HP SureStore 818 backup speed issues

[Darrenrd]

Hi, All
my HP SureStor 818 which I recall is a DLT8000 therefore I should be getting about 6 MB/Sec which equates to about 20 GB/h, however I'm only getting about 5 GB/h .The tape unit is connected to an Adaptec 2944UW controller, perhaps my backup speed is a result of incorrect SCSI settings etc.. What are some of the setting be should verified ? (enable or disable) etc..

Thanks!
Darren