Event Details

Product: Microsoft Windows Operating System
Event ID: 203
Source: StorageSpaces-Driver
Version: Windows Server 2016, Windows Server 2012 R2, Windows Server 2012; Windows 10, Windows 8.1, Windows 8
Level: Error
Message: An IO failure has occurred on Physical drive %1 Return Code: %2

Summary

This topic describes how to troubleshoot IO failures that occurred on physical drives in a Storage Spaces storage pool.

Cause

An IO failure has occurred on a physical drive.

Resolution

To resolve the problem verify that the physical drive is functional. Replace failed physical drives if necessary.