August 16, 20169 yr I'm doing 3 passes of preclear on my first two disks and it just started the post-read phase on the third pass. I just noticed on the Dashboard that my CPU usage bounces around between 80% - 100%. Is this normal? I have an Intel G4400. Also, is there some kind of report generated when preclear finishes, or am I to assume the disks "passed" if the actual preclear didn't fail at some point? EDIT: Just SSHed in and ran top. User and System usage are both low, but idle is effectively at 0% (usually between 0% - 5%). I noticed the IO-wait is very high, is that possibly why unRAID thinks my CPU is being utilized so heavily? It's counting IO-wait as usage? The preclear_disk.sh process itself is showing 0% CPU and 0.1% Memory.
August 16, 20169 yr Yes. Reading/writing a whole diskful of data doesn't use much CPU but it spends hours waiting for I/O.
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