This was a brief presentation talking about the current state of affairs on the GlusterFS Cinder Integration in the GlusterNight Paris event organised by Red Hat for GlusterFS community members, as part of the Openstack Paris Nov. 2014

1. Cinder – GlusterFS Integration
GlusterNight@openstack-paris
Deepak C Shetty
deepakcs@redhat.com
IRC: deepakcs

2. What is GlusterFS
Openstack Paris Summit 2
● Unified, Distributed file system
– It aggregates local storage of many servers into a single logical volume,
providing a global unified namespace across them
– You can extend the volume just by adding more servers, providing a out of the box
scale out architecture
– Completely user space & stackable via translators
– Works on top of commodity hardware
– Multi-protocol access (glusterfs, nfs, cifs)
– Multi-interface access (fuse, libgfapi)
● Features
– Distributed volume
– Replicated volume
– Striped volume
– Distributed-Replicated and many more
– Sync and Asyn replication
– Openstack integration with Nova, Cinder, Manila, Swift and Glance

3. GlusterFS overview
Unified Namespace
Openstack Paris Summit 3
Nova, Cinder,
Glance, Swift,
Manila
Nova

4. Cinder – GlusterFS
Openstack Paris Summit 4
● Available upstream
● 1 Cinder volume == 1 GlusterFS file
● Support raw and qcow2 format cinder volumes
● GlusterFS backed cinder volumes can be attached to Nova
instances in 2 ways
– Fuse
– Libgfapi
● Supports most of the Cinder APIs (including libgfapi based
snapshots)
● cinder.conf - glusterfs_shares_config lists the glusterfs
volumes to use in hostname:/volname format
– More info on configuring Cinder w/ GlusterFS is available @
http://docs.openstack.org/admin-guide-cloud/content/glusterfs_backend.html

5. Cinder – GlusterFS contd.
Openstack Paris Summit 5
● TODOs
– Manage/Unmanage support – WIP
– Cinder - GlusterFS upstream CI – WIP
– backup/restore for qcow2 and disks with
snaps
– Support for cinder volume replication
– Perf improvements - WIP

6. Cinder – GlusterFS contd.
Openstack Paris Summit 5
● TODOs
– Manage/Unmanage support – WIP
– Cinder - GlusterFS upstream CI – WIP
– backup/restore for qcow2 and disks with
snaps
– Support for cinder volume replication
– Perf improvements - WIP