update sources to v12.1.1

[ceph.git] / ceph / doc / rados / operations / placement-groups.rst

diff --git a/ceph/doc/rados/operations/placement-groups.rst b/ceph/doc/rados/operations/placement-groups.rst
index 98e13f8608b6a861e9d6a9633181300117dc1fb9..d822373dd168b0317be9063c98bc71bac61c4c60 100644 (file)
--- a/ceph/doc/rados/operations/placement-groups.rst
+++ b/ceph/doc/rados/operations/placement-groups.rst
@@ -296,6 +296,9 @@ resources. However, if 1,000 pools were created with 512 placement
 groups each, the OSDs will handle ~50,000 placement groups each and it
 would require significantly more resources and time for peering.
 
+You may find the `PGCalc`_ tool helpful.
+
+
 .. _setting the number of placement groups:
 
 Set the Number of Placement Groups