Possible to identify individual drives in an MDD G4?

Question

I'd like to take out two of the internal HDs from my MDD G4 to use them in external FW enclosures I bought at a good price to use them on the MacBook and another machine.
Three of the internal drives are nominally 160 GB and identical to each other, the other one is a nominally 380 GB unit.
Is there a way of telling whether the larger drive is in the top bay or the rear bay without taking out both cages?  Can the System Profiler help me at all?
ATA:
ATA Bus:
ST3160023A:
  Capacity:    149.05 GB
  Model:    ST3160023A
  Revision:    3.06
  Serial Number:    3JS2END7
  Removable Media:    No
  Detachable Drive:    No
  BSD Name:    disk1
  Protocol:    ATA
  Unit Number:    0
  Socket Type:    Internal
  OS9 Drivers:    Yes
  S.M.A.R.T. status:    Not Supported
  Volumes:
PhSh_Scratch_1:
  Capacity:    149.05 GB
  Available:    148.99 GB
  Writable:    Yes
  File System:    HFS+
  BSD Name:    disk1s9
  Mount Point:    /Volumes/PhSh_Scratch_1
ST3400832A:
  Capacity:    372.61 GB
  Model:    ST3400832A
  Revision:    3.03
  Serial Number:    5NF0K62P
  Removable Media:    No
  Detachable Drive:    No
  BSD Name:    disk2
  Protocol:    ATA
  Unit Number:    1
  Socket Type:    Internal
  OS9 Drivers:    Yes
  S.M.A.R.T. status:    Verified
  Volumes:
Macintosh HD:
  Capacity:    372.49 GB
  Available:    278.06 GB
  Writable:    Yes
  File System:    Journaled HFS+
  BSD Name:    disk2s10
  Mount Point:    /
====
<snip> 2 OPTICAL DRIVES <snip>
====
ATA Bus:
ST3160023A:
  Capacity:    149.05 GB
  Model:    ST3160023A
  Revision:    3.06
  Serial Number:    3JS2DLMJ
  Removable Media:    No
  Detachable Drive:    No
  BSD Name:    disk0
  Protocol:    ATA
  Unit Number:    0
  Socket Type:    Internal
  OS9 Drivers:    Yes
  S.M.A.R.T. status:    Not Supported
  Volumes:
PhSh_Scratch_2:
  Capacity:    149.05 GB
  Available:    148.99 GB
  Writable:    Yes
  File System:    HFS+
  BSD Name:    disk0s9
  Mount Point:    /Volumes/PhSh_Scratch_2
ST3160023A:
  Capacity:    149.05 GB
  Model:    ST3160023A
  Revision:    3.06
  Serial Number:    3JS213MB
  Removable Media:    No
  Detachable Drive:    No
  BSD Name:    disk3
  Protocol:    ATA
  Unit Number:    1
  Socket Type:    Internal
  OS9 Drivers:    Yes
  S.M.A.R.T. status:    Not Supported
  Volumes:
PhSh_Scratch_3:
  Capacity:    49.88 GB
  Available:    49.84 GB
  Writable:    Yes
  File System:    HFS+
  BSD Name:    disk3s10
  Mount Point:    /Volumes/PhSh_Scratch_3
Flex_1_Tiger:
  Capacity:    9.88 GB
  Available:    4.16 GB
  Writable:    Yes
  File System:    Journaled HFS+
  BSD Name:    disk3s12
  Mount Point:    /Volumes/Flex_1_Tiger
MacOS_9_straight:
  Capacity:    19.88 GB
  Available:    14.32 GB
  Writable:    Yes
  File System:    Journaled HFS+
  BSD Name:    disk3s14
  Mount Point:    /Volumes/MacOS_9_straight
Panther_w_bkp_old:
  Capacity:    68.92 GB
  Available:    36.03 GB
  Writable:    Yes
  File System:    Journaled HFS+
  BSD Name:    disk3s16
  Mount Point:    /Volumes/Panther_w_bkp_old
I know it's not that much of a job, but as clumsy as I am with manual labor, I'd rather just do it once. 
Thanks in advance.

Answer 1

pincrete wrote:
 …pulling out the leads one at a time will probably cause a freeze or crash, especially of course if you pull out the active system…
LOL !    Give me some credit, dude!  I've been using Macs since the Mac Plus in the mid 1980s and computers since the early 1960s (Siemens and IBM behemoths).  That's pretty much half a century.  I'm not that clueless. 
Thank you for the courtesy of your reply, though.  Much appreciated, even if it made me laugh. 
Here's my update:
Don't worry. I powered the machine entirely off, pulled the power cable from the back of the machine, and then humbly followed BDAqua's advice.  I disconnected the ribbon cable on the rear bay first, and lo and behold, when I booted the machine back up again that one turned out to be the one with the two drives I wanted.  I pulled them out, replaced the rear-bay sled back into the G4 and powered it back on to test it.  The computer still works flawlessly with the remaining two internal 160 GB hard drives.
I put the 160 GB drive in a FireWire enclosure and it's already functioning as the dedicated primary scratch disk drive for Photoshop 13 ("CS6") on the MacBook.  Made a HUGE difference in the performance of Photoshop on my limited MacBook (not Pro).
The other enclosure turned out to be USB2 only (no FireWire ), but I put the 400 Gb hard drive there and it works just fine too.  I'll get a simple USB2 hub and use it as Time Machine disk on the same MacBook.  For the time being, I'm testing it attached to my G5 Quad, because I ran out of USB ports, as one is feeding a secondary external monitor through a USB adapter/video card, and the other one is used by the keyboard/mouse combo.  Everything checks out OK.  The primary external monitor is being driven by the MacBook's own built-in monitor port.
I doubt there are many users out there running Photoshop 13 on a plain MacBook that's also driving two 22" CRT monitors. 
My thanks again to BDAqua.