Storage Spaces Event 306: The attempt to map, or allocate more storage for, the storage space has failed
Event Details
| Product: | Microsoft Windows Operating System |
| Event ID: | 306 |
| Source: | StorageSpaces-Driver |
| Version: | Windows Server 2016, Windows Server 2012 R2, Windows Server 2012; Windows 10, Windows 8.1, Windows 8 |
| Level: | Error |
| Message: | The attempt to map, or allocate more storage for, the storage space %1 has failed. This is because there was a write failure involved in the updating the storage space metadata. Return Code: %2 |
Summary
This topic describes how to troubleshoot storage space allocation failures in a Storage Spaces storage pool..
Causes
The attempt to map, or allocate more storage for the storage space has failed. More physical drives are needed.
Resolutions
To resolve the problem:
- Add more physical drives to the storage pool
- Use Optimize Drives to consolidate data. To start Optimize Drives from Windows Server, on the Server Manager menu bar, click Tools, and then click Defragment and Optimize Drives.
- Delete unused storage spaces