Troubleshooting Slow Backups

Some common issues to look about for Slow backups :

* Are you using compression? If so, is it hardware based, or software based? If it is software based, consider turning it off for now. Try your backups without compression to see what the
speed is. It is likley that your are running into a group of files that are already compressed. NetBackup may be trying to compress a file that is already compressed, and this wil slow it
down.

* Are you backing up a server that has a LOT of small files? This will cause a drop in speed.

* Are you using the allow multiple streams in the policy? If so,turn it off and try again. If not, turn it on and try again.

* Are there other process' that are running on the network at the time these backups are taking place? If so, consider adjusting your schedule.

* Are you setting your drives to multiplex? If so, make sure that you are not setting it too high.

* Is this the only client with this issue?

* Are you using the Open File Option? if so, disable it and test your speed.

* Is this server in more than one policy? If so, are these policies running during the same time window?

* If this is a GBE network you may have a server with a setting problem on the NIC. Some NIC's cannot do the 1000 auto and must be set to 1000 full. Some older NICs cannot handle 1000 full and must be pulled and replaced with ones that can. This solved my issues on four separate systems and may be your issue, otherwise look at switches for defective performance..