Using an RDX unit with VSphere

[Lansley2000]

Hello all,

I wonder if anyone has experience of using an internal RDX unit within a ML350p Gen8?

I have installed VSphere ESXi5.5 on the ML350p and run a Microsoft SBS 2003 Virtual Machine. I have successfully passed through the RDX unit so it appears in SBS 2003.

The issue I am having is that the speed of backup using NTbackup or the Small Business Server backup is incredibly slow when point to the RDX unit. If I point the backup to use a folder on the local C:\ I get 10x the speed

I realize that SBS 2003 only supports USB2 so that will have an impact but I am getting quoted three days to backup 300Gb of data. Is this reasonable to expect?

Any help greatly appreciated

Simon