Re: Downsizing a cephfs pool

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Thanks Marc and Burkhard. I think what I am learning is it’s best to copy between filesystems with cpio, if not impossible to do it any other way due to the “fs metadata in first pool” problem.

FWIW, the mimic docs still describe how to create a differently named cluster on the same hardware. But then I see http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-October/021560.html saying that behavior is deprecated and problematic. 

A hard lesson, but no data was lost. I will set up two machines and a new cluster with the larger drives tomorrow.
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