1. Live Migration VERITAS Cluster Server

2. Planned Downtime is Painful… Gartner states 70% of application and database downtime is caused by planned outages.. –Application Upgrades –OS Upgrades –Server Maintenance Sys-Admins perform maintenance after-hours and on weekends “The biggest near-term customer pain-point I see is related to planned migrations and avoiding or reducing planned downtime.” – Donna Scott, 2005 Gartner / VERITAS Interview

3. VCS Live Migration Addresses Planned Downtime Live Migration provides stateful relocation of applications across physical servers –Client connections remain uninterrupted during migration Business Value: –Perform server maintenance during normal business hours –Reduce associated Application Server outages –Increase server utilization through moving applications based on changing resource requirements “83% of customers considered the need to keep applications running during server maintenance an ‘absolute must do’ or important in their environment.” – Tier 1 Research UC and Virtualization Survey, 2005 “83% of customers considered the need to keep applications running during server maintenance an ‘absolute must do’ or important in their environment.” – Tier 1 Research UC and Virtualization Survey, 2005

4. Live Migration is an Evolution of HA Provides a logical extension to the VCS paradigm: Non-application intrusive Uses native VCS agent framework Supports mission critical Oracle databases No competitive technology exists on the Solaris platform App Servers Database Web VCS Live Migration Targets market-leading App Server environments: –IBM Websphere –BEA Weblogic Where Oracle databases are used on Solaris

5. Live Migration is a Key Enabler of a Dynamic Data Center Applications have variable and unpredictable demand Servers are over-provisioned to handle variableness and potential growth Live Migration can move applications based on changing resource requirements “Since utility computing is more than just a server utilization strategy, the vision and promise of utility computing and the dynamic data center cannot be complete without the capabilities provided by application virtualization such as stateful application relocation.” – Tier 1 Research, 2005

6. Technology Behind VCS Live Migration Application virtualization enables application mobility.. Virtualizes Application for Migration: –Process –Memory –Network –File system A point-in-time snapshot of the database is taken during the Live Migration process

7. VCS Live Migration The Live Migration Process 1. Create the Application Container  Process Virtualization  Network Virtualization  Temp File System Virtualization 2. Snapshot the Database  Save State to Disk 3. Restore the Database

8. VCS Live Migration Install and Configure VCS with Oracle Hardware Operating System VERITAS Cluster Server Application Container Oracle Database 2. 3. 1. 1.Install Oracle on the server using shared storage (SAN) 2.Configure Oracle with VCS 3.VCS starts Oracle within an Application Container VCS is not in the Oracle data path..

9. Operating System Hardware Application Container VCS Live Migration Application Virtualization Container Oracle Processes and Associated State Forked Process Temp File System Virtualization Process Virtualization Network Virtualization Terminology A snapshot is a point-in-time capture of an application’s processes and their associated state Application is captured live, active TCP connections are preserved Snapshots are saved to disk Operating System VERITAS Cluster Server Application Container Oracle Database

10. Application Container VCS Live Migration Virtualization of Process State Hardware Operating System PID USER SIZE RES STATE TIME CPU COMMAND 6235 root 2280K 1528K cpu 0:00 0.30% top 1051019 oracle 210M 9552K sleep 0:27 0.14% oracle 1051029 oracle 207M 23M sleep 1:40 0.11% oracle 135 root 2400K 1720K sleep 1:09 0.11% inetd 292 root 2472K 2008K sleep 0:45 0.05% mibiisa 6034 root 1832K 1208K sleep 0:00 0.00% ksh 1051023 oracle 206M 29M sleep 0:05 0.00% oracle 1 root 792K 376K sleep 0:04 0.00% init 1051027 oracle 206M 15M sleep 0:01 0.00% oracle 1051025 oracle 206M 15M sleep 0:01 0.00% oracle 1051021 oracle 206M 11M sleep 0:01 0.00% oracle 138 daemon 2504K 1776K sleep 0:00 0.00% statd 295 root 1808K 1256K sleep 0:00 0.00% in.rlogind PID USER SIZE RES STATE TIME CPU COMMAND 6235 root 2280K 1528K cpu 0:00 0.30% top 1051019 oracle 210M 9552K sleep 0:27 0.14% oracle 1051029 oracle 207M 23M sleep 1:40 0.11% oracle 135 root 2400K 1720K sleep 1:09 0.11% inetd 292 root 2472K 2008K sleep 0:45 0.05% mibiisa 6034 root 1832K 1208K sleep 0:00 0.00% ksh 1051023 oracle 206M 29M sleep 0:05 0.00% oracle 1 root 792K 376K sleep 0:04 0.00% init 1051027 oracle 206M 15M sleep 0:01 0.00% oracle 1051025 oracle 206M 15M sleep 0:01 0.00% oracle 1051021 oracle 206M 11M sleep 0:01 0.00% oracle 138 daemon 2504K 1776K sleep 0:00 0.00% statd 295 root 1808K 1256K sleep 0:00 0.00% in.rlogind PID 1051019 Process State Virtual Memory File Temp File System Virtualization Process Virtualization Network Virtualization PID 1051029 PID 1051023 PID 1051019 PID 1051027 PID 1051025 PID 1051021 Process Snaplist Freeze Processes and associated memory segments 1. 2.w Save Process State to Disk Oracle Processes and Associated State VERITAS Cluster Server Application Container Oracle Database

11. Application Container VCS Live Migration Virtualization of Network State Hardware Temp File System Virtualization Process Virtualization 1.w Hold & Queue Active Connections Oracle Processes and Associated State TCP/IP Connection Filter Database Transaction Network Interface Network Virtualization 2.w Save Connection State to DiskConnection Filter Migrates TCP connections ARP Handling Port / Seq # Translation Operating System VERITAS Cluster Server Application Container Oracle Database

12. Application Container VCS Live Migration Virtualization of Temp File System Oracle Processes and Associated State Temp File System Virtualization Process Virtualization Network Virtualization Hardware /var tmp Temp File System Multiplexer Oracle tempSystem tempApp2 temp Multiplexer redirects specific local directories to shared storage Allows temp files to move with application Uses a distributed loopback file- system 1.w Temp files relocate with application Operating System VERITAS Cluster Server Application Container Oracle Database

13. VCS Live Migration Summary: The Live Migration Process Hardware Operating System VERITAS Cluster Server Hardware Operating System VERITAS Cluster Server Application Container Oracle Database 1. Snapshot Process and Memory State Save State to Disk 2. Snapshot Active Network Connections Save Connection State to Disk 3. Dismount Filesystem 4. Re-mount Filesystem on Secondary Host PrimarySecondary Application Container Oracle Database 5. Page Fault Process and Memory state into Secondary Host 6. Resume TCP Connections

14. VCS Live Migration Summary: The Live Migration Process 1. Create the Application Container 2. Snapshot the Database  Freeze Processes and Memory Save State to Disk  Queue and Hold Active Connections Save State to Disk 3. Restore the Database  Redirect File System Locations  Page Fault Process and Memory state into secondary node  Resume TCP connections

15. Capabilities and Platform Support Capabilities: Integrated into VCS Java GUI for seamless look & feel Wizard-based configuration Upgrade existing Oracle configuration Generic ‘native OS’ services support, for connection persistence of FTP, NFS, etc (TBD) Platform and Application Support: Solaris 9 / Oracle 9 (CAP) Plus Solaris 10 / Oracle 10 (Planned for GA)

16. CAP and Release Timeframe Customer Access Program: Begins in August 2005 Based in VCS 4.1 for Solaris We are accepting customers now.. http://cap.veritas.com Release Timeframe: Full release with or near UxRT 5.0 (Q2 ’06) Support for Database Editions

17. & ANSWERS QUESTIONS

18. VCS Product Marketing / Management: Minakshi Sehgal minakshi.sehgal@veritas.com James Gentes james.gentes@veritas.com Contacts