If you want to correlate the logical disk information to the physical disks, you can configure System Monitor to include drive letters in addition to the disk number:

1. Use the Registry Editor to navigate to:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Perfdisk\performance.

2. Add a NT4 Instance Names Value Name, a REG_DWORD data type, and set the data value to 1.

NOTE: Some 3rd party parsing routines may stop functioning.