Why is Ceph reducing the number of PGs for a pool after the correct number is calculated using the 'pgcalc' tool?

Solution Verified - Updated 2022-11-10T07:16:34+00:00 -

Issue

It has been observed that Ceph is reducing the number of PGs for a pool, despite the correct number of PGs has been determined in the pgcalc [1] tool. What is causing this behaviour?

[1] https://access.redhat.com/labs/cephpgc/manual/

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