Activating Zero Downtime Option (ZDO) in Software Update Manager

Objective

After completing this lesson, you will be able to choose the ZDO Approach in the Software Update Manager UI

Activation of ZDO in Software Update Manager User Interface

This section shows you how to select Zero Downtime Option (ZDO) in Software Update Manager and provide the password for utilizing ZDO.

Selecting Zero Downtime Option in Software Update Manager User Interface

Zero Downtime Option is shipped as one of the downtime-optimization approaches within Software Update Manager 2.0. To enable the Zero Downtime Option approach, select the option as part of the dialog workflow in the phase SELECT_ROADMAP.

If the dialog Scenario Strategy (step B) does not display the Zero Downtime Option (ZDO) approach, it might be that a component in the system is not ZDO enabled.

This image shows screenshots from Software Update Manager. The first screenshot shows the tool in the phase in SELECT_ROADMAP where a stack configuration file is entered. The second screenshot shows that the scenario strategy “Downtime-optimized” is selected, but ZDO is not displayed. The third screenshot shows an extraction from the logfile SELROADMAP.LOG where the reason for the missing ZDO selection is displayed: A component in the system is not ZDO compliant.

The log file for this phase can be accessed using Software Update Manager user interface by clicking on the hyperlink SELROADMAP.LOG shown in the dialog (step B) Scenario Strategy. In the log file, search for the pattern Check if strategy 'ZDO' is possible.

As shown in the sample output (step C), the components that are not ZDO enabled are marked with a warning message 4WETQ399:

Code Snippet
123456789101112
1 ETQ000 ==================================================
1 ETQ399 Check if strategy 'ZDO' is possible: 
...
2 ETQ399 Check if all components are ZDO enabled. 
...
4 ETQ399 Read 19 entries for table 'LIST'. 
4WETQ399 Component 'UNSUPP' with release '100' is not ZDO enabled. 
4 ETQ399 Component 'SAP_ABA' with release '75F' is ZDO enabled.
...
1WETQ399 => Strategy 'ZDO' is not possible. For details, see SAP Note 2707731. 
1 ETQ000 ==================================================

Authentication of Zero Downtime Option Approach

A password has to be requested before running ZDO using Software Update Manager. This section describes how to get the password to enable ZDO in the Software Update Manager user interface.

This image shows three boxes showing the process flow of ZDO registration. The first step is to complete the SAP Learning Journey and receive the knowledge badge. The next step is to request the ZDO password at SAP. The last step is to enter the password shared by SAP in the Software Update Manager user interface.
  • Using ZDO requires an educated employee who took the mandatory training and assessment provided in this Learning Journey.
  • Passing the assessment of this SAP Learning Journey will provide a digital Knowledge Badge.
  • The digital badge is issued by SAP SE and provided by Credly.com (separate log-on required).
  • After receiving the digital badge, it has to be "accepted" and must be made "publicly" visible.

Hint

Keep in mind to create the incident in time to retrieve the password. This becomes very important especially for the productive ZDO run. In addition, the password is only valid for the system ID and Software Update Manager version stated in the incident.

Example for Incident to Request the Password

Create the incident using the SAP ONE Support Launchpad as per the following example:

ComponentBC-UPG-DTM-TLA
SubjectPassword request for Zero Downtime Option of Software Update Manager
Description

Dear SAP support,

herewith I request the password to enable the Zero Downtime Option approach on the system specified below.

The person listed below has taken the ADM330 training and successfully passed the SAP Knowledge Badge assessment, and is supporting the project. A link to the SAP Knowledge Badge is provided below.

System-ID: DEV

Software Update Manager version: Software Update Manager 2.0 SP <xx>

Name: John Doe

Link to SAP Knowledge Badge: https://www.credly.com/earner/earned/badge/...

Thank you and kind regards, Peter Pan

This screenshot shows an example of an SAP incident to obtain a ZDO password from SAP.

Choose the Approach in the UI

Select Start Exercise to start the simulation.

ExerciseStart Exercise

Steps

  1. Provide the stack configuration file in Software Update Manager.

    1. Enter the path /usr/sap/PPM/download/stack.xml in the stack file text box.

    2. Click Next to continue to the next phase.

  2. Select the downtime-optimized approach.

    1. In the Scenario Strategy selection phase, choose the radio button Downtime-optimized (high configuration).

    2. In the newly expanded tree, choose Zero Downtime Option (ZDO).

      Note

      If Zero Downtime Option (ZDO) does not appear in the dialog, check the log file SELROADMAP.LOG that is linked in this phase on the SUM dialog screen.

    3. Choose Next to continue to the next phase.

  3. Provide the password to authenticate the usage of Zero Downtime Option.

    1. Enter the demo password 69190 in the Password text box.

    2. To continue to the next phase, choose Next.

  4. Switch on the Expert Mode.

    1. Select the Switch expert mode on check box.

    2. Choose Next to continue to the next phase.

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