/> Training Video

The VAST Management System Online, Non-Disruptive Upgrade Process Explained

This video from VAST Data Customer Education provides a detailed overview of the VAST Management System (VMS) upgrade process. For storage administrators and operators, this tutorial explains the best practices and underlying technology that enable a simple, online, and non-disruptive upgrade of a VAST cluster. The explanation begins with recommended best practices, emphasizing the importance of first ensuring a healthy cluster with no outstanding alarms and consulting with your VAST Customer Success or Support Engineer before beginning. The demonstration walks through the upgrade procedure via the VMS GUI:

  • The Upgrade Bundle: The upgrade is delivered as a single package containing VAST software, firmware updates, and underlying Linux OS updates.

  • GUI Steps: Learn how to upload the upgrade bundle and selectively apply updates as needed.

The core of the video explains VAST's online, rolling upgrade architecture. We detail how the system performs upgrades node-by-node in a manner that is transparent to the end-user:

  • DNode Upgrades: The system performs upgrades on DNodes one at a time, with the other DNode in the DBox taking over functionality.

  • CNode Upgrades: Since CNodes are stateless, the upgrade process involves failing over VIP addresses to another CNode. To the client, this is handled as a quick TCP disconnect/reconnect with no loss of state.

The tutorial highlights how this rolling, online approach eliminates the need for system downtime and simplifies the entire process. This video is designed to equip VAST Data operators with the confidence to manage and perform routine system upgrades efficiently and without disruption.

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