Huawei Cloud Elastic Volume Service Description
Elastic Volume Service (EVS), which provides block storage for cloud servers such Elastic Cloud Servers, (ECS), and Bare Metal Serverss (BMS), is highly durable. EVS provides 99.9999999% durability with as little as 1 millisecond read/write latency to support a wide range of mission-critical applications. EVS disks are available with high I/O or general purpose SSD. There is an EVS disk that can meet all your storage needs. You can instantly increase the block storage space of an EVS disk if it is not sufficient. You can easily scale a system disk to 1 TB or a data disk to 32 TB in a matter of seconds, without affecting your workloads. EVS disks are encrypted using the industry-standard AES256 encryption algorithm and keys.