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STATUS_INSUFF_SERVER_RESOURCES
The remote server cannot allocate resources for this request
This status is returned by the server side of a network operation when it cannot obtain the memory, work item, connection state, file object, or another bounded resource needed to continue. It is not equivalent to a client-side out-of-memory error, and the short message does not identify the exhausted pool.
Correlate the failure with server counters and the command being processed. A burst that clears after load falls may indicate pressure; a steadily worsening condition can indicate leaked handles, requests, or kernel memory. Blind client retries can amplify the resource shortage.
What to inspect
- Capture the SMB or transport command and server timestamp.
- Inspect server memory, handles, sessions, work queues, and pool usage.
- Use bounded backoff instead of immediate parallel retries.
References
- Microsoft Open Specifications: SMB error classes and codes
- Microsoft Open Specifications: NTSTATUS values
- Microsoft Sysinternals: Handle
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