The most frequent culprit. Windows Server 2022 has stricter iSCSI timeouts than previous versions. If the iSCSI initiator loses connectivity for more than LinkDownTime (default 15 seconds), the disk may stay online but fail metadata queries.
Few messages in Windows Server 2022 are as deceptively alarming as "Online - Data retrieval failures occurred." You open the Disk Management console (diskmgmt.msc) or check the failover cluster manager, and instead of the comforting "Online (Healthy)" status, you are met with this ambiguous yet critical error.
To the uninitiated, this message suggests the disk is online but corrupt. In reality, it indicates a transient I/O or metadata retrieval problem—the operating system can see the disk, but it cannot successfully read its partition table or volume metadata. The most frequent culprit
This article provides a deep-dive analysis of the causes, diagnostic steps, and proven remediation strategies for this error specifically within Windows Server 2022, including nuances for Storage Spaces Direct (S2D), CSV volumes, and virtualized environments.
In Windows Server 2022, the Disk Management service relies on the Virtual Disk Service (VDS) and the Plug and Play Manager to query disk attributes. When you see Online - Data retrieval failures occurred, the server has successfully: In Windows Server 2022, the Disk Management service
However, it failed to retrieve one or more critical pieces of information, such as:
Key distinction: This is not the same as "Offline" or "Unallocated." The disk is recognized but partially unreadable. The underlying causes are often network-related (iSCSI, SMB), storage fabric issues (Fibre Channel), or driver timeouts. However, it failed to retrieve one or more
A frequent "soft failure" is caused by Security Identifier (SID) mismatches or Permission Drift.
Run the following PowerShell command to filter relevant errors:
Get-WinEvent -LogName System | Where-Object $_.Id -in 129,153,157,505,140 | Format-List
Common Event IDs: