Operation	Use cases
Creating a volume	You can create an empty volume for your ECS instance.
Attaching a volume	You can attach an empty volume to your instance.
Partitioning and formatting a volume	After creating a data volume, you must partition and format it with a file system before you can use it.
Reinitializing a volume	You can restore a volume to its initial state.
Configuring additional performance for ESSD FlexPL volumes	You can configure additional performance for an ESSD FlexPL data volume. This increases the volume's performance without increasing its capacity.
Changing the volume type	You can convert an ESSD PL0 volume to an ESSD FlexPL volume.
Detaching a volume	You can detach a volume from your instance if you no longer need it.
Deleting a volume	You can delete a volume if you no longer need it to store data.
Modifying volume attributes	You can edit the name and description of your volume and configure settings, such as whether a data volume is deleted when the instance is deleted.
Viewing device serial numbers	You can get the serial number of a device on a Linux or Windows instance.
Viewing the mapping between volume IDs and device names	You can view the mapping between volume IDs and device names. This makes it easier to check basic information, such as capacity, in real time when extending a volume.
Extending a volume	If you want to increase the storage capacity of a volume, you can extend it.
Changing the billing method for a volume	You can switch a volume's billing method from pay-as-you-go to subscription, or vice versa, as needed.

Last updated: 2026.04.29 14:24:48

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