Intel raid, find the failing (but not failed) drive?

Question

One of my two Seagate drives is failing, I get intermittent system 'hangs', drive clicking, and the following error in event viewer:
Quote
"The device, \Device\Ide\iaStor0, did not respond within the timeout period.
When I built the system I created two volumes from my two hard drives.  The first volume is a Raid 1 mirror set for my root drive.  The  second volume is a raid 0 stripe for my non-important stuff.  The two volumes are named "Root_Mirror" and "Data_Stripe"
Here's the problem, How do I know which drive is on its way out?  I believe the event viewer error is complaining about the mirrored volume set (iaStor0 = "Root_Mirror" volume?), but how do I prove this?  (I am correct in thinking that WinXP talks to the Intel raid controller, the raid controller talks to the hard drives.  Consequently WinXP can only report errors about the raid volume, not the underlying physical hardware.
I have a strong background in unix (Sun Solaris) disk and volume management.  If this was a work machine, I'd run an "iostat -En" look at the error count for each device, then determine which lun was having problems.  Once I know which lun is in trouble, I'd run a health check on the lun via the array management software (RM6 or whatever).  I don't see these tools in WinXP or the Intel Matrix driver... 
Here is a system report from the Intel Matrix storage console if it helps:
Quote
System Information
Kit Installed: 6.0.0.1022
Kit Install History: 6.0.0.1022
Shell Version: 6.0.0.1022
OS Name: Microsoft Windows XP Professional
OS Version: 5.1.2600 Service Pack 2 Build 2600
System Name: C2D6600
System Manufacturer: MICRO-STAR INT'L
System Model: MS-7238
Processor: Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz
BIOS Version/Date: American Megatrends Inc. V1.2, 11/08/2006
Language: ENU
Intel(R) RAID Technology
Intel RAID Controller: Intel(R) ICH8R/DO/DH SATA RAID Controller
Number of Serial ATA ports: 6
RAID Option ROM Version: 6.1.0.1002
Driver Version: 6.0.0.1022
RAID Plug-In Version: 6.0.0.1022
Language Resource Version of the RAID Plug-In: 6.0.0.1022
Create Volume Wizard Version: 6.0.0.1022
Language Resource Version of the Create Volume Wizard: 6.0.0.1022
Create Volume from Existing Hard Drive Wizard Version: 6.0.0.1022
Language Resource Version of the Create Volume from Existing Hard Drive Wizard: 6.0.0.1022
Modify Volume Wizard Version: 6.0.0.1022
Language Resource Version of the Modify Volume Wizard: 6.0.0.1022
Delete Volume Wizard Version: 6.0.0.1022
Language Resource Version of the Delete Volume Wizard: 6.0.0.1022
ISDI Library Version: 6.0.0.1022
Event Monitor User Notification Tool Version: 6.0.0.1022
Language Resource Version of the Event Monitor User Notification Tool: 6.0.0.1022
Event Monitor Version: 6.0.0.1022
Array_0000
Status: No active migration(s)
Hard Drive Write Cache Enabled: Yes
Size: 596.1 GB
Free Space: 0 GB
Number of Hard Drives: 2
Hard Drive Member 1: ST3320620AS
Hard Drive Member 2: ST3320620AS
Number of Volumes: 2
Volume Member 1: Root_Mirror
Volume Member 2: Data_Stripe
Root_Mirror
Status: Normal
System Volume: Yes
Volume Write-Back Cache Enabled: Yes
RAID Level: RAID 1 (mirroring)
Size: 100 GB
Number of Hard Drives: 2
Hard Drive Member 1: ST3320620AS
Hard Drive Member 2: ST3320620AS
Parent Array: Array_0000
Data_Stripe
Status: Normal
System Volume: No
Volume Write-Back Cache Enabled: Yes
RAID Level: RAID 0 (striping)
Strip Size: 128 KB
Size: 396.1 GB
Number of Hard Drives: 2
Hard Drive Member 1: ST3320620AS
Hard Drive Member 2: ST3320620AS
Parent Array: Array_0000
Hard Drive 0
Usage: Array member
Status: Normal
Device Port: 0
Device Port Location: Internal
Current Serial ATA Transfer Mode: Generation 1
Model: ST3320620AS
Serial Number: 5QF1FGRZ
Firmware: 3.AAE
Native Command Queuing Support: Yes
Hard Drive Write Cache Enabled: Yes
Size: 298 GB
Number of Volumes: 2
Volume Member 1: Root_Mirror
Volume Member 2: Data_Stripe
Parent Array: Array_0000
Hard Drive 1
Usage: Array member
Status: Normal
Device Port: 1
Device Port Location: Internal
Current Serial ATA Transfer Mode: Generation 1
Model: ST3320620AS
Serial Number: 5QF1G7GE
Firmware: 3.AAE
Native Command Queuing Support: Yes
Hard Drive Write Cache Enabled: Yes
Size: 298 GB
Number of Volumes: 2
Volume Member 1: Root_Mirror
Volume Member 2: Data_Stripe
Parent Array: Array_0000
Unused Port 0
Device Port: 2
Device Port Location: Internal
Unused Port 1
Device Port: 3
Device Port Location: Internal
Unused Port 2
Device Port: 4
Device Port Location: Internal
Unused Port 3
Device Port: 5
Device Port Location: Internal

Answer 1

Well, I found a way to identify a failing drive, but it is not pretty..
download Seagate's "Seatools"
burn Seatools to bootable cd
go into bios / Integrated peripherals / on-chip ATA devices / change from "raid" to "ide"
F11 boot to cdrom
run Seatools quick check to almost instantly identify the failing drive.
run Seatools extended test to find a whole SLEW of failed sectors   :shocking:
reboot back into bios, Integrated peripherals / on-chip ATA devices / change back to "raid" (pray this won't blow away your data, which it didn't but you don't know that until you do it once 
setup RMA refund thru Newegg, order replacement drive, and hope new drive makes it before old drive goes belly up.
while patiently waiting for new drive, sit in amazement that the Intel matrix driver ignores all the errors that Seatools found in a matter of seconds..
Here's a question.  Should I be pissed that the Intel raid controller isn't reporting a bunch of errors, or should I be excited that the Intel raid contorller can keep a raid 0 stripe functioning with a clearly failing disk drive. (is it a bug or a feature????)
{sigh}