Problem
Network latency causes scrub delays even though local workstation CPU and GPU utilization are low.
Solution
Root Cause / Diagnostic:
Network-attached storage (NAS) operating over high-latency networks or unoptimized SMB protocols suffers from round-trip packet delays during frequent random-read seek requests. Because video scrubbing requires hundreds of rapid micro-seeks, latency stalls the timeline even with ample processing power.
Actionable Fix:
1. Configure SMB protocol settings on the server: enable SMB3, activate SMB Direct (RDMA) if supported, and adjust TCP receive window sizes.
2. Connect editing workstations directly to the NAS via dedicated Cat6a/fiber 10 GbE connections rather than routing through corporate subnets.
3. Perform a network round-trip ping test to confirm latency remains under 0.5 ms between editing clients and storage controllers.
Pro Tip:
Enabling Jumbo Frames (MTU 9000) end-to-end across your 10 GbE switch, NAS, and workstation network adapters significantly reduces packet overhead and eliminates scrubbing lag on shared storage.
Network-attached storage (NAS) operating over high-latency networks or unoptimized SMB protocols suffers from round-trip packet delays during frequent random-read seek requests. Because video scrubbing requires hundreds of rapid micro-seeks, latency stalls the timeline even with ample processing power.
Actionable Fix:
1. Configure SMB protocol settings on the server: enable SMB3, activate SMB Direct (RDMA) if supported, and adjust TCP receive window sizes.
2. Connect editing workstations directly to the NAS via dedicated Cat6a/fiber 10 GbE connections rather than routing through corporate subnets.
3. Perform a network round-trip ping test to confirm latency remains under 0.5 ms between editing clients and storage controllers.
Pro Tip:
Enabling Jumbo Frames (MTU 9000) end-to-end across your 10 GbE switch, NAS, and workstation network adapters significantly reduces packet overhead and eliminates scrubbing lag on shared storage.