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Disk Capacity Expansion of an EVS Cluster Context As customer services evolve, disk space often becomes the initial bottleneck. In scenarios where other resources are ample, the conventional scale-out process is not only time-consuming but also resource-inefficient.
Figure 6 Attaching an EVS disk (before the BMS restart) Figure 7 Attaching an EVS disk (after the BMS restart) Figure 8 Detaching an EVS disk (before the BMS restart) Figure 9 Detaching an EVS disk (after the BMS restart) To identify EVS disks, log in to the BMS and run the lsscsi
Attaching an EVS Disk to a BMS (Deprecated) Function This API is used to attach an EVS disk to a BMS. This API has been deprecated. Use the API in Attaching an EVS Disk to a BMS. Constraints A bootable disk cannot be attached to a BMS.
When the Status is Available, the backup job of the associated EVS disks is complete. Disassociating EVS disks In the list of associated EVS disks, locate the EVS disk to be disassociated from the backup policy and click Disassociate in the Operation column.
Elastic Volume Service Disks 02:20 Delete a single EVS disk and delete EVS disks in a batch
Can I Attach an EVS Disk Purchased with a Yearly/Monthly Server to Another Yearly/Monthly Server? No. A yearly/monthly disk purchased together with a yearly/monthly server is in a binding relationship with the server. It cannot be attached to other servers.
After the modification, format the EVS disk.
When the Status is Available, the backup job of the associated EVS disks is complete. Disassociating EVS disks In the list of associated EVS disks, locate the EVS disk to be disassociated from the backup policy and click Disassociate in the Operation column.
Which ECSs Can Be Attached with SCSI EVS Disks?
Parent Topic: EVS Disks
What Should I Do If a Yearly/Monthly EVS Disk Cannot Be Automatically Created? Symptom When creating a yearly/monthly EVS disk, the payment permission cannot be added to cce_cluster_agency.
How Can I Migrate Data Between SFS Turbo and EVS? Mount an SFS Turbo file system and attach an EVS disk to the same ECS, and then manually replicate data between the file system and disk. Parent topic: SFS Turbo Migration
Creating and Mounting a File System Scenarios After the logical volume is created, you need to create a file system on the logical volume and mount the file system on the corresponding directory. This section shows how to create an ext4 file system on a logical volume and mount the
Step 2: Extend Disk Partitions and File Systems Extending Disk Partitions and File Systems (Linux) Extending Disk Partitions and File Systems (Windows) Parent Topic: Expanding the EVS Disk Capacity
During EVS disk backup, the data in the memory will not be automatically written onto the EVS disk, resulting in data inconsistency between the EVS disk and its backup.
Do I Need to Stop the Server Before Backing Up EVS Disks on a Server Using VBS? VBS can back up EVS disks that are is use. When a server is running, data is written into the EVS disks on the server, and some newly generated data is cached in the server memory.
If the volume group's available space is also insufficient, extend the volume group according to Extending the Logical Volume by Expanding Capacity of an EVS Disk or Extending the Volume Group by Adding an EVS Disk. Procedure Log in to the ECS as user root.
Solution Create a new EVS disk for future use. Parent Topic: Storage
Detaching an EVS Disk from a BMS (Deprecated) Function This API is used to detach an EVS disk from a BMS. This API has been deprecated. Use the API in Detaching an EVS Disk from a BMS.
For detailed operations, see sections about post-expansion operations on EVS disks in the Elastic Volume Service User Guide.
