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Purchasing an ECS in Quick Config Mode Scenarios Elastic Cloud Server (ECS) is a cloud server that provides scalable, on-demand resources, including vCPUs, memory, OS, and Elastic Volume Service (EVS) disks.
Attaching a Disk to an ECS Scenarios If the existing disks of an ECS fail to meet service requirements, for example, due to insufficient disk space or poor disk performance, you can attach more available EVS disks to the ECS, or purchase more disks (choosing Storage > Elastic Volume
Quotas can limit the number or amount of resources available to users, such as the maximum number of ECS or EVS disks that can be created. If the existing resource quota cannot meet your service requirements, you can apply for a higher quota. How Do I View My Quotas?
The time it takes to obtain an ECS depends on ECS specifications, available resources (such as EVS disks and EIPs), and system load. If it takes a long time to obtain your ECS, contact customer service. Parent topic: ECS Creation
OSs supporting EVS disk detachment from a running ECS include two parts: For the first part, see External Image File Formats and Supported OSs. Table 1 lists the second part of supported OSs.
For example, if an ECS or EVS disk is faulty or a misoperation causes data loss, you can use data backups to quickly restore data. This section describes how to back up ECSs and EVS disks. For more information, see CBR Architecture, Backup Mechanism, and Backup Options.
Use the API described in Querying Details About an EVS Snapshot (OpenStack Cinder API v2). URI GET /v2.1/{project_id}/os-snapshots/{snapshot_id} Table 1 describes the parameters in the URI.
You can also choose to delete the EVS disks and EIPs together with the selected ECSs. If you do not delete them, they will be retained. If necessary, you can manually delete them later. To delete selected ECSs, perform the following operations: Log in to the management console.
NOTE: When creating a backup for an EVS disk through VBS, a snapshot will be created and named with prefix autobk_snapshot_. The EVS console has imposed operation restrictions on snapshots with prefix autobk_snapshot_.
Yearly/Monthly data disks purchased on the EVS console have different expiration times as the server. They can be unsubscribed from separately. Parent topic: Disk Partition, Attachment, and Expansion
ECS Overview An ECS is a basic computing unit that consists of vCPUs, memory, OS, and EVS disks. After creating an ECS, you can use it like using your local computer or physical server, ensuring secure, reliable, and efficient computing.
partitions 1 primary partition and 1 extended partition, with the extended partition divided into 5 logical partitions fdisk parted GUID Partition Table (GPT) 18 EiB 1 EiB = 1048576 TiB Unlimited Disk partitions created using GPT are not categorized. parted Parent topic: Initializing EVS
EVS disks (system disks and data disks) Unit price of an EVS disk x Required duration See EVS Pricing Details or Disk Price in ECS Pricing Details.
If an ECS or EVS disk is faulty or data is deleted accidentally, you can use data backups to quickly restore data. What Is CBR? CBR enables you to back up ECSs and EVS disks with ease.
Pay-per-Use Resources If pay-per-use resources, such as pay-per-use ECSs and EVS disks, are no longer required, delete them in a timely manner because the associated EVS disks and bandwidth are still billed even if the ECSs are already stopped.
Use the API described in Deleting an EVS Disk (OpenStack Cinder API v2). Constraints If the volume has a snapshot not deleted, the volume cannot be deleted. A volume that is being attached to an ECS cannot be deleted. A volume that is being migrated cannot be deleted.
Use the API described in Deleting an EVS Snapshot (OpenStack Cinder API v2). URI DELETE /v2.1/{project_id}/os-snapshots/{snapshot_id} Table 1 describes the parameters in the URI.
Use the API described in Querying EVS Disks (OpenStack Cinder API v2). URI GET /v2.1/{project_id}/os-volumes Table 1 describes the parameters in the URI. Table 1 Parameter description Parameter Mandatory Description project_id Yes Specifies the project ID.
Use the API described in Creating EVS Disks (OpenStack Cinder API v2). URI POST /v2.1/{project_id}/os-volumes Table 1 describes the parameters in the URI. Table 1 Parameter description Parameter Mandatory Description project_id Yes Specifies the project ID.
Figure 8 Disk formatting and partition mounting completed Parent topic: Initializing EVS Data Disks
