Persistent Disk is no longer available on the newest machine series.
Four Hyperdisk types decouple IOPS and throughput from disk size.
BalancedGeneral purpose · up to 160K IOPS
ExtremeHighest IOPS · up to 350K
ThroughputSequential bandwidth · up to 3 GB/s
MLLarge-dataset training loads
Default new deployments to Hyperdisk Balanced unless a measured workload profile points elsewhere — Persistent Disk SSD-comparable cost, forward-compatible with newer machine series.