On Tue, 12 Aug 2014, Ram Ramesh wrote:
100G). I also took a fresh backup before the reshape and unmounted md0. Would it be faster if I trash the raid5 and create raid6 from scratch instead of reshape? Any guess on how much faster? I typically got 100+M on checkarray cron jobs. It would fire around 1-2AM and finish by 6-7AM on first Sun. Reshape has been running more than a day and has only about 45% done.
Creating a new array would be almost as fast as checkarray, much faster than reshape. Re-shape moves data around where when you create, it just writes parity blocks, so it's a lot faster.
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