Is it normal for external hard disk write speed to slow to ~5MB/s when a hard drive is almost full? I have multiple external hard drives almost at capaticy and when I write to it Finder CPU usage hits 90%. Does this sound normal? When the harddrive is empty i am getting 80MB/s.
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High Finder CPU when external harddrive full
- Thread starter spetykowski
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The external hard drives are probably fragmented, which slows down write speeds as the drive approaches capacity. Easy solution: leave a bit of breathing space.