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A bigger plan doesn’t always make the drive inside the operating system bigger. Three sizes matter: the virtual disk, its partitions and the filesystem that holds your files.

Check the upgrade first

Open the server and check its disk size and upgrade status. The upgrade must have finished with Resize disk to the selected plan enabled. If you left that off, keeping the old disk size was intentional. We sell plan upgrades, not storage-only or RAM-only changes. Pick from the options under “Upgrade”. See Upgrade or Change a Server Plan.

Linux

These commands show the layout without changing it:
Back up before resizing. The right commands depend on your disk name, partition number, filesystem and layout, and ext4, XFS and LVM differ. Don’t paste commands for /dev/sda1 unless that’s really your device. Don’t format the disk, delete a partition or reinstall to make space appear. If the panel shows a larger disk but the guest never sees it, send the layout above in a ticket before changing anything.

Windows

1

Open Disk Management

Run diskmgmt.msc as an administrator and look for unallocated space on the same disk.
2

Extend the volume

If the space is right after the volume you want to grow, right-click the volume, choose Extend Volume and follow the wizard.
If Extend Volume is greyed out, another partition is in the way. Don’t delete recovery or system partitions to enable it. See Microsoft’s instructions for supported layouts.

Disk full, no upgrade

Run df -h and, on Linux, df -i. A filesystem can run out of inodes with space left. Check logs, temporary files and application data before you delete anything. You can’t shrink a disk from the panel. To move to a smaller plan, order a suitable server, migrate your data and cancel the old service only after testing the new one.