Presentation on theme: "Oracle/DB migration at the Québec Government"— Presentation transcript:
1Oracle/DB migration at the Québec Government Presented by:Karen Ann PlourdeDavid KreuterEnterprise Connections Webcast
2The beginning of the project Identifying the potential for the client :DatabasesWebSphere Application Server (WAS)WAS/Portal + LWWCMFirewallsTAM & LDAPEDGE serversIdentifying the most cost efficient project – Oracle/DBReduction of the number of licencesSuccess storiesEasy conversion (data transfer; unload/reload)
3Intangibles Backup/restore : mainframe strategy Disaster Recovery : mainframe stability with an external providerVirtualizationCloningPerformance (I/O) for OracleSecurityResource sharingIPL packLinux KernelOracle executablesGolden imagesPartitioning (EAL 5 security level)On demand
4Intangibles Flexibility of the solution Cloning and deployment engine Creating/Installation a new serverLinux : 30 minSUN, AIX, Windows : between 1 week and 3 months (if RFP needed)Cloning/Installation an Oracle/DB instanceUnder z/VM-Linux : minUnder SUN : hAdjustments to the cloning engine for a new service (ex. WAS) :Within 2 weeks
5Business case The cost of the software and hardware The business case is a comparison between the server environment (Intel, SUN, …) and the System z environmentThe business case is based onThe cost of the software and hardwareThe effort of installation and deploymentTraining neededExpertise needed (consultants)All efforts needed for migration were transferred to future projects. All projects must be approved by the board of directors. (NOT included in the business case)The DGTIC’s theory is (a migration is mandatory) :Migrating from SUN to pSeries » Migrating from Sun to System zOverall, the cost of the software and hardware is reduced by 30%. Every extra instance will help to reduce the cost.
6Business caseThe Oracle/DB migration project will break even within two years.Within the first two phases of the project (Oracle/DB and WAS), the mainframe will be repaid within three years. It was very important to build the business case around a worst case scenario. It can only be better, not worse.The business case doesn’t consider the following :ElectricityFloor spaceAir conditioningUPS... All of which are favourable with System z ...
7Project status Installation of z9-EC (5 IFLs) 5 LPARs Oracle/DB WAS TAM & LDAPService zoneLab zone40 internal networks (vswitch)z/VM v5r2.0Novell SUSE Linux SLES 8 & 9Oracle/DB 9i & 10gRACF, Dirmaint, RSCS, …Velocity Software tools (performance)Cloning & deployment engine development
8Project status Oracle/DB (9i & 10g) migration Golden images for SuSE 8 & Oracle/DB 9iSuSE 9 & Oracle/DB 10g165 instances prepared (or created directly on the z9-EC) on the z/VM-Linux environment:One or two instances per server.60 databases fully migrated100+ with database, waiting for activation»190 instances by the end of this yearOver 200 new instances planned per year for the next few years12 instances in production as part of the government portal.Early 2007 another 5 instances will be in productionFor the first migrations (» 60), on average1 migration per day (20-25 databases per month)
9How we guaranteed client isolation: winning hearts and minds … Challenges:Groups supporting physical servers wary of large box virtualization.Introduced (- or reintroduced -) S/370 through to zSeries concepts emphasizing guaranteed isolation:Privacy on the box while still sharing resourcesVirtual storage since 1970Virtualization of CPU, I/O, storage and networksSecuring resources through the operating system and RACFPassword and rules based authorizationsSeparation of systems and security tasks by staff in different departmentsz/VM: over 35 years of virtualizing!
10And Winning those hearts and minds through training … Over 200 person days of training to staff:Mainframe Systems programmersUnix administratorsSecurity officersNetwork administratorsArchitectsAnalystsTraining sessions with lectures and labs:Architecture seminarz/VM Systems WorkshopLinux on the Mainframe Workshopz/VM Networking and Security WorkshopBriefings for team leaders and managementSummary presentations to executives
11z/VM: Excellence in Virtualization Combined with LPARs z/VM (CP) provides great virtualization.CMS may be old (mature) but:Powerful scripting languages with REXX and PIPELINESCloningFile and data managementExcellent products and services based on CMS:Configuration and directory managementScheduling jobsStrong rules based security with VM RACF.Many tools and products provided for automation tasks.Brilliant physical and virtual networking with:HipersocketOSA devicesGuest LanVswitch
12Linux: Excellence in systems and applications Highly reliable and stable code.Vendor distributions provide known service stream.Excellent administration tools.Robust and wide range of networking services built in:TCPIPFile and data managementGreat platform for launching internet enabled applications:ORACLEWebsphereTAM/LDAP
13z/VM and linux on the mainframe: a powerful combination at the DGTIC Open source software on the mainframe provides the stability of z/VM with the ability to run modern applications.Service being offered to many government ministries and agencies.The word is out that z/VM and linux on the mainframe is a good place to host your applications:Internal government s and announcments from the project office promoting z/VM and linux on the mainframe solution.Rapid growth is forecasted:and the DGTIC is ready to keep up with the demand.
14Lessons learned: Volume 1 Acceptance of virtual servers quicker than expected.Grew to 100+ Oracle servers ahead of plan.Fully tasked personnel (big shoulders):Confirmed our expectation that 2 linux administrators can support all virtual linux servers.100:1 ratio of linux virtual machines to administrator2 z/VM systems programmers supporting 5 LPARs:New to z/VMMentored by consultantz/VM support will be integrated into MVS group by year end 2007Less than fully tasked personnel (arms and legs):Security administratorNetwork programming
15Lessons learned: Volume 2 Big win early win with successful disaster recoveryAdminstration and reporting on centralized servers is excellent.Full knowledge of where and what the servers are up to.Lots of new documentation and procedures integral part of project.Lots of training requiredRequire a lot of z/VM paging space.Core memory of 32 gigabytes, 2 gigabytes of expanded storage, and 50 gigabytes of DASD paging space.
16Oracle Lessons Learned Mostly business as usual for the DBAs:Use SSH client or “X” windows (no 3270 usage)DBAs comment on rapid performance of I/ODB loading faster than in other platforms.Benign ignorance of the virtual machineLinux adminstration performed by linux sysadmin.z/VM administration performed by VM sysprogs.Rapid creation of new databases in virtual machines for testing, acceptance, and production.Initial install was difficult but once incorporated into cloning methods subsequent installs quick and easy.Almost all client needs satisfied with ORACLE cloned image.~ 2% require some degree of customizing.
17Software Technologies and Processes Capitalizing on z/VM virtual network technologyLinux replication mantra: « install once clone often »Creating the z/VM « valise »Responding to the Challenge: Guaranteeing Client IsolationTranscending Technical Cultures