Very solid advice here - that’s the beauty of Ceph community. Just adding to what Anthony mentioned: a reweight from 1 to 0.2 (and back) is quite extreme and the cluster won’t like it. We never go above increments/decrements of 0.02-0.04. If you have to go from 1 to 0.98 and then to 0.96 and so on leaving enough time for the cluster to settle in between. How did backfilling look when changing? Did you see a decrease in backfills after reverting back to 1?
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