| Event Id | 2021 |
| Source | Srv |
| Description | The server was unable to allocate a work item <number> times in the last <number> seconds. |
| Event Information | According to Microsoft: Cause: 1. The Server service is cannot make up with the demand for network work items that are queued by the network layer of the input/output (IO) stream. 2. System pages are being locked down during transmission. Resolution: According to Microsoft: Try increasing the number of system pages for the server in the registry. Open the Registry Editor. Under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management select SystemPages. From the Edit menu select DWORD. For Data enter 10000. Click OK and exit the Registry Editor. Shut down and restart Windows 2000. This message from newsgroup may help you: -------------------------------------------------------------------------------- This registry key defines the number of system page table entries reserved for mapping I/O buffers and other information into the system address space. Each entry maps a single page. The value 0 indicates that the default number of entries is to be used. According to Microsoft, increasing this number may eliminate the message your are getting. If it is set for the default value 0, you can try by increasing the value to 10000 first then increase if required increase to 20000. -------------------------------------------------------------------------------- 1. For Windows NT. Increase the value of the following registry key to 8192 (Decimal). HKLM\System\CurrentControlSet\Services\LanManServer\Parameters\MaxWorkItems In case if the key does not exist, you have to create MaxWorkItems (type Reg_DWORD). 2. A faulty Network Interface Card (NIC) in server system may cause this problem. Replace the card and try. -------------------------------------------------------------------------------- According to chicagotech: Cause:< |
| Reference Links | How to Troubleshoot Event ID 2021 and Event ID 2022 You Experience Slow File Server Performance and Delays Occur When You Work With Files That Are Located on a File Server MSDN Help |
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