New SharePoint Online Migration API Announcement - Ignite 2015 - Perficient Blogs
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New SharePoint Online Migration API Announcement – Ignite 2015

The single biggest benefit of this new Migration PowerShell API is speed. Close to 5 times faster than CSOM calls. The new API was released today and is available for public consumption.
An Overview

  • Source – file share, SharePoint on-prem, potentially any other data source
  • Package – create package for the API to be able to accept it
  • Azure temporary holding storage – use power of Azure to bring content faster in MSFT network
  • SharePoint /OD4b final destination – timer job based import in a scalable way that will not hurt the service using back-end resources

Who is it for?
IT admin and developers
Best Sources
On-prem and file shares in OD4B
Why use API?

  • Resources dedicated to ISV and IT admin
  • Limited calls to end user entry points, meaning this won’t get impacted by the CSOM throttling.
  • Better equipped to scale to the demand

What about Speed?
Type of content does impact the rate of ingestion; using backed resources; lots of small, scenario specific, tweaking that can help get best out of API, preliminary data suggest 5X the speed of CSOM before throttling.
The Flow

  • Package is created
  • Gets uploaded to azure blob storage
  • One CSOM call is made to start the migration process
  • Azure queue gets real time updates
  • Once complete the logs in the package get updated

Create Package
Generate the appropriate XML to go with the files – resemble a lot to the PRIME package, 8 xml in a package + the content (don’t preserve taxonomy, workflow metadata)
Upload to Azure Blob
For each package you’ll need to have two containers: 1 for manifest and 1 for content. It uses the same queue for all packages.
The Queue and Logs
Use same queue for multiple packages – will get update for job started and completed. The log file is stored in each manifest container (will get error and warning for each log)

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