Error
Error Code:
ACFS-01018
Oracle Database Error ACFS-01018: Buffer Allocation Failure
Description
This error indicates that the Oracle Automatic Storage Management Cluster File System (ACFS) component failed to allocate a required memory buffer. It typically occurs when ACFS attempts an operation (e.g., mounting, file I/O) but cannot secure the necessary contiguous memory from the operating system.
Error Message
failed to allocate a buffer for number bytes
Known Causes
4 known causesInsufficient System Memory
The server running Oracle ACFS does not have enough available physical RAM or swap space to satisfy the buffer allocation request.
OS Kernel Memory Limits
Operating system kernel parameters (e.g., shared memory limits) are set too low, preventing ACFS from allocating large memory segments, even if physical RAM is available.
ACFS Driver Memory Exhaustion
The internal memory pool managed by the ACFS driver itself has been exhausted due to intensive operations or memory leaks within the ACFS component.
Memory Fragmentation
While total free memory might exist, it is fragmented into small, non-contiguous blocks, making it impossible to allocate a single large buffer as requested by ACFS.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service