doc/rados: edit balancer.rst

Edit doc/rados/operations/balancer.rst. Follow up on matters raised in
https://github.com/ceph/ceph/pull/63530. Make the English clearer.

Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 7bf5196e7037a89e6a04c770241ef25b53d2a809)

diff --git a/doc/rados/operations/balancer.rst b/doc/rados/operations/balancer.rst
index c531f6c889bd7cd9c017594e505e159a5d851080..528fd3cb65a69ffb4b0348191ab229c8f0464a28 100644 (file)
--- a/doc/rados/operations/balancer.rst
+++ b/doc/rados/operations/balancer.rst
@@ -56,11 +56,11 @@ of the following form:
 A larger value may increase the speed of cluster balancing / convergence
 at the potential cost of greater impact on client operations.
 
-There is a separate setting for how uniform the distribution of PGs
-must be for the module to consider adequately balanced.
-At the time of writing this value defaults to ``5``, which means that
-if a given OSD's PG replicas vary by five or fewer above or below the
-cluster's average, it will be considered sufficiently balanced.
+There is a separate setting for how uniform the distribution of PGs must be for
+the module to consider the cluster adequately balanced.  At the time of writing
+(June 2025), this value defaults to ``5``, which means that if a given OSD's PG
+replicas vary by five or fewer above or below the cluster's average, it will be
+considered sufficiently balanced.
 
 This value of PG replicas / shards (as distinct from logical PGs) is reported
 by the ``ceph osd df`` command under the ``PGS`` column and the variance