NoteHKLM\SYSTEM\CurrentControlSet\Services\PerfDisk\Performance
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 0 | 1 | 0 |
Determines whether instances of the PhysicalDisk performance object displayed in performance tools, such as System Monitor, include the names of logical drives residing on the physical drive.
| Value | Meaning |
|---|---|
| 0 | PhysicalDisk instance names display the drive number and logical drive letters. (New for Windows 2000) |
| 1 | PhysicalDisk instance names display drive number only. (Same as Windows NT 4.0 and earlier) |
For example, if a physical drive (Disk 0) includes three logical disks, C, D, and E then, if the value of this entry is 1, the physical disk instance is represented as 0: C, D, E. If the value of this entry is 0, the same instance is represented as 0.
To make changes to this entry effective, restart the Remote Registry Service or restart Windows 2000.
Note
Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.
Tip
To test this entry on your computer, in System Monitor, click the + button and, in the Performance object box, click PhysicalDisk. Observe the names of instances in the Select instances from list box. Then, add this entry to your registry, set its value to 1, and observe the PhysicalDisk instance names again.