High-concurrency environments report random VM freezes; the ReFS driver on Server 2025 is unstable under “boot storm” I/O.
Symptom Matrix:
CPU: 1% flatline, Status: Unresponsive, Log: Tdica 1007.
Architectural Root Cause:
The ReFS driver deadlocks when attempting block-cloning operations on VHDX handles during massive logon spikes.
Surgical Fix:
Immediate migration of profile containers back to NTFS for Q1 2026 stability.
I/O latency is a user experience killer. [Analyze your storage fabric with a Citrix Health Check]
About the Author: Jabran Malik
Jabran Malik is a Principal Digital Workspace Architect and the Founder of EUC Global. With over 30 years of experience, he designs high-performance VDI platforms for clients worldwide, leveraging deep expertise across the Citrix, VMware, and Microsoft Azure ecosystems. He excels at translating complex business challenges into strategic solutions that enhance productivity and elevate the user experience.
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