Peter Wood wrote:
Currently the pool is about 20% full:
# zpool list pool01
NAME SIZE ALLOC FREE EXPANDSZ CAP DEDUP HEALTH ALTROOT
pool01 65.2T 15.4T 49.9T - 23% 1.00x ONLINE -
So you will be about 15% full after adding a new vdev.
Unless you are likely to get too close to filling the enlarged pool, you
will probably be OK performance wise. The old data access times will be
no worse, the new data better.
If you can spread some of your old data around after added the new vdev,
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