Persistent storage is important for containerized applications. Red Hat provides container-ready storage using Red Hat Gluster Storage which provides scalable, distributed file storage for containers. It allows storage and containers to coexist on the same hardware, improving utilization and lowering costs. Red Hat Gluster Storage is optimized to provide container-native storage on OpenShift for workloads like databases to get the benefits of containers while ensuring persistent storage.

1. PERSISTENT STORAGE FOR CONTAINERS
Ric Wheeler, Sr. Director, Red Hat Storage Engineering
Vijay Bellur, Lead Architect, Red Hat Gluster Storage

2. What Are Linux Containers?
Software packaging concept that typically includes an
application and all of its runtime dependencies
• HIGHER quality software releases
• SHORTER test cycles
• EASIER application management
CONTAINER CONTAINER
APP
LIBS
HOST OS
SERVER
APP
LIBS
BENEFITS

3. Greater Portability, Automation, and Integration
PUSH IMAGE
CODE REGISTRY
CODE & BUILD TEST DEPLOY
PULL IMAGE

4. How Did We Get Here?
Development
Model
Application
Architecture
Deployment &
Packaging
Application
Infrastructure
Storage
Waterfall
Agile
Monolithic
N-tier
Bare Metal
Virtual Servers
Data Center
Hosted
Scale Up
Scale Out
DevOps MicroServices Containers Hybrid Cloud
Storage as
a Service

5. WHY PERSISTENT STORAGE FOR CONTAINERS?
“For which workloads or application use cases have you used/do you anticipate to use containers?”
Data Apps
Cloud Apps
Systems of
Engagement
Systems of
Record Web and Commerce
Software
Mobile Apps
Social Apps
77%
71%
62% 62%
57% 52%
46%
Base: 194 IT operations and development decision-makers at enterprise in APAC, EMEA,
and North America Source: A commissioned study conducted by Forrester Consulting on behalf of Red Hat, January 2015
Scalable, Cost Effective, Distributed Storage for Containers

6. CHOICE OF VOLUME PLUGINS
Red Hat’s Upstream Contributions
AUTOMATED CONFIGURATION
SINGLE CONTROL PANEL
CHOICE OF PERSISTENT STORAGE
Ceph RBD
Amazon EBS
Fiber Channel
GCE
iSCSI
NFS
GlusterFS

7. DRIVING THE FUTURE OF STORAGE
Nov 2015 Mar 2016 Summer 2016
CONVERGENCE OF STORAGE AND COMPUTE
RHGS Container
• Dedicated storage cluster for
containerized
• and PaaS environments
• Supported for OpenShift Enterprise
• Containerized Red Hat Gluster Storage serving
• storage from a dedicated storage cluster
• Optimized for applications running on RHEL 7,
• OpenShift Enterprise, and RHEL Container Host
• Containerized Red Hat Gluster Storage
inside OpenShift Enterprise alongside
application containers
• Red Hat Gluster Storage cluster
comprised of disks from multiple container
cluster nodes
CONTAINER READY STORAGE CONTAINERIZED STORAGE CONTAINER NATIVE STORAGE

8. MySQL Container
CONTAINER READY STORAGE
CONTAINER NODE 1
CONTAINER NODE 2
CONTAINER NODE 1
CONTAINER NODE 3
NGINX Container
NGINX Container
NGINX Container

9. CONTAINERIZED RED HAT GLUSTER STORAGE
CONTAINER NODE 1
CONTAINER NODE 2
NGINX Container
NGINX Container
CONTAINERIZED
RED HAT GLUSTER
STORAGE

10. OPENSHIFT NODE 2
CONTAINER-NATIVE STORAGE
Lower TCO
Unified Orchestration
Ease of Use
Greater control
OPENSHIFT NODE 3
OPENSHIFT NODE 1
RHGS Container RHGS Container
OPENSHIFT NODE 4
MASTER
NGINX Container NGINX Container
Elasticsearch Container
RHGS Container

11. CONTAINER TECHNOLOGIES
DevOps Tools and User Experience
Language Runtimes and Middleware
Databases and Other Services
Container Orchestration and Management
Container API Container Host
Storage

12. CUSTOMER SUCCESS
APPLICATION
SERVERS
CONVERGED
SERVERS
STORAGE
SERVERS
NEW AGILITIES allowed telco to bring a new offering to market faster and cheaper
LOWER COST than traditional storage and avoiding endless commitment to proprietary vendors
FLEXIBLE geo-replicated architecture can grow/shrink dynamically
OPTION to be tuned for price or performance
BENEFITS
CONTAINERIZED STORAGE
Applications and storage can co-exist on the same hardware
Higher server utilization and lowers operational costs
Storage generates only 3%-10% overhead on compute
servers

13. WHAT’S THE BIG DEAL?
BARE METAL VIRTUALIZATION CONTAINERS
Deploy in Days or Weeks
Single App Instance
Deploy in Hours or Days
10s or 100s of Apps
Deploy in Seconds or Minutes
100s or 1000s of Apps
APP
LIBS
HOST OS
SERVER
HOST OS
SERVER
HOST OS, SHARED SVCS
SERVER, CLOUD
APP APP
LIBS LIBS
GUEST OS GUEST OS
VIRTUAL
MACHINE
VIRTUAL
MACHINE
APP APP
LIBS LIBS
CONTAINER CONTAINER
HYPERVISOR

14. LIGHTWEIGHT VIRTUALIZATION
Less Overhead
Faster Instantiation
Better Isolation
Easier Scale
SERVER
HYPERVISOR
HOST OSHOST OS, SHARED SVCS
SERVER, CLOUD
VIRTUAL
MACHINE
VIRTUAL
MACHINE
CONTAINER CONTAINER
APP
LIBS
APP
LIBS
GUEST OS GUEST OS
APP
LIBS
APP
LIBS

15. CONTAINERS VS. VIRTUALIZATION
Containers Virtualization
• Abstracts OS Kernel
• Limited to Linux
• Unified CPU and memory mgr
• Up in seconds
• 100s or 1000s
• Multiple copies of single app
• Abstracts entire device
• Any Operating System
• Separate CPU and memory mgrs
• Up in hours or days
• 10s or 100s
• Multiple apps
VS

16. WHAT’S AHEAD?
Dynamic Provisioning and New Workload Support
2016
E2E Dynamic Provisioning support
Applications attach (or detach) to
RHGS volumes as needed with zero
admin intervention dynamically
Usability improvements
Address customer pain point of
static/inflexible storage provisioning
Persistent Storage for OpenShift 3.4 Persistent Storage for OpenShift 3.5+
Support for containerized
database workloads via non-
shared persistent storage
Support for containerized databases
such as MySql, PostGres, and MariaDB
2017

17. JOIN THE CONVERSATION
redhat.com/ContainerStorage
• Demos
• Analyst Opinion
@RedHatStorage
• Storage Days
• Promotions
redhatstorage.redhat.com
• Thought Leadership
• Announcements

18. redhat.com/containerstorage
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