Elastic Volume Service
Elastic Volume Service (EVS) is an elastic and scalable block storage device that can provide high-performance and highly reliable block storage services for ECS and elastic bare metal servers. EVS has a wide range of specifications to meet the business needs of different scenarios, and is suitable for file system, database, development and testing scenarios. Users may operate and manage EVS, and can format and create file systems on EVS attached to ECS just like using traditional server disk.