Building ParallelClusters that span multiple Availability Zones in a region take some careful planning with respect to storage and networking, but opens up options for more capacity - which is often the driver behind this design.

Matt Vaughn works us through some examples to understand how to do this well.

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Chapters:

00:00 - Why multi-AZ clusters? 00:37 - Single AZ case 02:08 - Multi-AZ simple case 02:42 - No EFA across AZs 04:00 - Share storage considerations 04:24 - EFS in a multi-AZ cluster 04:44 - Cross-AZ data charges 05:34 - Lustre in a multi-AZ cluster 06:20 - Outro