10 Golden Rules for S/4 HANA Migrations
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Transcript of 10 Golden Rules for S/4 HANA Migrations
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10(ish) Golden Rules for aS/4HANA MigrationJohn Appleby
GM, Bluefin Solutions Inc.
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• S/4HANA Introduction Differences between Suite on HANA and S/4HANA Deployment Options
• Preparing for your S/4HANA Migration Building an integrated schedule Sandboxing and prototypying Housekeeping & Solution Manager Change Management & Test Management Sizing, Architecture, HA, DR, Backup & Recovery
What you will learn today
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S/4HANA Introduction
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• The next version of SAP Business Suite
• New SKU and Code Fork Only supported with the SAP HANA DB
• S/4HANA themes: Renewed interface with Fiori UX Simplified structure with SAP HANA Cloud deployment first
What is S/4HANA
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S/4HANA Deployment Options
Public Cloud• Shared HANA multi-
tenant DB• HANA Cloud Platform
Extensions• Quarterly Release
Schedule• 100% Managed by SAP• Automatic Updates
Managed Cloud• Managed HANA DB and
network• HANA Cloud Platform
Extensions• ABAP Customization• Quarterly Release
Schedule• 100% Managed by SAP• Scheduled Updates
On-Premises• On-Premises or Hosted• ABAP Customization• Yearly Release Schedule• Managed by
Customer/Partner• Update schedule
defined by customer
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SAP S/4HANA Roadmap
http://www.sap.com/bin/sapcom/en_us/downloadasset.2015-03-mar-02-23.sap-s-4hana-frequently-asked-questions-pdf.bypassReg.html
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SAP S/4HANA Customer Journey
http://www.sap.com/bin/sapcom/en_us/downloadasset.2015-03-mar-02-23.sap-s-4hana-frequently-asked-questions-pdf.bypassReg.html
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Planning for your migration
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• Most Customers look for a technical migration first To S/4HANA or Suite on HANA
• Out of Scope: HANA Live / Analytics Simple Finance (i.e. S/4HANA)
• Suite on HANA is the stepping stone to S/4HANA Then perform code changes, activate S/4HANA extensions
• S/4HANA direct migration expected late 2015 N.B. Migrating to SoH is a great first step to S/4HANA!
1) Define Project Scope
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• Cover all Technical Migration activities Upgrade to ECC 6.0 EhP7 (if necessary) Unicode Conversion (if necessary) HANA Migration
• Restitution “As fast, faster, or much faster” ABAP code optimization (some things will be slower)
2 Define Technical Scope
ECC EHP 7 UpgradeUnicode
ECC to HANA MIgration
New GLSFIN
S/4HANA
ECC on HANA
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• Build one Integrated Schedule Weekly goals
• Include all teams above And partners! Assign ownership
• Agree schedule with all teams Takes time (1-2 weeks) Aligns with project prep phase
3) Build the Integrated Schedule
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4) Define Stakeholders & Comms Plan
Functional
PMOBasis
ReleaseManagement
BW/Analytics
Integration
ChangeManagement
Test Management
Business Owners
Sponsors
ABAP
Infrastructure
EnterpriseSecurity
SAPSecurity
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• Build first sandbox immediately Recent production copy Production sized! Include integration environment (if possible)
• Build it for real! Full migration with documentation All functional work
• Include test cycle Unit testing Integration testing Performance/Stress testing
5) Sandbox & Prototype
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• Business Suite systems often venerable Housekeeping is not always done A clean system is #1 way to de-risk your project!
• DRAM is expensive! Basis tables alone cost ~150GB of DRAM below Multiplied by N production sized systems! TB!
• Run HANA sizing guide SAP Note 1736976 (BW) SAP Note 1793345 (ECC) Look for Big Basis Tables SAP Note 706478
• Include in Schedule
6) Focus on Housekeeping
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• Disk Databases are inexpensive Data Reduction rarely considered
• Top 100 tables usually 90% of DB space Run HANA sizing guide SAP Note 1736976 (BW) SAP Note 1793345 (ECC)
• Analyze Top 100 tables Create action plan PSA, DSO Change Log deletion (BW) IDOC, Old Functional Areas, Data Archiving (ECC)
• Remember every GB saved is 10-20GB stored!
7) Data Reduction Program
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• Test Management is critical Some customers have a mature strategy Some do not
• Revise your test management strategy Test Automation Test Coverage Test Prioritization
• Reduce your time to complete testing! How long does it take to complete regression test?
8) Change & Test Management
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• Make sure you are on the latest latest SP! http://scn.sap.com/community/abap/custom-code-management
• Custom Code Management Tools (CCMT) Custom Code Management Cockpit (CDMC) Usage & Procedure Logging (UPL) CloneFinder
• Use these tools in combination with: Testing Process prioritization by business users
9) Solution Manager is your friend!
TestStrategy
Priority
Testing
Clones CDMCUPL
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• Complete Sizing Sandbox system is a great way to size accurately Sizing tools are good alternative
• Consider technical architecture HANA supports database multi-tenancy
10) Architect for S/4HANA
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• HANA supports system replication Active/Passive Synchronous (HA) Multi-tier Asynchronous (DR) SUSE Linux supports automated host failover
• Very low cost to implement As compares to e.g. RAC Most HANA systems are HA
• Even lower cost options Share QA & DR
11) Architect for HA/DR
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• HANA Advisory Council https://blogs.saphana.com/2015/01/12/now-time-plug-sap-hana-customer-communities
• HANA Ambassador Program North America only Ask your SAP Account Executive
• Max Attention / Active Embedded Various services provided Some useful (going live services, custom code)
• Active Global Support Going live services
12) Get Support from SAP
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• Cutover plan touches many teams But most teams build “MY PLAN”
• Build an integrated plan All teams, all activities Number the plan Align the numbers with the cutover doc
• Track forecast and actual Tool doesn’t matter (Project, Excel etc.)
13) Build an integrated cutover plan
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John [email protected]@applebyjbluefinsolutions.com/johnappleby