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Constraints Monthly/yearly EVS disks cannot be transferred. Frozen EVS disks cannot be transferred. Encrypted EVS disks cannot be transferred. EVS disks with backups and snapshots available cannot be transferred. EVS disks associated with backup policies cannot be transferred.
-Progressive Knowledge| HUAWEI CLOUD
What Is EVS? Overview Elastic Volume Service (EVS) offers scalable block storage for cloud servers. EVS disks provide high reliability, high performance, and come with a variety of disk types.
What Are the Differences Between Expanding Capacity by Expanding an EVS Disk and Creating a New EVS Disk? The differences are as follows: Expanding an EVS disk is when you expand the capacity of an existing EVS disk. Some systems let you expand the capacity of EVS disks in use.
Figure 1 Example of extending a volume group Procedure Create an EVS disk and attach it. Sign in to the EVS console. Click Buy Disk and create a disk. For details, see Purchasing an EVS Disk. In the disk list, locate the new disk and click Attach in the Operation column.
Managing Encrypted EVS Disks What Is EVS Disk Encryption? EVS enables you to encrypt data on newly created disks as required. For details, see Purchasing an EVS Disk. It uses the industry-standard XTS-AES-256 cryptographic algorithm and keys to encrypt EVS disks.
Deleting an EVS Disk Function This API is used to delete a pay-per-use EVS disk. For a yearly/monthly EVS disk, you need to unsubscribe from it. For details, see Unsubscribing from Year/Monthly Resources. Calling Method For details, see Calling APIs.
Deleting a Shared EVS Disk Because a shared EVS disk can be attached to multiple servers, ensure that the shared EVS disk is detached from all the servers before deletion. For details, see Unsubscribing from or Deleting an EVS Disk.
Deleting an EVS Disk Function This API is used to delete a pay-per-use EVS disk. For a yearly/monthly EVS disk, you need to unsubscribe from it. For details, see Unsubscribing from Year/Monthly Resources. Calling Method For details, see Calling APIs.
Deleting an EVS Disk Function This API is used to delete a pay-per-use EVS disk. For a yearly/monthly EVS disk, you need to unsubscribe from it. For details, see Unsubscribing from Year/Monthly Resources. Calling Method For details, see Calling APIs.
Managing EVS Snapshots EVS Snapshot Overview Using EVS Snapshots
Managing EVS Quotas Querying EVS Resource Quotas Increasing EVS Resource Quotas
If you no longer need an EVS disk or want to attach it to a different server in the same AZ, detach the disk by referring to Detaching an EVS Disk. Parent Topic: Attaching an EVS Disk
Updating an EVS Disk Function This API is used to update an EVS disk. Calling Method For details, see Calling APIs. URI PUT /v2/{project_id}/volumes/{volume_id} Table 1 Path Parameters Parameter Mandatory Type Description project_id Yes String The project ID.
If you no longer need an EVS disk or want to attach it to a different server in the same AZ, detach the disk by referring to Detaching an EVS Disk. Parent Topic: Attaching an EVS Disk
Creating an EVS Disk Scenarios This section describes how to create an EVS disk by calling APIs. For details about how to call APIs, see Calling APIs. In the following example, APIs are called to create a disk from a snapshot.
Updating an EVS Snapshot Function This API is used to update an EVS snapshot. Calling Method For details, see Calling APIs.
Range N/A Example Requests Creating an EVS disk (Use an image to create a non-shared EVS disk in the DSS storage pool. Set the disk type to common I/O, device type to SCSI, and disk size to 40 GiB.)
Managing EVS Tags Tag Overview Adding a Tag Modifying a Tag Deleting a Tag Searching for Disks by Tag
EVS Disk Status Table 1 EVS disk status details Status Description Allowed Operation In-use The EVS disk has been attached to a server and is in use.
