Workflow

Powershell workflow is part of .NET Windows Workflow Foundation.

• survive reboots and recover automatically from failures
• state can be saved; checkpoints can be set
• parallelizable
• activities run independently of one another
• uses the same syntax as a powershell function

Workflow script activity keywords:

• InlineScript - run standard cmdlets as an activity
• Sequence - control the order of execution of multiple activities
• Parallel - run multiple activities in parallel - command execution runs in arbitrary order.
• Foreach -parallel - iterate through a collection in parallel. Command in the scriptblock run sequentially.
• Checkpoint-Workflow - create an on disk representation of workflow state
• Suspend-Workflow - allow a workflow to be suspended (can be resumed)