initial code repo

This patch creates initial code repo.

For ceph, luminous stable release will be used for base code,
and next changes and optimization for ceph will be added to it.

For opensds, currently any changes can be upstreamed into original
opensds repo (https://github.com/opensds/opensds), and so stor4nfv
will directly clone opensds code to deploy stor4nfv environment.
And the scripts for deployment based on ceph and opensds will be
put into 'ci' directory.

Change-Id: I46a32218884c75dda2936337604ff03c554648e4
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/ceph/doc/cephfs/upgrading.rst b/src/ceph/doc/cephfs/upgrading.rst
new file mode 100644
index 0000000..7ee3f09
--- /dev/null
+++ b/src/ceph/doc/cephfs/upgrading.rst
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+
+Upgrading pre-Firefly filesystems past Jewel
+============================================
+
+.. tip::
+
+    This advice only applies to users with filesystems
+    created using versions of Ceph older than *Firefly* (0.80).
+    Users creating new filesystems may disregard this advice.
+
+Pre-firefly versions of Ceph used a now-deprecated format
+for storing CephFS directory objects, called TMAPs.  Support
+for reading these in RADOS will be removed after the Jewel
+release of Ceph, so for upgrading CephFS users it is important
+to ensure that any old directory objects have been converted.
+
+After installing Jewel on all your MDS and OSD servers, and restarting
+the services, run the following command:
+
+::
+    
+    cephfs-data-scan tmap_upgrade <metadata pool name>
+
+This only needs to be run once, and it is not necessary to
+stop any other services while it runs.  The command may take some
+time to execute, as it iterates overall objects in your metadata
+pool.  It is safe to continue using your filesystem as normal while
+it executes.  If the command aborts for any reason, it is safe
+to simply run it again.
+
+If you are upgrading a pre-Firefly CephFS filesystem to a newer Ceph version
+than Jewel, you must first upgrade to Jewel and run the ``tmap_upgrade``
+command before completing your upgrade to the latest version.
+