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In the list, select Elastic Volume Service (EVS) for Service Type. In the Resource Tag column, find the _sys_recycle_bin_volume:true tag, which identifies the EVS recycle bin bill.
Common Application Scenarios and Usage Instructions of SCSI EVS Disks BMSs support only SCSI EVS disks. Shared SCSI EVS disks: Shared SCSI EVS disks must be used together with a distributed file system or cluster software.
If this still fails to meet your needs, it is recommended that you create RAID arrays with EVS disks or manage EVS disks using LVM. Parent topic: Capacity
Procedure Sign in to the EVS console. Choose Storage > Elastic Volume Service. The Elastic Volume Service page is displayed.
An EVS disk can be expanded either in the Available or In-use state. Expanding the disk capacity on the console enlarges the disk capacity, but you still need to log in to the server and extend the disk partitions and file systems to make that additional space usable.
For example, if an IAM user wants to query EVS disks using an API, the user must have been granted permissions that allow the evs:volumes:list action. Supported Actions EVS provides system-defined policies that can be directly used in IAM.
When you create a BMS, you can select one from the following storage types: Elastic Volume Service (EVS): provides EVS disks of different QoS configurations to meet performance requirements in various scenarios.
For more information, see Purchasing and Using an EVS Disk. Parent topic: General
Differences Between Expanding an EVS Disk and Creating an 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.
Handling Insufficient Disk Space on a Windows ECS Scenarios When the EVS disk space on a server is insufficient, the server running speed will be affected, which will further affect user experience.
The first snapshot is a full snapshot, which backs up all data (data blocks) on the EVS disk at the time of the snapshot. Subsequent snapshots are incremental snapshots, which back up only changed data blocks since the last snapshot. Parent topic: 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: Billing
API Calling EVS supports Representational State Transfer (REST) APIs, allowing you to call APIs using HTTPS. For details about API calling, see Calling APIs. Parent Topic: Before You Start
For more information about shared disks, see Managing Shared EVS Disks. Shared disks are a type of EVS disks that can be attached to multiple servers. A shared file system or cluster management system must be set up before you can properly use a shared disk.
Scenarios When the EVS disk space on a server is insufficient, the server running speed will be affected, which will further affect user experience.
Use a backup to create an EVS disk and associate the EVS disk with a server. For details, see Attaching a Non-Shared Disk or Attaching a Shared Disk. Then copy data in the data disk to the system disk. Parent topic: Restoration
Device Type of the EVS disk must be SCSI. A non-shared EVS disk must be in Available state. A shared EVS disk must be in In-use or Available state. BMSs using some flavors or images cannot have EVS disks attached because the servers do not have SDI iNICs or for other reasons.
Symptom For a Linux ECS, the drive letter may change after an EVS disk is detached and then attached again, or after an EVS disk is detached and then the ECS is restarted.
Disk Backup Cloud Backup and Recovery (CBR) provides the cloud disk backup function, which allows you to back up EVS disks while servers are running.
Scenarios Shared EVS disks of the SCSI type support SCSI locks. To improve data security, the shared EVS disks of the SCSI type must be attached to the ECSs in the same anti-affinity ECS group.
