Product Advantages
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Highly Reliable
Distributed backend architecture, 3-copy redundancy, and 99.9999999% durability.
Distributed backend architecture, 3-copy redundancy, and 99.9999999% durability.
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Excellent Performance
Up to 128,000 IOPS and 1,000 MB/s of throughput for a single EVS disk.
Up to 128,000 IOPS and 1,000 MB/s of throughput for a single EVS disk.
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Elastic Scalability
Up to 32 TB for a single EVS disk, and online disk capacity expansion.
Up to 32 TB for a single EVS disk, and online disk capacity expansion.
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Security and Compliance
AES-256 encryption, secure and agile, with no application awareness.
AES-256 encryption, secure and agile, with no application awareness.
Why EVS?
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A Range of Disk Options
Choose from EVS disks with Extreme SSD, Ultra-high I/O, General Purpose SSD, or High I/O. Whatever your storage demands, there is always a great solution at a reasonable price.
Choose from EVS disks with Extreme SSD, Ultra-high I/O, General Purpose SSD, or High I/O. Whatever your storage demands, there is always a great solution at a reasonable price.
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Elastic Scalability
Increase block storage space, even if the disk is currently in use. In just a few clicks, you can scale a system disk up to 1 TB and a data disk up to 32 TB, all without any disruption to your workloads.
Increase block storage space, even if the disk is currently in use. In just a few clicks, you can scale a system disk up to 1 TB and a data disk up to 32 TB, all without any disruption to your workloads.
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Robust Security and Availability
Data on EVS disks is encrypted using industry-standard AES-256 encryption. Three copies of data are automatically created and stored on different nodes to ensure your data is always available.
Data on EVS disks is encrypted using industry-standard AES-256 encryption. Three copies of data are automatically created and stored on different nodes to ensure your data is always available.
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Extreme SSDExtreme SSD
Our highest performance disks, designed for latency-sensitive transactional workloads. An Extreme SSD disk can sustain up to 128,000 IOPS, a maximum throughput of 1,000 MB/s, and millisecond-level latency.
Our highest performance disks, designed for latency-sensitive transactional workloads. An Extreme SSD disk can sustain up to 128,000 IOPS, a maximum throughput of 1,000 MB/s, and millisecond-level latency.
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Ultra-high I/OUltra-high I/O
High performance disks excellent for I/O-intensive workloads. An Ultra-high I/O disk can sustain up to 50,000 IOPS, a maximum throughput of 350 MB/s, and minimum latency of 1 ms.
High performance disks excellent for I/O-intensive workloads. An Ultra-high I/O disk can sustain up to 50,000 IOPS, a maximum throughput of 350 MB/s, and minimum latency of 1 ms.
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General Purpose SSDGeneral Purpose SSD
Cost-effective SSDs ideal for mainstream interactive applications. A General Purpose SSD disk can sustain up to 20,000 IOPS, a maximum throughput of 250 MB/s, and minimum latency of 1 ms.
Cost-effective SSDs ideal for mainstream interactive applications. A General Purpose SSD disk can sustain up to 20,000 IOPS, a maximum throughput of 250 MB/s, and minimum latency of 1 ms.
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High I/OHigh I/O
Low-cost disks suitable for non-business-critical workloads as well as applications that require real-time data storage. A High I/O disk can sustain up to 5,000 IOPS, a maximum throughput of 150 MB/s, and minimum latency of 1 to 3 ms.
Low-cost disks suitable for non-business-critical workloads as well as applications that require real-time data storage. A High I/O disk can sustain up to 5,000 IOPS, a maximum throughput of 150 MB/s, and minimum latency of 1 to 3 ms.
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Online Capacity ExpansionOnline Capacity Expansion
Disk capacity can be expanded on the console or via API, without detaching the disk, allowing for linear performance scaling.
可根据需要通过控制台或者API，在线扩容，并且性能线性增长，以满足业务不断变化的需求
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3-Copy Redundancy3-Copy Redundancy
Three copies of the disk data are distributed and stored on storage nodes across cabinets, ensuring rapid data restoration and 99.9999999% data durability.
Three copies of the disk data are distributed and stored on storage nodes across cabinets, ensuring rapid data restoration and 99.9999999% data durability.
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Data EncryptionData Encryption
Encryption is supported for system and data disks with zero application awareness, freeing you from building and maintaining your own key management infrastructure.
Encryption is supported for system and data disks with zero application awareness, freeing you from building and maintaining your own key management infrastructure.
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Backup and Restore
Create backups for your EVS disks, so if data is ever lost or damaged, you can create new EVS disks or restore to the state as of the backup.
Create backups for your EVS disks, so if data is ever lost or damaged, you can create new EVS disks or restore to the state as of the backup.
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Real-Time Monitoring
Monitor disk performance using the free Cloud Eye service, which reports alarms and notifies you by email or SMS so you can handle the issues in a timely manner.
Monitor disk performance using the free Cloud Eye service, which reports alarms and notifies you by email or SMS so you can handle the issues in a timely manner.
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Data Sharing
Set up a shared file system or a cluster management system to allow concurrent access to one shared EVS disk from up to 16 cloud servers. Shared EVS disks are ideal for running clustered or high-availability applications.
Set up a shared file system or a cluster management system to allow concurrent access to one shared EVS disk from up to 16 cloud servers. Shared EVS disks are ideal for running clustered or high-availability applications.
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Auto BackupAuto Backup
Associate disks with a backup vault and apply a backup policy to the vault so disks are automatically backed up based on that policy.
Associate disks with a backup vault and apply a backup policy to the vault so disks are automatically backed up based on that policy.
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On-demand BackupOn-demand Backup
Manually back up disks at any specified point in time on the console or via API when needed.
Manually back up disks at any specified point in time on the console or via API when needed.
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RestorationRestoration
Restore your disk data to the desired backup time or batch create new data disks from a backup for rapid deployment.
Restore your disk data to the desired backup time or batch create new data disks from a backup for rapid deployment.
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Performance Data MonitoringPerformance Data Monitoring
View real-time disk performance metrics on Cloud Eye.
View real-time disk performance metrics on Cloud Eye.
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Alarm RulesAlarm Rules
Define alarm rules and set automatic reminders based on your business needs.
Define alarm rules and set automatic reminders based on your business needs.
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Data SharingData Sharing
Sharing allows an EVS disk to be concurrently attached to up to 16 cloud servers, making it easier to achieve high concurrency, performance, and reliability for clustered and mission-critical applications.
共享云硬盘是一种支持多个云服务器并发读写访问的数据块级存储设备，具备多挂载点、高并发性、高性能、高可靠性等特点，多个云服务器可同时访问一个云硬盘，主要应用于需要支持集群、HA能力的关键企业应用场景
Use Cases
NoSQL or Relational Databases
EVS disks with Extreme SSD or Ultra-high I/O are excellent for I/O-intensive, latency-sensitive databases like SQL Server, MySQL, and SAP HANA. They offer consistent low latency and can be flexibly scaled to address your performance requirements.
Advantages
Video Library
Buying an Elastic Volume Service Disk
Deleting Elastic Volume Service Disks (Data Disks)
Expanding an Available Elastic Volume Service Disk
Expanding an In-use Elastic Volume Service Disk