IBM System z 2 The beginning of the project Identifying the potential for the client : –Databases –WebSphere Application Server (WAS) –WAS/Portal + LWWCM –Firewalls –TAM & LDAP –EDGE servers Identifying the most cost efficient project – Oracle/DB –Reduction of the number of licences –Success stories –Easy conversion (data transfer; unload/reload)
IBM System z 3 Intangibles Backup/restore : mainframe strategy Disaster Recovery : mainframe stability with an external provider Virtualization Cloning Performance (I/O) for Oracle Security Resource sharing –IPL pack –Linux Kernel –Oracle executables –Golden images –Partitioning (EAL 5 security level) On demand
IBM System z 4 Intangibles Flexibility of the solution –Cloning and deployment engine –Creating/Installation a new server Linux : 30 min SUN, AIX, Windows : between 1 week and 3 months (if RFP needed) –Cloning/Installation an Oracle/DB instance Under z/VM-Linux : min Under SUN : h Adjustments to the cloning engine for a new service (ex. WAS) : –Within 2 weeks
IBM System z 5 Business case The business case is a comparison between the server environment (Intel, SUN, …) and the System z environment The business case is based on –The cost of the software and hardware –The effort of installation and deployment –Training needed –Expertise 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 DGTICs theory is (a migration is mandatory) : –Migrating from SUN to pSeries Migrating from Sun to System z Overall, the cost of the software and hardware is reduced by 30%. Every extra instance will help to reduce the cost.
IBM System z 6 Business case The 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 doesnt consider the following : –Electricity –Floor space –Air conditioning –UPS... All of which are favourable with System z...
IBM System z 7 Project status Installation of z9-EC (5 IFLs) 5 LPARs –Oracle/DB –WAS –TAM & LDAP –Service zone –Lab zone 40 internal networks (vswitch) z/VM v5r2.0 Novell SUSE Linux SLES 8 & 9 Oracle/DB 9i & 10g RACF, Dirmaint, RSCS, … Velocity Software tools (performance) Cloning & deployment engine development
IBM System z 8 Project status Oracle/DB (9i & 10g) migration –Golden images for SuSE 8 & Oracle/DB 9i SuSE 9 & Oracle/DB 10g –165 instances prepared (or created directly on the z9-EC) on the z/VM-Linux environment: One or two instances per server. 60 databases fully migrated 100+ with database, waiting for activation – 190 instances by the end of this year –Over 200 new instances planned per year for the next few years –12 instances in production as part of the government portal. Early 2007 another 5 instances will be in production –For the first migrations ( 60), on average 1 migration per day (20-25 databases per month)
IBM System z 9 How 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 resources –Virtual storage since 1970 –Virtualization of CPU, I/O, storage and networks –Securing resources through the operating system and RACF Password and rules based authorizations Separation of systems and security tasks by staff in different departments –z/VM: over 35 years of virtualizing!
IBM System z 10 And Winning those hearts and minds through training … Over 200 person days of training to staff: –Mainframe Systems programmers –Unix administrators –Security officers –Network administrators –Architects –Analysts Training sessions with lectures and labs: –Architecture seminar –z/VM Systems Workshop –Linux on the Mainframe Workshop –z/VM Networking and Security Workshop Briefings for team leaders and management Summary presentations to executives
IBM System z 11 z/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 PIPELINES Cloning File and data management –Excellent products and services based on CMS: Configuration and directory management Scheduling jobs Strong rules based security with VM RACF. Many tools and products provided for automation tasks. Brilliant physical and virtual networking with: –Hipersocket –OSA devices –Guest Lan –Vswitch
IBM System z 12 Linux: 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: –TCPIP –File and data management Great platform for launching internet enabled applications: –ORACLE –Websphere –TAM/LDAP
IBM System z 13 z/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.
IBM System z 14 Lessons 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 administrator –2 z/VM systems programmers supporting 5 LPARs: New to z/VM Mentored by consultant z/VM support will be integrated into MVS group by year end 2007 Less than fully tasked personnel (arms and legs): Security administrator Network programming
IBM System z 15 Lessons learned: Volume 2 Big win early win with successful disaster recovery Adminstration 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 required Require a lot of z/VM paging space. –Core memory of 32 gigabytes, 2 gigabytes of expanded storage, and 50 gigabytes of DASD paging space.
IBM System z 16 Oracle 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/O –DB loading faster than in other platforms. Benign ignorance of the virtual machine –Linux 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.
IBM System z 17 Software Technologies and Processes Capitalizing on z/VM virtual network technology Linux replication mantra: « install once clone often » Creating the z/VM « valise » Responding to the Challenge: Guaranteeing Client Isolation Transcending Technical Cultures