Slow Network Throughput

Hi Guys,

I'm using and old version, 12.5 with a Tanberg LTO4 HH and the network throughput has dropped by 20% making the jobs run over so I'm not getting a full backup in one 24hr period.  The local server backups are unchanged in speed so the issue must be on the network.  Things I've tried so far are:

Changed scsi cable and terminator from a different working tape drive.

Reinstalled the agent

Restarted the server

Installed a seperate 1Gb switch and moved the backup server and a couple of the targets on to it.

Cleaned the drive.

I've also run the Tanberg diagnostics and the firmware is up to date and throughput in the diag tool is 4000Mb/s + with no errors.

 

Any help appreciated as I'm out of things to try.  I and my collegue can't think of anything on the network that has changed which could have caused this.

 

Thanks,

Stu