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A very LONG scrub
I manually kicked off my first scrub about four hours ago. I'm running 4x4TB WDC Reds @ 5400 RPM on RAID6, resulting in a 7.27TB volume. These are my present stats, calculated in Excel: % ...
The scrub will speed up a bit once the filesystem portion of the scrub finishes. But it'll never be "fast" using RAID6 on a RN104. RAID5 can offload some parity calculation work to a specialized engine on the CPU, but no such engine exists for RAID6 on the RN104 CPU, and RAID6 is much more computationally intensive than RAID5. You'd probably have a better experience using RAID10 on RN104.
Well, it turns out my calculations were incorrect. To obtain the completion time estimate, I was adding to the current time and not the start time.
Here's the (accurate) latest:
% Complete 85.46%
Start 3/9/2016 16:51:56
Current 3/16/2016 14:18:04
Duration 193:34:57
Completion 3/17/2016 18:26:53
Amazon comes through again. Assuming all goes well with shipping and pickup etc., I expect have my shiny new RN204 in my possession by then.
Does anyone know whether I'll be able to simply swap in my drives and go? Or will I instead have to build a new volume and copy all my files anew? Naturally I'm hoping for the former.
Thanks,
Jeff Bowman
Fairbanks, Alaska
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