So I have the Thermaltake BlacX Duet, a dual HDD docking bay. It supports USB and eSATA and USB of course works fine, because it has built in port replication/multiplication. But when I try to use eSATA, only one drive shows up. If I pop the slot 1 HDD out and rescan the disks, it picks up the slot 2 HDD just fine. At first I figured it was a hardware limitation (not supported by my chipset) and I just used USB most of the time, unless I had large files to transfer, but when I installed Ubuntu 11.04b2 over the weekend, it happily detected and mounted both drives via eSATA, so it's obviously not a hardware issue.
I was wondering if anyone had any tips on how I might get Windows 7 to recognize both drives - i.e. drivers or updates or some sort of workaround. Right now the drives do reuse drive letters, so I assigned them permanent drive letters to make sure there was no overlap and that made no difference. I assume it's just an unsupported feature, but since it seems to be software-based and not hardware-based, there should be a workaround. Any ideas?
Thanks!!!
Edit for additional information: I am running an HP dv5-2035dx with an AMD Turion II P520 Dual Core Processor (2.30 GHz), 4GB of DDR3 RAM @ 1066MHz, and an Intel X25-M 80GB SSD. I am running Windows 7 Home Premium.