1. Oracle Linux and K Splice
- Rebootless kernel updates
Paul Kangro
Principal Sales Consultant
Oracle Linux & Virtualisation
1 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.

2. The following is intended to outline our general
product direction. It is intended for information
purposes only, and may not be incorporated into any
contract. It is not a commitment to deliver any
material, code, or functionality, and should not be
relied upon in making purchasing decisions.
The development, release, and timing of any
features or functionality described for Oracle’s
products remains at the sole discretion of Oracle.
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3. What We Hear
Brittle
Point to Point
Maintenance Inflexible
N i c h e IT Environment Fragmentation
Hard Coded
Expensive
Status Quo
Tuning Heterogeneous
First Generation
Custom
Slow
Testing
Rigid Proprietary
Integration
Legacy Application Silos
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4. 63% 21% 16%
Run the Grow the Transform the
Business Business Business
Source: “IT Metrics: IT Spending and Staffing Report, 2012”, Gartner Research, 2012
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5. Patching and yet More Patching : Traditional Update Approach
Disruptive, Downtime and Delays
Security Update …And Another 4
…One Week Later
Released Hours Later
 System administrator negotiates with  Shut down application server  Updates applied and tested
management to schedule outage  Shut down database  Back in business after first
windows
 Apply Linux OS update notification of security update -
 System administrator schedules typically over one week has passed
downtime the following week  Start up database
 System administrator notifies users  Start up application server
of planned downtime  Sanity check application
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6. System Outages Impact Reputations
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7. A Costly Problem
$3.654 Million in Total
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8. Oracle: Nearly 15 Years of
2010
Investments in Linux 2007
 Validated Configurations
 Oracle Linux
Enhanced with
Launched Mainline-based Kernel
1998  Oracle Linux
2005 Undergoes 80,000 QA
 First Commercial Hours Per Day
RDBMS for Linux  On Demand Adopts
Linux History
x64 Linux  Exadata Engineered
at Oracle
 OCFS2 Accepted Into with Oracle Linux
2000 Mainline 2008-9
 9,000 Developers  Btrfs, Xen
 First x64 Linux Port Switch to Oracle Contributions
Supported Linux
 42,000 Oracle Linux Cloud Computing
Servers Deployed at
2002 2006 Oracle
2012
 Launch of  Oracle Linux Support
Unbreakable Linux  Support Lifecycle
Announced Extended to 10 Yrs
Linux Datacenter
 Asynch I/O, OCFS v1  Oracle Joins Linux  8,500 Linux support
Workloads
Foundation as Board Data Warehouse customers
Member 2011
 7,000 Oracle Linux
Support Customers
Single Use Production General Purpose
Deployments ERP/CRM  Oracle Buys Ksplice
Development Systems  DTrace Porting Begins
1998 2000 2002 2004 2006 2008 2010 2012
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9. Oracle Linux Strategy
 Deliver the best performing, most modern and reliable Linux
operating system for the data center
 Stay as close to mainline as possible
 Influence Linux roadmap upstream via direct community
involvement
 Offer differentiated enterprise-class support
 Full stack tested with real world workloads
 Lower cost
 Ensure Oracle Linux customers have full legal protection with
complete indemnification
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10. K Splice
Rebootless Kernel Patching for Linux
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11. Zero Downtime Updates with Ksplice
• Ksplice lets you install important kernel updates with:
• No downtime
• No disruption
• No rebooting
• While applications are running
• Only Oracle Linux offers this capability
Ksplice Zero Downtime Updates Available to Oracle Linux
Premier Support Customers; No additional Cost
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12. The update process
Client
Kernel update Ksplice technology Zero downtime
kernel update
Customer systems
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13. System Update Process
Non Disruptive - patches applied NO reboot
Disruptive – kernel patches reboot required
Other Linux packages
Linux
Distribution
Kernel in
system memory
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14. Patch Update
ULN Repository Local YUM repo
Other Linux packages
Kernel in
system memory After Reboot
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15. Patch Update
ULN Repository Local YUM repo
Other Linux packages
Kernel in
system memory After Reboot
Ksplice Repository Local Ksplice repo (no reboot)
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16. Ksplice Technology
Insert jump to
Kernel Old New memory
Insert jump to
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17. Ksplice Technology
Logically becomes
Kernel New memory
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18. Ksplice Technology
Kernel Old New memory
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19. Installing Ksplice Uptrack
• Get access key via ULN
• 60-second install process:
wget -N https://www.ksplice.com/uptrack/install-uptrack
sh install-uptrack YOUR_ACCESS_KEY
uptrack-upgrade –y
• Done! No initial reboot
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20. Ksplice Uptrack – offline via Yum
• Create a local yum repository – point it to ULN
• Subscribe to ksplice channels
• Use the uptrack offline client
• It uses your local yum repo
• No need for each machine to connect to interent
Firewall
Connect
to ULN
Ksplice Clients
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21. Web interface
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22. Installing New Updates
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23. Ksplice for existing Oracle Linux Premier Customers
Existing Oracle Linux Premier customers can begin applying zero
downtime Linux today
Customer with an Oracle Linux Premier
CSI registered with ULN may request a
Ksplice access key
ULN web
Customer receives access key and uses it interface
to install and register the Ksplice Uptrack
client Uptrack client
Within minutes, Ksplice zero downtime
updates can be applied to Unbreakable Customer
systems
Enterprise Kernel
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24. NEW: Ksplice 30 Day Free Trial for RHEL
 Available to any with RHEL 5 or
RHEL 6 user
 Simple registration
 One minute installation of
Uptrack client
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25. Oracle Linux Premier Support
 True Enterprise Support for Linux
– Premier backports - fixes for the OS version you run; no forced upgrades
– Single number to call for the entire stack
– Zero downtime diagnostic and security patches for the Linux kernel via Ksplice*
 Full Indemnification without Financial Limits
 Dedicated, Global Linux Support Team
– Backed by 28 global support centers, speaking 29 local languages across 145
countries
 Lower Overall Costs
– Integrated management and monitoring tools
– Free server lifecycle management and clustering software
 Included in Oracle Premier Support for Systems on Oracle x86
architecture hardware
* there may be rare cases where this is not technically feasible
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26. 26 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.