Presentation that explores the concepts in Open Source that can be leveraged to operate "Zero Downtime" data center solutions.

1. When Downtime
Is Not An Option
Joe Felisky
Global Director – Technology Solutions
SUSE

2. 2
Survey Results: More and More
Systems Are Considered Critical
Source: Forrester Research, Inc.

3. 3
Workloads that can least tolerate
downtime …
• ERP applications, databases, transactional
workloads, and more
• Workloads that may impact a large # of users
• Workloads that directly impact revenue
Mission/Business
Critical
Workloads
• As Data Centers are consolidated onto fewer
servers, highly virtualized hosts require
additional protections
• Downtime of the guests and hosts can critically
impact your IT services
High Density
Virtualization

4. 4
Downtime is More Than
Just Lost Revenue

5. 5
Planned Downtime
• What is/causes planned downtime?
– Scheduled software patching and updates that require system
reboot
– Scheduled hardware maintenance
– Data migration
• What can IT do to mitigate it?
– Schedule service window to minimize business impact (getting
harder in globalization and mobile era)
– Optimize the process
Schedul
ed
Downti
me

6. 6
Unplanned Downtime
• What is/causes unplanned downtime:
– It’s a surprise – no/little warning
– Hardware failure, software bug, malicious attack or operational
mistake
– An environmental failure such as natural disaster
• What can IT do to mitigate it?
– Reliable systems, High Availability clustering, Geo clustering,
proactive patch management
– Improve process by best practices and training

7. 7
Unplanned Downtime: Top Causes
Source: Forrester Research, Inc.

8. Exploring Open Source Solutions
That Minimize Downtime

9. 9
How To Choose
The Right Technologies?

10. 10
1.
Prevent
Hardware
Downtime
3.
Minimize
Human
Mistakes
2.
Maximize
Service
Availability
SUSE’s Three Steps
Toward Zero Downtime:

11. 11
Step 1: Prevent Hardware Downtime
• Choose the right platform to fit your IT needs.
• By working with hardware partners, SUSE is bringing
reliability to the next level.
Hardware
Architecuture
Hardware Benefits SUSE value-add
IBM System z • 99.999%
availability
• Specially designed
tools and
technologies
• HA/Geo included
INTEL64 • Cost-effective
• Widely accepted
for mission-critical
workloads
• Cooperate with
hardware to fully
exploit RAS (i.e.
MCE)

12. 12
Baldor
• Baldor Electric is a global
manufacturing company with
headquarters in Arkansas,
USA. It has 26 plants in the
US, Canada, Mexico and
China, selling industrial electric
products to more than 70
countries.
• Baldor couldn’t ensure 24x7
availability to provide quality
service to customers and
employees and eliminate the
risk of business disruption. At
the time, outages occurred
five-to-eight times a year,
costing hundreds of thousands
of dollars.
• By moving workloads to virtual
machines on IBM System z
running SUSE Linux
Enterprise Server for System
z, Baldor Electric Company
reduced IT costs from two
percent of sales to less than
one percent—while improving
response time, up-time and
productivity.
• “The platform goes beyond
five 9s,” says Eric Breuer,
Manager, Large Systems,
Baldor. And the new
environment results in
considerable time savings for
planned downtime.
● 30% lower hardware and
software costs.
● 90% consolidation of servers
(resulting in lower space,
cooling and power costs).
● 90% improvement in up-time
(reducing disaster recovery
losses).
● “We believe SUSE has the
best Linux distribution with the
best support. The platform
goes beyond “five 9s,” and the
new environment results in
considerable time savings for
planned downtime.”
Eric Breuer, Manager
Large Systems
Baldor
Read Full Case Study

13. 13
Step 2: Maximize Service Availability
• SUSE Linux Enterprise High Availability Extension
– Industry-leading open source HA clustering solution
– Set up clusters among physical hosts or virtual guests
– Easy-to-use set-up and management tools
– Resource agents for third-party apps like SAP, PostgreSQL,
Oracle, JBoss, Tomcat, Websphere and more.
• Metro and Geo Clustering
– Combat regional disasters such as power outage or flood
– Ensure business continuity by metro clustering (up to 25km)
or geo clustering (any distance in the world)
*Founder of the Linux Foundation HA Working Group

14. 14

15. 15
Maximize service in your cloud or with
your storage …
• SUSE Cloud
– Leverage High Availability of the Control nodes in your
Openstack (SUSE Cloud) deployment
– Utilize Openstack Heat to scale applications on demand for
increased service availability
• SUSE Storage (beta)
– Software Defined Storage based on Ceph
– Scalable, Reliable and Highly Available through redundancy
– Automated management and repair of underlying storage

16. 16
Step 2: Maximize Service Availability
(Cont.)
• SUSE Linux Enterprise Live Patching New!
(codenamed “kGraft”)
– Live-kernel patching without reboot
– Apply urgent security patches before next service window,
reducing the need for planned downtime
• Unique advantages
– It integrates smoothly into existing package and patch
management solutions, as it uses the Enterprise Linux RPM
package standard
– While patching, there is no need to hold the Linux kernel for a
short time, as is necessary in other technologies

17. 17

18. 18
Step 3: Minimize Human Mistakes
• Full System rollback
– Built on copy-on-write btrfs and efficient Snapper tool
– Now capable of full-system rollback, including kernel files
– Minimizes risks of operational mistakes
• YaST and autoYaST
– The most efficient single-system management framework,
consistent UI
• SUSE Manager
– Open source one-to-many system management
– Reduce errors by proactive and automated patching
– Full Service Pack upgrade automation – with no re-install of the
Server OS.

19. 19

20. 20
1.
Prevent
Hardware
Downtime
3.
Minimize
Human
Mistakes
2.
Maximize
Service
Availability
Three Steps For Customers
To Take Towards Zero Downtime

21. 21
Thank you.
For more information:
www.suse.com/zerodowntime

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