[pve-devel] [PATCH docs] pveceph: Reducing amount of PGs is possible

Dominic Jäger d.jaeger at proxmox.com
Thu Feb 27 10:25:57 CET 2020


>From Ceph Nautilus onwards reducing the amount of placement groups is possible.

Signed-off-by: Dominic Jäger <d.jaeger at proxmox.com>
---
@Aaron: Thank you for the hint!
@Alwin: Please complain if I understood something wrong here.

 pveceph.adoc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pveceph.adoc b/pveceph.adoc
index 8dc8568..9a53e69 100644
--- a/pveceph.adoc
+++ b/pveceph.adoc
@@ -462,8 +462,9 @@ NOTE: The default number of PGs works for 2-5 disks. Ceph throws a
 
 It is advised to calculate the PG number depending on your setup, you can find
 the formula and the PG calculator footnote:[PG calculator
-https://ceph.com/pgcalc/] online. While PGs can be increased later on, they can
-never be decreased.
+https://ceph.com/pgcalc/] online. From Ceph Nautilus onwards it is possible to
+increase and decrease the number of PGs later footnote:[Placement Groups
+https://docs.ceph.com/docs/nautilus/rados/operations/placement-groups/].
 
 
 You can create pools through command line or on the GUI on each PVE host under
-- 
2.20.1



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