From 9ab0fd758a46e4236d2514bb72bc2d3d76bbbf1f Mon Sep 17 00:00:00 2001 From: John Wilkins Date: Mon, 25 Feb 2013 15:28:07 -0800 Subject: [PATCH] doc: Added a small ref section for osd config reference. Signed-off-by: John Wilkins --- doc/rados/configuration/pool-pg.conf | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 doc/rados/configuration/pool-pg.conf diff --git a/doc/rados/configuration/pool-pg.conf b/doc/rados/configuration/pool-pg.conf new file mode 100644 index 0000000000000..6d2844592f5c8 --- /dev/null +++ b/doc/rados/configuration/pool-pg.conf @@ -0,0 +1,20 @@ +[osd] + + # By default, Ceph makes 2 replicas of objects. If you want to make three + # copies of an object the default value--a primary copy and two 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 = 1 # Allow writing one copy 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 = 3, we'd recommend approximately + # (100 * 10) / 3 = 333. + + osd pool default pg num = 333 + osd pool default pgp num = 333 \ No newline at end of file -- 2.39.5