Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/doc/rados/configuration/pool-pg.conf b/doc/rados/configuration/pool-pg.conf
new file mode 100644
index 00000000..0c69d0b9
--- /dev/null
+++ b/doc/rados/configuration/pool-pg.conf
@@ -0,0 +1,20 @@
+[global]
+
+	# By default, Ceph makes 3 replicas of objects. If you want to make four
+	# copies of an object the default value--a primary copy and three replica
+	# copies--reset the default values as shown in 'osd pool default size'.
+	# If you want to allow Ceph to write a lesser number of copies in a degraded
+	# state, set 'osd pool default min size' to a number less than the
+	# 'osd pool default size' value.
+
+	osd pool default size = 3  # Write an object 3 times.
+	osd pool default min size = 2 # Allow writing two copies in a degraded state.
+
+	# Ensure you have a realistic number of placement groups. We recommend
+	# approximately 100 per OSD. E.g., total number of OSDs multiplied by 100
+	# divided by the number of replicas (i.e., osd pool default size). So for
+	# 10 OSDs and osd pool default size = 4, we'd recommend approximately
+	# (100 * 10) / 4 = 250.
+
+	osd pool default pg num = 250
+	osd pool default pgp num = 250