Comment 2 for bug 1475924

Hi Deepinder,

About this comportement there is a very interesting behavior in Ceph about the OSD status.

As described in [0], OSD can have 2 parameter with two status each :
 - in / out
 - up / down

Adding in / out states in addition to up / down could be a way to make the difference between a up and not-ready component that gets ready after a sync period.

Enabling an administrative in / out state could also make operations easier to for "draining" of a component we would like to put in maintenance mode for example.

What do you think ?

Foucault

[0] : http://ceph.com/docs/master/rados/operations/monitoring-osd-pg/