The document outlines the agenda and content of the GlusterFS meetup in February 2015, focusing on the integration of Gluster with oVirt, a virtualization platform. Key topics include managing Gluster storage through oVirt, upcoming features, and a demo of Gluster capabilities. It also highlights features such as volume management, geo-replication, and enhancements for disk management in oVirt 3.6.

1. Ramesh N
Software Engineer – Red Hat
Gluster and oVirt
GlusterFS Meetup
Feb. 2015

2. 02/09/15 2GlusterFS Meetup
Agenda
● About oVirt and Gluster
● Ovirt Gluster Integration
● Gluster Features
● Managing Gluster using oVirt
● Demo
● Upcoming Gluster features in oVirt
● Q & A

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Ovirt
oVirt is a virtualization platformoVirt is a virtualization platform
to manage virtual machines,to 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

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Ovirt Architecture

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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

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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

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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

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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

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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

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Demo

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Upcoming Features
in oVirt 3.6

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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

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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

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Geo Replication
● Enables creation and maintenance of Geo-
Replication sessions across clusters
http://www.ovirt.org/Features/Gluster_Geo_Replication

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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

16. Feb 9, 2015 GlusterFS Meetup
Q&A

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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

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THANK YOU!
devel@ovirt.org
#ovirt irc.oftc.net