[sheepdog] [PATCH 7/11] Doc. "Sheepdog Basic" add chapter "monitor cluster"

[Valerio Pachera]

Signed-off-by: Valerio Pachera <sirio81 at gmail.com>
---
 doc/monitor_cluster.rst |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 doc/monitor_cluster.rst

diff --git a/doc/monitor_cluster.rst b/doc/monitor_cluster.rst
new file mode 100644
index 0000000..5270928
--- /dev/null
+++ b/doc/monitor_cluster.rst
@@ -0,0 +1,18 @@
+Monitor Cluster Usage
+=====================
+
+To know now how much space we are using and how much space is free.
+
+::
+
+    # collie node info
+    Id      Size    Used    Avail   Use%
+    0      55 GB   2.6 GB  52 GB     4%
+    1      55 GB   2.7 GB  52 GB     4%
+    2      55 GB   3.2 GB  51 GB     5%
+    3      55 GB   2.9 GB  52 GB     5%
+    Total   218 GB  11 GB   207 GB    5%
+
+    Total virtual image size        10 GB
+
+It is very important not to exceed the total space of a host.
-- 
1.7.10.4