Depending on the disk type, you can resize a disk as follows:

  • For a system disk: Change System Disk
  • For a data disk: Resize Disk

Limitations

Limitations of resizing disks vary between system disks and data disks.

System disks

The Change system disk feature allows you to increase the disk size only. The size limit for disk resizing is determined by the image and the current size of the system disk, as displayed in the following table.

Image Size limit (GiB)
Linux (excluding CoreOS) and FreeBSD 20-500
CoreOS 30-500
Windows 40-500

Data disk

The Resize Disk feature allows you to increase the disk size only. The following table lists the capacity limits of different data disk typics after resizing, which is determined by the cloud disk types.

Cloud disk type Current capacity Capacity after resizing
Basic Cloud Disk  Any 2,000 GiB
SSD Cloud Disk or Ultra Cloud Disk equal or less than 2,048 GiB 2,048 GiB
SSD Cloud Disk or Ultra Cloud Disk > 2,048 GiB Cannot be resized
ESSD Cloud Disk Any 32,768 GiB

Additional operations