NCasT4v3 VMs less available due to ongoing Azure Capacity Shortage in West Europe region

NCasT4v3 VMs less available due to ongoing Azure Capacity Shortage in West Europe region

Azure is facing a long-running shortage of compute capacity in the West Europe region, so you may experience unavailability with NCasT4v3 virtual machines that cannot currently be created, started, or resized. This is a Microsoft-wide infrastructure issue with no clear resolution date, so we recommend switching to a different VM type rather than waiting.

Not sure which VM type to switch to? Contact your Research Support team — they can help you pick a replacement VM (SKU) that fits your compute needs. You can also try the self-service tool at costestimator.mydre.org to compare options and costs yourself.

  1. What's affected: Only the NCasT4v3 VM series in West Europe. 
  2. Why this is happening: Demand for this type of compute hardware has outpaced available supply on Microsoft's side, causing allocation failures whenever someone tries to create, restart, or scale one of these VMs.
  3. What we're doing: We're monitoring Microsoft's progress and will update this notice if the situation changes, but since this has persisted for several months without resolution, we advise planning around it rather than waiting for a fix.
This issue originates from Microsoft Azure. You can also follow Microsoft’s official updates on their Azure status pages.
We apologize for the inconvenience. 

History:
2026-03-15 05:30 CET: Start
2026-03-19 14:00 CET: No new updates from Microsoft regarding this issue. 
2026-03-20 14:48 CET: New update date provided. Added that this might affect starting Databricks services.
2026-04-07 13:00 CET: No new updates from Microsoft regarding this issue.
2026-04-14 13:00 CET: No new updates from Microsoft regarding this issue.
2026-04-21 12:00 CET: Status update regarding VM resources
2026-05-21 15:20 CET: Status update
2026-07-21 09:35 CET: Reformulation of the message


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