Command should be "ceph osd dump | grep min_compat_client"
Signed-off-by: Osama Elswah <osama.ibrahim.89@gmail.com>
If possible, we recommend that you set the oldest allowed client to `hammer`
or later. You can tell what the current oldest allowed client is with::
- ceph osd dump | min_compat_client
+ ceph osd dump | grep min_compat_client
If the current value is older than hammer, you can tell whether it
is safe to make this change by verifying that there are no clients