| Event Id | 2001 |
| Source | perfdisk |
| Description | Unable to read the disk performance information from the system. Disk performance counters must be enabled for at least one physical disk or logical volume in order for these counters to appear. Disk performance counters can be enabled by using the Hardware Device Manager property pages. Status code returned is data DWORD 0. |
| Event Information | CAUSE: 1. These events are logged because when you initially create a performance query, the performance library checks the availability of all counters that are listed in the registry. If a listed counter is not available, an event log entry is logged. 2. When using Compaq Insight Management agents, in a cluster environment, you might see many events like this if you reconfigured SAN storage devices online (adding/removing). To solve the problem, just restart the Insight Management agents. RESOLUTION: To prevent the entries from being logged, use either of the following methods: Method 1. Enable the Disk Performance Counters: Run the diskperf -y command from a command prompt, and then press ENTER. Method 2. Prevent the performance library from checking the disk counters by modifying a certain registry key value. You can set this value programmatically through your performance data collection program or statically through by using Regedit or Regedit32. If you set this value statically in the registry, information from the counters will not be available unless you change the key value to 0 or delete the key. To set the key: 1. Click Start, click Run, type regedit, and then click OK. 2. Locate and click the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PerfDisk\Performance 3. Create a new registry DWORD value: On the Edit menu, click New, and then click DWORD. 4. Type Disable Performance Counters in the Name box. 5. Right-click the Value icon, click Modify, and then type 1 in the value Data box. 6. Quit Registry Editor. |
| Reference Links | Application Log Events Generated When You Start Performance Counter Query |
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