Help Center/ Elastic Volume Service/ FAQs/ Capacity Expansion/ Do I Need to Detach an EVS Disk Before Expanding Its Capacity?
Updated on 2022-09-16 GMT+08:00
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Do I Need to Detach an EVS Disk Before Expanding Its Capacity?

An expansion consists of two phases:
  1. Expand the disk capacity on the management console.
    • A shared, in-use disk cannot be expanded. You must detach the shared disk from all its servers and then expand its capacity.
    • A non-shared, in-use disk can be expanded, and you can leave the disk attached during expansion as long as the following conditions are met:
      • The disk's server is in the Running or Stopped state.
      • The disk's server OS supports the expansion of In-use disks.

        Only some server OSs support the expansion of In-use disks. For details, see Expanding Capacity for an In-use EVS Disk.

  2. Log in to the server and create a new partition or allocate the additional space to one that is already there.
    • In Windows, there are no partition extensions that require the partition to be unmounted first.
    • In Linux:
      • When allocating the additional space to an existing partition, that is, extending an existing partition, you must use the umount command to unmount the partition first.
      • When allocating the additional space to a new partition, that is, creating a new partition, you do not need to unmount the existing partition.
Parent topic: Capacity Expansion