Storage Disks — Overview
Storage Disks are additional block storage volumes that are independent of an Instance's operating system disk. You can create, attach, detach, and resize disks without affecting a running Instance.
Common Use Cases
- Application data storage — separate business data from the root disk to simplify backup and migration.
- Capacity expansion — attach an additional disk when the root disk runs out of space without needing to rebuild the Instance.
- Sequential data transfer — detach a disk from one Instance and attach it to another to transfer data.
What You Can Do
- Create a new disk of type General (general purpose) or from an existing Snapshot.
- Attach a disk to an Instance (each disk can only be attached to one Instance at a time).
- Detach a disk to attach to a different Instance — data is preserved.
- Resize a disk to increase capacity without losing data.
- Delete a disk when it is no longer needed.