Do you have some spare disks available? You can then image them individually and try out various options using that spare controller.
Do you have other replicas of this data, or do you actually need to recover it?
Hopefully you have spares, but if not, this is the best thing I've found:
To quote from the (sometimes oddly worded) product manual:
"If, due to hardware failure, a hardware volume set or RAID cannot be accessed, or due to data loss your system does not recognize a software volume set or RAID, and you know what hard drives were in it, you may create a Virtual volume set or RAID and process it like a real software volume set or RAID or software volume set or RAID."
[PREACHY]In my opinion, it isn't worth storing data unless you are storing it at least twice, preferably simultaneously.[/PREACHY]