- Notes, cautions, and warnings
- Introduction
- Terminology
- Hardware best practices
- Networking best practices
- Windows Server 2012 R2 best practices
- Microsoft Storage Spaces best practices
- Cluster best practices
- Scale-Out File Server best practices
- Converged best practices
- Getting help
Dell Storage with Microsoft Storage Spaces Best Practices Guide
UNMAP command
Windows Server 2012 R2 periodically issues UNMAP commands to SSDs to optimize SSD storage disk space. However, SAS SSDs typically optimize automatically without being prompted by the OS. Dell recommends disabling UNMAP from being issued by the OS as this may result in more latency when processing these commands.
Run the following PowerShell command to disable UNMAP.
Fsutil behavior set disabledeletenotify 1
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