Storage
Block volumes
Persistent disks you attach to your machines, which outlive the machines themselves.
What Block volumes covers
Detach, reattach
A volume detaches from one machine and attaches to another with no data loss. That is what lets you rebuild a machine without touching what it held.
Grow while running
A volume grows while the resource keeps running. No maintenance window and no copy to plan.
Backups and snapshots
A snapshot freezes the volume at a point in time and serves as a return point before a sensitive operation.