?

What OS and what backup software / hardware are you using?