README: add a FAQ

Signed-off-by: Sébastien Han <seb@redhat.com>

diff --git a/README.md b/README.md
index 20974e0b2806c5c50b636b31563fd928430c5dd8..b55063d267beaedf37a085a852647059feccb710 100644 (file)
--- a/README.md
+++ b/README.md
@@ -101,6 +101,11 @@ osd scrub chunk max | 5 | 25
 
 If you want to use them, just use the `ceph_conf_overrides` variable as explained above.
 
+## FAQ
+
+1. I want to have OSD numbers seriallized between hosts, so the first OSD node has osd 1,2,3 and the second has osd 4,5,6 etc. How can I do this?
+Simply add `serial: 1` after the osd section `- hosts: osds` in your `site.yml` file.
+
 ## Setup with Vagrant using virtualbox provider
 
 * Create vagrant_variables.yml