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De-fragmenting a volume can take a while.......
The process ran overnight for 10.5 hours. This was on a relatively small volume (5TB), single storage pool. approx 2TB of data.Metadata was included in the one pool.
35 000 files were visited and 7500 were defragged.
This was a six seat san in a video production facility that was working with the DV codec.
Frames were being dropped on ingest - after de-frag no dropped frames.