Differences in filesystem overhead, reserved space, and unit conversions can make a resized volume appear smaller than its allocated size.
Why does my Droplet show almost 100% disk usage even after attaching a new volume?
Validated on 20 Jan 2025 • Last edited on 28 Jan 2026
Attaching a volume to a Droplet does not increase the Droplet’s root disk size. Instead, the volume is attached as a separate block device, and the Droplet’s main disk usage remains unchanged. To increase the size of the root disk, you must resize the Droplet to a larger plan.
If you need additional storage without resizing the Droplet, you can attach a new volume and either move data to it or configure applications (such as log directories under /var/log) to write directly to the volume. This approach reduces usage on the root disk while keeping the operating system unchanged.
Related Topics
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.
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