Functions
Functions
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Rich Specifications
Common, high, and ultra-high I/O disks are available so you are free to optimize your storage for capacity, latency, or speed.Three disk types, common I/O, high I/O, and ultra-high I/O -
Elastic Scalability
Disks support online capacity expansion, but one disk can be expanded to up to 32 TB in 1 GB increments.Up to 32 TB per disk and capacity expansion in 1 GB increments -
Security and Reliability
Triplicate storage ensures reliability while encryption keeps your data safe.Distributed storage and encryption ensure data security.
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Ultra-high I/O EVS DisksUltra-high I/O EVS DisksSuitable for read/write intensive scenarios that require extremely high performance and read/write speed, and low latency. An ultra-high I/O disk can sustain up to 33,000 IOPS, and have a maximum throughput of 350 MB/s and minimum latency of 1 ms.Suitable for read/write intensive scenarios demanding extremely high performance and read/write speed, and low latency.
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High I/O EVS DisksHigh I/O EVS DisksSuitable for scenarios that require high performance, high read/write speed, and real-time data storage. A high I/O disk can sustain up to 5,000 IOPS, and have a maximum throughput of 150 MB/s and minimum latency of 1 to 3 ms.Suitable for scenarios demanding high performance, high read/write speed, and real-time data storage.
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Common I/O EVS DisksCommon I/O EVS DisksSuitable for scenarios that feature few transactions and require large capacity and normal read/write speed. A common I/O disk can sustain up to 2,200 IOPS, and have a maximum throughput of 90 MB/s and minimum latency of 5 to 10 ms.Suitable for scenarios that feature few transactions and require large capacity and normal read/write speed.
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Online Capacity ExpansionOnline Capacity ExpansionDisk capacities can be expanded on the console or via API without detaching disks, and linear performance scaling can be achieved.Online capacity expansion without detaching disks and linear performance scaling
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Three Copies of DataThree Copies of DataWith 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.Distributed storage with three data replicas ensures 99.9999999% availability.
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Data EncryptionData EncryptionData encryption is supported for both system disks and data disks with zero application awareness, and the encryption function frees you from building and maintaining your own key management infrastructure.System and data disks support data encryption with zero application awareness.
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Backup and Restoration
Data on your disks can be backed up automatically based on the pre-defined backup policy or manually.Pre-defined backup policy or manual backup -
Real-Time Monitoring
EVS supports real-time monitoring of the disk health and running status through Cloud Eye.Real-time disk monitoring through Cloud Eye -
Data Sharing
Shared disks support concurrent read/write from multiple servers.Concurrent read/write from multiple servers
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Automatic BackupAutomatic BackupYou can associate your disks with pre-defined backup policies to automatically back up the disk data without detaching them.Automatic backup with pre-defined backup policies
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Manual BackupManual BackupYou can manually back up the disk data at specified points of time on the console or via API when needed.Manual backup on the console or via API as required
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Backup RestorationBackup RestorationYou can restore your disk data to the desired backup time or batch create new data disks from backups to implement rapid deployment.Data restoration to desired backup time and batch creation of new disks from backups
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Performance Data MonitoringPerformance Data MonitoringThe read/write speeds and throughputs of EVS disks can be monitored in real time.Real-time disk read/write speed and throughput monitoring
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Alarm RulesAlarm RulesEVS supports user-defined alarm rules and automatic reminders.User-defined alarm rules and automatic reminders
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Data SharingData SharingShared disks are block storage devices that support concurrent reads/writes and feature multiple attachments, high concurrency, high performance, and high reliability. Multiple servers can access one shared disk simultaneously.A shared disk can be attached to multiple servers for use.
Application Scenarios
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High-Performance Computing
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NoSQL/Relational Databases
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Enterprise Cluster & Core Applications
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Enterprise Application Systems
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Development & Test Environments
High-Performance Computing
Great for distributed file systems like Lustre, which require high-performance storage. Ultra-high I/O EVS disks meet extremely high throughput and read/write speed requirements.
Advantages
NoSQL/Relational Databases/Data Warehouses
Great for read/write intensive applications, various databases, and data warehouses, like SQL Server, MySQL, and SAP HANA. Ultra-high I/O EVS disks meet low latency and extremely high read/write speed requirements.
Advantages
Up to 33,000 IOPS and 350 MB/s throughput per disk
Down to 1 ms access latency
Up to 32 TB per disk
Enterprise Cluster & Core Applications
Great for enterprise cluster and core applications, like Microsoft Windows Server Failover Clustering (WSFC) and Oracle RAC. Shared EVS disks meet the cluster application deployment requirements.
Advantages
BMS and shared EVS disks provide high performance for cluster applications.
One shared EVS disk can be attached to a maximum of 16 servers, supporting complex cluster applications.
Three copies of data ensures 99.9999999% data durability, safeguarding customer data.
Enterprise Application Systems
Great for key enterprise application systems such as SAP, Microsoft Exchange, and Microsoft SharePoint. High I/O EVS disks meet diverse enterprise office requirements.
Advantages
Development & Test Environments
Great for development and test environments. Common I/O EVS disks meet development and test environment requirements.
Advantages
Recommended Configurations
Ultra-high I/O EVS Disk
Superior performance, ultra-low latency, high reliability
High-performance computing | Data warehouses | NoSQL | Relational databases
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Max. IOPS/disk
33,000
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Max. throughput/disk
350 MB/s
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Read/write latency
1 ms
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Max. capacity/disk
32 TB
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Data durability
99.9999999%
Starting from $0.154 USD /GB-month
Buy NowHigh I/O EVS Disk
High reliability, cost-effectiveness
Enterprise applications | Large- and medium-scale dev & test environments | Web server logs
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Max. IOPS/disk
5,000
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Max. throughput/disk
150 MB/s
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Read/write latency
1 ms to 3 ms
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Max. capacity/disk
32 TB
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Data durability
99.9999999%
Starting from $0.054 USD /GB-month
Buy NowCommon I/O EVS Disk
High reliability, moderate performance and cost
Office applications | Small-scale dev & test environments
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Max. IOPS/disk
2,200
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Max. throughput/disk
90 MB/s
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Read/write latency
5 ms to 10 ms
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Max. capacity/disk
32 TB
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Data durability
99.9999999%
Starting from $0.046 USD /GB-month
Buy NowVideo 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