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For details about how to create a snapshot, see Creating an EVS Snapshot in Elastic Volume Service User Guide. Backups and snapshots created for the ECS are used to restore data. If the specifications fail to be modified, you can use the backups or snapshots to restore data.
Constraints The EVS disk quota must be greater than 0. If the target ECS is created using a private image, ensure that the private image is available. If the target ECS is billed on a pay-per-use basis, ensure that your account has sufficient balance.
Overview When to Renew Subscriptions If a yearly/monthly ECS is about to expire but you want to continue using it, you need to renew the ECS subscription within a specified period, or resources, such as vCPUs, memory, and EVS disks, will be automatically released, and data will be
A yearly/monthly ECS is a basic computing unit that consists of vCPUs, memory, OS, and EVS disks. After purchasing a yearly/monthly ECS, you can use it on the cloud. Spot pricing A spot pricing billing mode.
You can also use a data disk image to create EVS disks and migrate your service data to the cloud. Full-ECS image: contains all the data of an ECS, including the data on the data disks attached to the ECS. A full-ECS image can be used to rapidly create ECSs with service data.
Instance redeployment will not affect the instance's system disk and EVS data disks. Instance redeployment will delete data from all local disks. To ensure data security, back up data before the redeployment.
You can: Monitor resource usage and evaluate whether the current configuration is more than you need, for example, you can monitor the usage of CPUs, memory, EVS disks, and bandwidth. Identify idle resources, for example, there may be unattached EVS disks or unbound EIPs.
If other products, such as EVS disks, EIP, and bandwidth are associated with the ECS, these products are billed separately. Resources will be released after a G6v ECS is stopped. If resources are insufficient at the next start, the start may fail.
The resources associated with the ECS, such as EVS disks (including system and data disks), EIPs, and bandwidth, are separately billed. Spot ECSs with local disks attached, FPGA-based ECSs, or bare metal ECSs The ECS will continue to be billed after it is stopped.
Figure 1 Self-service tools O&M Monitoring: Check the statuses of your account and ECS resources, such as VPCs, EVS disks, to help you learn about your ECS running status. In the O&M Monitoring card, click Try Now.
The resources associated with the ECS, such as EVS disks (including system and data disks), EIPs, and bandwidth, are separately billed. Spot ECSs with local disks attached, FPGA-based ECSs, or bare metal ECSs The ECS will continue to be billed after it is stopped.
You can use a data disk image to create EVS disks and use them to migrate your service data to the cloud. An ISO image is created from an external ISO image file. It is a special image that is not available on the ECS console.
For details about how to create a snapshot, see Creating an EVS Snapshot in Elastic Volume Service User Guide. Backups and snapshots created for the ECS are used to restore data. If the specifications fail to be modified, you can use the backups or snapshots to restore data.
New data disk If a data disk is created together with a server, EVS automatically attaches it to the server. You only need to initialize it to make it available for use. If a data disk is created explicitly, you need to first attach it to a server and then initialize it.
107374182400 bytes, 209715200 sectors Units = sectors of 1 × 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes This is a convenient method to obtain the device name, but you cannot obtain the mapping between the EVS
Non-0 indicates a data disk. device String Definition Specifies the drive letter of the EVS disk, which is the device name of the EVS disk. Range N/A size Integer Definition Specifies the disk size in GiB.
Example Request Attach a SCSI EVS disk to device /dev/sda.
subnet AZ: AZ1 CIDR block: 192.168.0.0/24 Free ECS Billing mode: Yearly/Monthly AZ: AZ1 Flavor: c7.large.2 Image: CentOS 7.6 64bit System disk: 40 GiB EIP: Auto assign EIP type: Dynamic BGP Billed by: Traffic Bandwidth: 5 Mbit/s The following resources generate costs: Cloud servers EVS
You can use a data disk image to create EVS disks and migrate your service data to the cloud. Full-ECS image Contains an OS, application software, and data for running services. A full-ECS image contains the system disk and all data disks attached to it.
Constraints If you use a full-ECS image to create an ECS, the EVS disks associated with the full-ECS image do not support the function of creating disks from a data disk image.
