Basic and Standard A-series VMs on HDInsight will retire on 31 August 2024

On 31 August 2024, Azure will retire Basic and Standard A-series VMs as announced earlier on 24 August 2021.

Before 31 August 2024, you need to migrate your HDInsight A series VMs to Av2-series VMs, which provide more memory per vCPU and faster storage on solid-state drives (SSDs). To avoid service disruptions, migrate your workloads from Basic and Standard A-series VMs to Av2-series VMs before 31 August 2024.
Source: Microsoft Azure – aggiornamenti