jsg1220 Posted February 26, 2008 Report Share Posted February 26, 2008 My older AIT-2 USB drive went bad so I decided to upgrade to a new Sony AIT-e1040s (AIT-5 SCSI LVD/SE external drive) and got an upgrade to Retrospect 7.5 to run it. I used an Adaptec 29160 SCSI card and cable for the interface. Running on Win XP Pro SP2 and tested on both Xeon 3 Ghz and Quad Core 2.66 GHz systems so far. All drivers check OK in device manager and it works without any errors, but runs much slower than older USB drive. USB would transfer backups to tape at around 400 MB/min from a gigabyte NAS but the new drive gets at most 64 MB/min. Backups direct to tape run around 120 MB/min. According to the tape drive specs, it should run over 40 MB/sec. Just to check, I ran a backup with the standard build-in XP backup program and it ran at about the same 120 MB/min. Am I missing something here or do these drives and SCSI cards have problems? I've used SCSI before without problems and it usually works fine as long as you use good cables and terminators. I'm not sure how to proceed as this could be either software or hardware. Quote Link to comment Share on other sites More sharing options...
jetdog9 Posted April 2, 2008 Report Share Posted April 2, 2008 That is definitely slower than expected. I would suggest checking the Adaptec card as the possible culprit. Both firmware and drivers should be checked. Try getting drivers directly from Adaptec's site, not just Windows Update, etc. Quote Link to comment Share on other sites More sharing options...
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