SAP SUM (Software Update Manager) Phases

We have already discussed about the SUM in SAP, You can use below link for details
Software Update Manager (SUM) in SAP

Now we can go through the phases included in SUM

SUM Having mainly 6 steps,

• Extraction
• Configuration
• Checks
• Preprocessing
• Execution
• Postprocessing

1.Extraction 

• DDIC username and password
• Identify database & SAP version
• Checks the stack xml file
• Scanning of download directory where all the patches are placed
• Extract files to move to EPS/in
• Check SPAM version. Skip this if SPAM is already in latest version
• <SID>ADM credentials
• Pre-upgrade S-note list implementation
• Checks if the source and target system is valid for update
• Checks SAP system release
• Checks the system profiles

2. Configuration

• Input parameters for type of upgrade (downtime optimizes, higher complexity, high resource assignment)
• Keep database archiving on
• Execution strategy for transaction SGEN
• Maximum number of processes to be used for load generation. SGEN Processes
• Batch Process(Uptime) & Batch Process(Downtime)
• Maximum number of DDL processes (Uptime and Downtime)
• Number of parallel import processes (R3trans -Uptime and Downtime)
• Parallel Phases (Uptime and downtime)
• Update Instances
• Enhancement package inclusion
• Add-On selection
• Modification Adjustment (SPDD transport request and SPAU transport request)

3. Checks

• Space check in database, if space is Insufficient then extend tablespaces with script
• BW checks and phases
• Activation and conversion checks
• Modification support
• Preliminary upgrade processing
• List Locked SAP objects

4. Preprocessing 

• Check for locked objects
• ABAP Workbench locking
• Run shadow system for preparation of new release (ACT_UPG, PARDIST, SGEN)
• SPDD Adjustments
• Downtime Starts

5. Execution

• Merging of shadow and Real Instance
• system upgrade
• Table conversion
• Downtime Complete

6. Post-processing 

• SPAU change
• Backup
• Create folder in trans directory (EHPi)

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