I've been having this issue for awhile, support told me to try v6 DSS when it was released back in July...but I didn't have time to check on it then. So here's the issue.
I'm running DSS v5 build 3278 currently with an Adaptec 52445 controller. Controller firmware is 16116. When managing the arrarys using the Adaptec Storage Manager each drive shows in the display in the correct enclosure (see http://www.oswego.edu/~gfuller/asm-good.jpg). This makes everything nice, neat and orderly so when I created logical volumes it makes a little more sense (graphically any way).
Back in July I tested out the DSS v5 build 3518 on a test USB key (per the docs -- test before upgrading your original DOM). Once I did this, ASM no longer shows drives attached to the enclosure properly. They are all just lumped at the bottom of the display (see http://www.oswego.edu/~gfuller/asm-bad.jpg).
I've also tried the trial version of DSS v6 build 3537, with the exact same issue.
I've upgraded my 52445 controller to firmware 17517 and still see the exact same problem with DSS v5 build 3278 and also with DSS v6 build 3537.
I've rebooted to my original production DSS v5 build 3278 running the 17517 adaptec firmware and everything shows up fine in ASM.
Any ideas? Is there an updated Adaptect Agent for DSS that would fix this?