Elastic Volume Service (EVS) provides persistent block storage for Elastic Cloud Servers (ECS). With advanced data redundancy and cache acceleration capabilities, EVS offers high availability and durability with an extremely low latency.
Common, high, and ultra-high I/O disks are available so you are free to optimize your storage for capacity, latency, or speed.
With distributed technologies, data is saved in three copies on storage nodes across cabinets, ensuring rapid data restoration and 99.9999999% data durability, and avoiding data losses caused by hardware failures
Disks support online capacity expansion. One disk can be expanded to up to 32 TB in 1 GB increments, supporting up to 33,000 IOPS and throughput of 350 MB/s