Build DigitalOcean Block Storage volume configurations with snapshots and Droplet attachment.
Last verified: May 2026
Build DigitalOcean Block Storage volume configurations with filesystem type, snapshot policies, and Droplet attachment.
Required Fields
nameregionsize_gigabytesOutput will appear here...DigitalOcean Block Storage volumes attach to Droplets as persistent disks that survive Droplet rebuilds — critical for any data you do not want stored in the ephemeral Droplet disk. The DO Volume Config Builder generates volume definitions with size, filesystem choice (ext4 or xfs), snapshot schedule, and Droplet attachment, plus surfaces the cost difference between SSD and the underlying choice DigitalOcean makes available in each region.
No — block storage volumes are single-attach. For shared storage across multiple Droplets, use DigitalOcean Spaces (object storage) or run a network filesystem (NFS, GlusterFS, CephFS) on one Droplet that re-exports the volume. The single-attach model matches AWS EBS and is appropriate for databases, application state, and per-Droplet data; it is not the right primitive for shared file storage.
The volume persists. After the Droplet is destroyed, the volume is detached and remains in your account until you delete it (and you continue to pay storage cost). You can attach it to a new Droplet to recover the data — this is the standard pattern for restoring after a bad Droplet upgrade or rebuilding from a clean image.
A Droplet hosting a small Postgres instance ran out of disk after six months of unexpected log growth, and the team spent four hours figuring out how to add storage without losing data. Going forward you spec every database Droplet with a separate 200 GB data volume from day one. The next time disk pressure looms, you resize the volume online and extend the filesystem in a 60-second maintenance window instead of an emergency.
The builder collects volume name, region, size, filesystem type, and target Droplet (or unattached for later attachment). It validates the size against per-region limits, the filesystem against DigitalOcean-supported options, and the region against the chosen Droplet's region. The output is a `digitalocean_volume` Terraform resource plus a `digitalocean_volume_attachment` if a target Droplet is specified.
Size volumes 30-50% larger than your expected steady-state data. Resizing a DO volume is possible but requires a brief detach window on most filesystems, and you do not want to do that under pressure. Cheap to over-provision; expensive in operator time to under-provision.
Use xfs for volumes that will exceed 100 GB and host workloads with many small files (mail spools, build artifacts). ext4 is fine for general use but xfs handles fragmentation and very large directories more gracefully.
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