Event Details

Product: Microsoft Windows Operating System
Event ID: 302
Source: StorageSpaces-Driver
Version: Windows Server 2016, Windows Server 2012 R2, Windows Server 2012; Windows 10, Windows 8.1, Windows 8
Level: Error
Message: Majority of the pool drives hosting space meta-data for storage space %1 failed a space meta-data update, which caused the storage pool to go in failed state. Return Code: %2


This topic describes how to troubleshoot failures that occurred when writing storage space configuration to physical drives in a Storage Spaces storage pool.


The majority of the pool drives hosting space metadata for a storage space can fail a metadata update for the following reasons:

  • Physical drives might fail requests with device IO errors
  • Insufficient number of physical drives have online storage space metadata
  • Insufficient memory resources


To resolve the problem:

  • If there are missing drives, reconnect the missing drives.
  • Verify physical drives are functional. Replace failed physical drives if necessary.