The document discusses deploying and managing the distributed file system Gluster using the virtualization management platform oVirt. It provides an overview of oVirt and Gluster, their integration, and features supported. Gluster management in oVirt allows creating and managing Gluster clusters, volumes, bricks and options. Upcoming releases will include a Gluster dashboard, disk management for brick creation, snapshot support, and geo-replication. The presentation aims to demonstrate how oVirt can be used to deploy and administer Gluster environments.

1. Deploying and Managing Gluster
using oVirt
Ramesh N
Red Hat
FUDCon Pune 2015
June 26-28

2. 06/26/15 2Fudcon Pune 2015
Agenda
● About oVirt and Gluster
● Ovirt Gluster Integration
● Gluster Features
● Managing Gluster using oVirt
● Upcoming Gluster features in oVirt
● Q & A

3. 06/26/15 3Fudcon Pune 2015
Ovirt
oVirt is a virtualizationoVirt is a virtualization
management platform tomanagement platform to
manage virtual machines,manage virtual machines,
storage and networksstorage and networks
●
Engine (ovirt-engine)Engine (ovirt-engine)
Manages the oVirt hosts, andManages the oVirt hosts, and
allows system administrators toallows system administrators to
create and deploy new Vms. It alsocreate and deploy new Vms. It also
supports Gluster management.supports Gluster management.
●
Host Agent (VDSM)Host Agent (VDSM)
oVirt engine communicates withoVirt engine communicates with
VDSM to manage the VMs,VDSM to manage the VMs,
storages and networksstorages and networks
Clusters
Storage Server
StorageEngine
Storage Server
Cluster Hosts

4. 06/26/15 4Fudcon Pune 2015
Ovirt Architecture

5. 06/26/15 5Fudcon Pune 2015
Gluster
● GlusterFS is a general purpose scale-out distributed file-
system supporting thousands of clients
● Aggregates storage exports over network interconnect to
provide a single unified namespace
● File-system
completely in
userspace, runs on
commodity
hardware
● Layered on disk file
systems that
support extended
attributes

6. 06/26/15 6Fudcon Pune 2015
oVirt Gluster Integration
● Introduced in oVirt 3.1
● Supports Three ApplicationMode configuration
– 1 → Virtualization only
– 2 → Gluster only
– 255 → Virtualization + Gluster (default)
● Enable Gluster at cluster level
● New entities (Volumes, Bricks, Volume Options)
● VDSM verbs for gluster management
● vdsm-gluster plug-in

7. 06/26/15 7Fudcon Pune 2015
Features supported in Ovirt
● Cluster Management
● Create Gluster Cluster
● Add / Remove Storage Servers
● Delete Cluster
● Volume Management
● Create / Remove Volume
● Start / Stop Volume
● Add / Remove (with migration) bricks
● Re-balancing Volume
● Profiling
● Managing hooks
http://www.ovirt.org/Features/Gluster_Support

8. 06/26/15 8Fudcon Pune 2015
Managing Gluster in oVirt 1/2
● Gluster Service support
is located in the Cluster
properties
● Deploy Hosts with
GlusterFS Server
support
● Enable Bricks and
Volume Management
from oVirt WebAdmin
and REST-API

9. 06/26/15 9Fudcon Pune 2015
Managing Gluster in oVirt 2/2
● It is possible to create and manage Gluster Volumes
from WebAdmin and using the REST-API
● Volume Profiling
● Volume Capacity Monitoring
● Re-balancing Volume

10. 06/26/15 10Fudcon Pune 2015
Upcoming Features
in oVirt 3.6

11. 06/26/15 11Fudcon Pune 2015
Gluster Dashboard
● UI Add-on developed using Ovirt UI Plugins and REST API
● Default landing page
● Gives an overview of entities in the system
● Focus on the entities which needs admin intervention

12. 06/26/15 12Fudcon Pune 2015
Gluster Dashboard

13. 06/26/15 13Fudcon Pune 2015
Disk Management
● Identify available disks and storage devices
● Create new bricks by creating new Logical Volumes (Thin
LVs)
● Format the logical volume with the XFS file-system and
manage fstab entries
http://www.ovirt.org/Features/GlusterHostDiskManagement

14. 06/26/15 14Fudcon Pune 2015
Brick Creation

15. 06/26/15 15Fudcon Pune 2015
Gluster Snapshot
● Supports Volume Snapshot related operations
● Snapshot configurations at Volume level as well as
Cluster level
● Supports Snapshot scheduling to take repeated
snapshots based on the time interval

16. 06/26/15 16Fudcon Pune 2015
Geo Replication
● Enables creation and maintenance of Geo-
Replication sessions across clusters
http://www.ovirt.org/Features/Gluster_Geo_Replication

17. 06/26/15 17Fudcon Pune 2015
Storage Network Selection
● Currently, Gluster nodes
use the same network for
both Management and
Gluster traffic (possibly
causing traffic chokes)
● The proposed solution is
to separate out the
GlusterFS traffic and
management traffic
VMsandStorageEngine Direct-attached storage (SAS/SATA)
http://www.ovirt.org/Features/Select_Network_For_Gluster

18. Jun 26, 2015 Fudcon Pune 2015
Q&A

19. 06/26/15 19Fudcon Pune 2015
References
devel@ovirt.org
#ovirt irc.oftc.net
Links:
http://www.gluster.org
http://www.ovirt.org/OVirt_Administration_Guide
http://community.redhat.com/blog/2014/05/ovirt-3-4-glusterized/
http://blogs-ramesh.blogspot.in/2014/12/deploying-gluster-using-ovirt.htm

20. 06/26/15 20Fudcon Pune 2015
THANK YOU!
devel@ovirt.org
#ovirt irc.oftc.net