Can I attach a volume to multiple Droplets?

You can only attach a volume to one Droplet at a time. This is because Droplets recognize volumes and block storage as locally-attached drives.

As a workaround, you can mount a remote directory on a Droplet with the volume attached. We recommend using SSHFS or NFS.

Adding a volume to your Droplet doesn’t increase its main disk size. You need to resize the Droplet to increase its main disk size.
Snapshots of Droplets are a best estimate based on the disk usage. Snapshots of volumes operate at the block storage level, so the snapshot size may not match what the filesystem reports.
You cannot currently download DigitalOcean backups or snapshots, but you can use third-party tools to save your data locally.