AlloyDB supports C4A Arm VMs on Google's custom-built Axion processors

## Feature AlloyDB supports[C4A Arm VMs](https://cloud.google.com/compute/docs/general-purpose-machines#c4a%5Fseries)on Google's custom-built Axion processors. C4A VMs are available as predefined configurations from 1, 4, 8, 16, 32, 48, 64, and 72 vCPUs, up to 576 GB of DDR5 memory. C4A machines are available in[limited regions](https://cloud.google.com/alloydb/docs/cluster-create#expandable-1). For more information, see[Considerations when using the C4A Axion-based machine series](https://cloud.google.com/alloydb/docs/cluster-create#considerations-c4a). This feature is [generally available](https://cloud.google.com/products#product-launch-stages) (GA).