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-rw-r--r--doc/cephfs/cephfs-mirroring.rst11
1 files changed, 10 insertions, 1 deletions
diff --git a/doc/cephfs/cephfs-mirroring.rst b/doc/cephfs/cephfs-mirroring.rst
index 1a157548281..35cef840558 100644
--- a/doc/cephfs/cephfs-mirroring.rst
+++ b/doc/cephfs/cephfs-mirroring.rst
@@ -120,7 +120,9 @@ system, run a command of the following form:
.. note:: "Mirroring module" commands are prefixed with ``fs snapshot mirror``.
This distinguishes them from "monitor commands", which are prefixed with ``fs
- mirror``. Be sure (in this context) to use module commands.
+ mirror``. Enabling mirroring by using monitor commands will result in the mirror daemon
+ entering the "failed" state due to the absence of the `cephfs_mirror` index object.
+ So be sure (in this context) to use module commands.
To disable mirroring for a given file system, run a command of the following form:
@@ -258,6 +260,13 @@ e.g.::
.. _cephfs_mirroring_mirroring_status:
+Snapshot Mirroring
+------------------
+
+To initiate snapshot mirroring, create a snapshot of the configured directory in the primary cluster::
+
+ $ mkdir -p /d0/d1/d2/.snap/snap1
+
Mirroring Status
----------------