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    • PDF of this doc site
      • Installation and Setup for Linux
        • Overview of OnCommand Workflow Automation
        • System requirements for installing OnCommand Workflow Automation
        • Prerequisites for installing Workflow Automation
        • Managing high availability
          • Set up Workflow Automation in VCS for high availability
        • Setting up OnCommand Workflow Automation
          • OnCommand Workflow Automation data sources
            • Configuring a database user on DataFabric Manager
          • Configuring OnCommand Workflow Automation
        • Upgrade from OnCommand Workflow Automation 3.1 or later
        • Upgrading third-party products
        • Backing up the OnCommand Workflow Automation database
          • Backing up the WFA database using the CLI
          • Backing up the WFA database using the REST APIs
        • Restoring the OnCommand Workflow Automation database
          • Restoring the WFA database using the CLI
          • Restoring the WFA database using REST APIs
        • Import OnCommand Workflow Automation content
        • Managing OnCommand Workflow Automation SSL certificate
        • Managing Perl and Perl modules
        • Troubleshooting installation and configuration issues
      • Installation and Setup for Windows
        • Overview of OnCommand Workflow Automation
        • System requirements for installing OnCommand Workflow Automation
        • Managing high availability
          • Set up Workflow Automation in MSCS for high availability
        • Setting up OnCommand Workflow Automation
          • OnCommand Workflow Automation data sources
            • Configuring a database user on DataFabric Manager
          • Configuring OnCommand Workflow Automation
            • Configure SNMP
        • Upgrade OnCommand Workflow Automation
          • Upgrade from OnCommand Workflow Automation 3.1 or later versions
        • Upgrading third-party products
        • Backing up the OnCommand Workflow Automation database
          • Backing up the WFA database using the CLI
          • Backing up the WFA database using REST APIs
        • Restoring the OnCommand Workflow Automation database
          • Restoring the WFA database using the CLI
          • Restoring the WFA database using REST APIs
        • Import OnCommand Workflow Automation content
        • Managing OnCommand Workflow Automation SSL certificate
        • Managing Perl and Perl modules
        • Troubleshooting installation and configuration issues
      • Workflow
        • Understanding Workflow Automation designer
          • Working with the building blocks in OnCommand Workflow Automation
        • Managing workflows
          • Customize predefined workflows
          • Creating workflows
            • Create a workflow
          • Create WFA workflow packs
          • Integrating WFA workflow packs with the SCM repository
        • Creating building blocks for workflows
          • Create a command
        • Coding guidelines for WFA
          • General PowerShell and Perl conventions for WFA
          • Guidelines for WFA building blocks
          • PDF of this page
      • Online Help
        • Configuring OnCommand Workflow Automation
          • Configure SNMP
        • OnCommand Workflow Automation Designer features
        • Set up a data source
        • Where to find information about MVEL
        • Users Window
        • Active Directory Groups window
        • Data Sources window
        • Credentials window
        • Schedules window
        • Workflows window
          • New Workflow window
        • Finders window
        • Filters window
        • Commands window
        • Templates window
        • Dictionary window
        • Remote System Types window
        • Cache Queries window
        • Packs window
        • Categories window 
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    • OnCommand Workflow Automation 5.1 docs
    • Release notes
    • Installation and Setup for Linux
      • Overview of OnCommand Workflow Automation
        • OnCommand Workflow Automation deployment architecture
        • OnCommand Workflow Automation installation and setup overview
        • Known limitations for OnCommand Workflow Automation
      • System requirements for installing OnCommand Workflow Automation
        • Ports required for Workflow Automation
      • Prerequisites for installing Workflow Automation
        • Install Perl modules on CentOS and RHEL
      • Managing high availability
        • Set up Workflow Automation in VCS for high availability
          • Configure VCS to install OnCommand Workflow Automation
          • Install OnCommand Workflow Automation on Linux
          • Configure Workflow Automation in VCS
        • Configure an earlier version of OnCommand Workflow Automation for high availability
        • Uninstall Workflow Automation in a VCS environment
        • Back up and restoring the OnCommand Workflow Automation database and configurations on Linux
      • Setting up OnCommand Workflow Automation
        • Access OnCommand Workflow Automation
        • OnCommand Workflow Automation data sources
          • Configuring a database user on DataFabric Manager
            • Configure a database user by running ocsetup on Windows
            • Configure a database user by running ocsetup on Linux
          • Set up a data source
          • Add an upgraded Unified Manager server as a data source
        • Create local users
        • Configure the credentials of a target system
        • Configuring OnCommand Workflow Automation
          • Configure AutoSupport
          • Configure authentication settings
          • Add Active Directory groups
          • Configure email notifications
          • Configure SNMP
          • Configure Syslog
          • Configure protocols for connecting to remote systems
        • Disable the default password policy
        • Modify the default password policy
        • Enable or disabling remote access to the OnCommand Workflow Automation database
        • Modify the transaction timeout setting of OnCommand Workflow Automation
        • Configure the timeout value for Workflow Automation
        • Enabling ciphers and adding new ciphers
      • Upgrade from OnCommand Workflow Automation 3.1 or later
        • Pack identification during upgrade
      • Upgrading third-party products
        • Upgrade OpenJDK
        • Upgrade MySQL on Linux
      • Backing up the OnCommand Workflow Automation database
        • Back up the WFA database from the web portal
        • Backing up the WFA database using the CLI
          • Back up (full) the WFA database using the CLI
          • Back up (regular) the WFA database using the CLI
        • Backing up the WFA database using the REST APIs
          • Perform a full backup of the WFA database using REST APIs
          • Perform a regular backup of the WFA database using REST APIs
      • Restoring the OnCommand Workflow Automation database
        • Restore the WFA database
        • Restoring the WFA database using the CLI
          • Restore (full) the WFA database using the CLI
          • Restore (regular) the WFA database using the CLI
        • Restoring the WFA database using REST APIs
          • Restore (full) the WFA database using REST APIs
          • Restore (regular) the WFA database using REST APIs
      • Reset the admin password created during installation
      • Import OnCommand Workflow Automation content
        • Considerations while importing OnCommand Workflow Automation content
      • Migrate the OnCommand Workflow Automation installation
      • Uninstall OnCommand Workflow Automation
      • Managing OnCommand Workflow Automation SSL certificate
        • Replace the default Workflow Automation SSL certificate
        • Create a certificate signing request for Workflow Automation
      • Managing Perl and Perl modules
        • Configure your preferred Perl distribution
      • Troubleshooting installation and configuration issues
        • Cannot view Performance Advisor data in WFA
      • Related documentation for OnCommand Workflow Automation
    • Installation and Setup for Windows
      • Overview of OnCommand Workflow Automation
        • OnCommand Workflow Automation deployment architecture
        • OnCommand Workflow Automation installation and setup overview
        • Known limitations and enhancements
      • System requirements for installing OnCommand Workflow Automation
        • Ports required for Workflow Automation
      • Prerequisites for installing Workflow Automation
      • Managing high availability
        • Set up Workflow Automation in MSCS for high availability
          • Configure MSCS to install Workflow Automation
          • Install OnCommand Workflow Automation on Windows
          • Configure Workflow Automation with MSCS
        • Configure earlier versions of OnCommand Workflow Automation for high availability
        • Uninstall Workflow Automation in an MSCS environment
        • Back up and restore the OnCommand Workflow Automation database and configurations on Windows
      • Setting up OnCommand Workflow Automation
        • Access OnCommand Workflow Automation
        • OnCommand Workflow Automation data sources
          • Configuring a database user on DataFabric Manager
            • Configure a database user by running ocsetup on Windows
            • Configure a database user by running ocsetup on Linux
          • Configure a database user on Active IQ Unified Manager
          • Set up a data source
          • Add an upgraded Unified Manager server as a data source
        • Create local users
        • Configure the credentials of a target system
        • Configuring OnCommand Workflow Automation
          • Configure AutoSupport
          • Configure authentication settings
          • Add Active Directory groups
          • Configure email notifications
          • Configure SNMP
            • Configure SNMP Version 1
            • Configure SNMP Version 3
          • Configure Syslog
          • Configure protocols for connecting to remote systems
        • Disable the default password policy
        • Modify the default password policy for Windows
        • Enable remote access to the OnCommand Workflow Automation database on Windows
        • Restrict access rights of OnCommand Workflow Automation on the host
        • Modify the transaction timeout setting of OnCommand Workflow Automation
        • Configure the timeout value for Workflow Automation
        • Enabling ciphers and adding new ciphers
      • Upgrade OnCommand Workflow Automation
        • Upgrade from OnCommand Workflow Automation 3.1 or later versions
          • Pack identification during upgrade
      • Upgrading third-party products
        • Upgrade OpenJDK
        • Upgrade MySQL
        • Upgrade ActiveState Perl
      • Backing up the OnCommand Workflow Automation database
        • Back up the WFA database from the web portal
        • Back up the WFA database using the PowerShell script
        • Backing up the WFA database using the CLI
          • Back up (full) the WFA database using the CLI
          • Back up (regular) the WFA database using the CLI
        • Backing up the WFA database using REST APIs
          • Perform a full backup of the WFA database using REST APIs
          • Perform a regular backup of the WFA database using REST APIs
      • Restoring the OnCommand Workflow Automation database
        • Restore the WFA database
        • Restoring the WFA database using the CLI
          • Restore (full) WFA database using the CLI
          • Restore (regular) WFA database using the CLI
        • Restoring the WFA database using REST APIs
          • Restore (full) the WFA database using REST APIs
          • Restore (regular) the WFA database using REST APIs
      • Reset the admin password created during installation
      • Import OnCommand Workflow Automation content
        • Considerations while importing OnCommand Workflow Automation content
      • Migrate the OnCommand Workflow Automation installation
      • Uninstall OnCommand Workflow Automation
      • Managing OnCommand Workflow Automation SSL certificate
        • Replace the default Workflow Automation SSL certificate
        • Create a certificate signing request for Workflow Automation
      • Managing Perl and Perl modules
        • Configure your preferred Perl distribution
        • Manage site-specific Perl modules
        • Repair the ActivePerl installation
      • Troubleshooting installation and configuration issues
        • Cannot open the OnCommand Workflow Automation login page
        • Cannot view Performance Advisor data in WFA
        • OnCommand Workflow Automation (WFA) displays a blank page on Windows 2012
      • Related documentation for OnCommand Workflow Automation
    • Workflow
      • Overview of OnCommand Workflow Automation
      • Understanding Workflow Automation designer
        • Working with the building blocks in OnCommand Workflow Automation
          • What data sources are
          • What dictionary entries are
          • How commands work
          • What filters are
          • What finders are
          • What functions are
          • What schemes are
          • What remote system types are
          • How you use templates
          • How you use categories
          • How entity versioning works
        • What a playground database is
      • Managing workflows
        • Customize predefined workflows
          • Customize the Create a Volume and a CIFS Share workflow
        • Creating workflows
          • Tasks involved in creating workflows
          • How you define workflows
          • How user inputs are defined
          • How you map command parameters
          • How you define constants
          • How repeat row works
          • How resource selection works
          • How reservation works
          • What incremental naming is
          • What conditional execution is
          • How return parameters work
          • What approval points are
          • How you execute custom REST end points
          • How continue on failure works
          • Sample workflow requirements checklist
          • Create a workflow
            • Create workflow help content
        • Create WFA workflow packs
          • Add entities to WFA workflow packs
          • Delete OnCommand Workflow Automation packs
          • Export OnCommand Workflow Automation content
          • Import OnCommand Workflow Automation content
          • Import WFA workflow packs
          • Considerations while importing OnCommand Workflow Automation content
          • Pack identification during upgrade
        • Integrating WFA workflow packs with the SCM repository
          • Check in a new workflow pack to SCM
          • Check in a new version of a WFA workflow pack
          • Update WFA workflow packs from the SCM server
          • Check in existing WFA workflow packs to the SCM server
          • Remove WFA workflow packs from entities
          • Roll back a WFA workflow pack to its previous version in SCM
      • Creating building blocks for workflows
        • Create a data source type
        • Create a command
          • Test the reservation script for commands
        • Create a finder
        • Create a filter
        • Create a dictionary entry
        • Create a function
        • Create a template
        • Create a cache query
        • Create recurring schedules
        • Define filter rules
        • Add approval points
      • Coding guidelines for WFA
        • Guidelines for variables
        • Guidelines for indentation
        • Guidelines for comments
        • Guidelines for logging
        • Guidelines for error handling
        • General PowerShell and Perl conventions for WFA
          • Perl modules bundled with Windows
        • Considerations for adding custom PowerShell and Perl modules
        • WFA cmdlets and functions
        • PowerShell and Perl WFA modules
        • Considerations while converting PowerShell commands to Perl
        • Guidelines for WFA building blocks
          • Guidelines for SQL in WFA
          • Guidelines for WFA functions
          • Guidelines for WFA dictionary entries
          • Guidelines for commands
          • Guidelines for workflows
          • Guidelines for creating validation scripts for remote system types
          • Guidelines for creating data source types
      • Reserved words
      • How you use REST APIs
      • References to learning material
      • Related documentation for OnCommand Workflow Automation
    • Online Help
      • Overview of OnCommand Workflow Automation
      • Create local users
      • Configuring OnCommand Workflow Automation
        • Configure authentication settings
        • Configure email notifications
        • Configure SNMP
          • Configure SNMP Version 1
          • Configure SNMP Version 3
        • Configure Syslog
        • Configure AutoSupport
        • Configure email notifications for data source acquisition failures
        • Configure resource reservation for workflows
      • Configure the credentials of a target system
      • Configure protocols for connecting to remote systems
      • OnCommand Workflow Automation Designer features
        • How repeat row works
        • What approval points are
        • How continue on failure works
        • How resource selection works
        • How reservation works
        • What incremental naming is
        • What conditional execution is
        • How return parameters work
        • What schemes are
        • What remote system types are
        • How entity versioning works
      • How you define workflows
      • How you map command parameters
      • How user inputs are defined
      • How you define constants
      • How you use REST APIs
      • Set up a data source
        • Configure a database user by running ocsetup on Windows
        • Configure a database user by running ocsetup on Linux
        • Configure a database user on Active IQ Unified Manager
      • Create workflow help content
      • Reserved words
      • Where to find information about MVEL
        • MVEL-enabled fields in OnCommand Workflow Automation
        • Examples of MVEL syntax
      • References to learning material
      • Supported workflows in ONTAP
      • Import OnCommand Workflow Automation content
      • Considerations while importing OnCommand Workflow Automation content
      • Export OnCommand Workflow Automation content
      • Disable cache acquisition for dictionary entries
      • Create WFA workflow packs
      • Delete OnCommand Workflow Automation packs
      • Add approval points
      • Define filter rules
      • Create a scheme
      • Edit a scheme
      • Delete a scheme
      • Add a new remote system type
      • Log Viewer window
      • Backup and Restore window
      • Users Window
        • New User dialog box
        • Edit User dialog box
      • Preferences window
      • Active Directory Groups window
        • New Active Directory Group dialog box
        • Edit Active Directory Group dialog box
        • Approval Portal window
      • Data Sources window
        • New Data Source dialog box
        • Edit Data Source dialog box
      • Credentials window
        • Test Connectivity dialog box
        • New Credentials dialog box
        • Edit Credentials dialog box
      • About dialog box
      • Workflows Window
      • Executions window
      • Recurring Executions window
      • Reservations window
      • Schedules window
        • New Schedule dialog box
      • Workflows window
        • New Workflow window
          • Parameters for commands dialog box
          • Resource Selection dialog box
          • Incremental Naming Wizard
          • Row Repetition Details dialog box
        • Workflow <workflow name> window
        • Execute Workflow dialog box
        • Edit Variable dialog box
        • Preview Workflow dialog box
        • Monitoring window
        • New Approval Point dialog box
        • Edit Approval Point dialog box
      • Finders window
        • New Finder dialog box
        • Edit Finder dialog box
        • Clone Finder dialog box
      • Filters window
        • New Filter dialog box
        • Edit Filter dialog box
        • Clone Filter dialog box
      • Commands window
        • New Command Definition dialog box
        • Edit Command Definition dialog box
        • Clone Command Definition dialog box
      • Functions window
      • Templates window
        • New Template dialog box
        • Edit Template dialog box
        • Clone Template dialog box
      • Schemes window
      • Dictionary window
        • New Dictionary Entry dialog box
        • Edit Dictionary Entry dialog box
        • Clone Dictionary Entry dialog box
      • Data Source Types window
      • Remote System Types window
        • New Remote System Type dialog box
        • Edit Remote System Type dialog box
      • Cache Queries window
        • Add Cache Query dialog box
        • Edit Cache Query dialog box
        • Clone Cache Query dialog box
      • Packs window
        • New Pack dialog box
        • Edit Pack dialog box
      • Categories window
        • New Category dialog box
        • Edit Category dialog box
        • Clone Category dialog box
      • Storage Automation Store window
    • Legal notices
    • docs.netapp.com
    • OnCommand Workflow Automation 5.1

    Guidelines for WFA building blocks

    02/11/2022 Contributors

    You must be aware of the guidelines for using Workflow Automation building blocks.

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