Advantages
Advantages
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Cost-Effective Storage
You can choose from EVS disks with high I/O, general purpose SSD, or ultra-high I/O. Whatever your storage demands, there is always a great solution at a reasonable price, and with EVS disks you can always add space without disrupting services.You can choose from EVS disks with high I/O, general purpose SSD, or ultra-high I/O. Whatever your storage demands, there is always a great solution at a reasonable price, and with EVS disks you can always add space without disrupting services. -
Elastic Scalability
If the capacity of an EVS disk is insufficient, you can immediately 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.If the capacity of an EVS disk is insufficient, you can immediately 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. -
Unmatched Security and Availability
Data on EVS disks is encrypted using the industry-standard AES-256 encryption algorithm and keys. Three copies of data are automatically created and stored on different nodes to ensure your data is always available whenever you need it.Data on EVS disks is encrypted using the industry-standard AES-256 encryption algorithm and keys. Three copies of data are automatically created and stored on different nodes to ensure your data is always available whenever you need it.
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Ultra-high I/O EVS DiskUltra-high I/O EVS DiskExcellent for mission-critical workloads that demand high throughput and low latency. An ultra-high I/O disk can sustain up to 50,000 IOPS, and have a maximum throughput of 350 MB/s and minimum latency of 1 ms.Excellent for mission-critical workloads that demand high throughput and low latency. An ultra-high I/O disk can sustain up to 50,000 IOPS, and have a maximum throughput of 350 MB/s and minimum latency of 1 ms.
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General Purpose SSD EVS DiskGeneral Purpose SSD EVS DiskIdeal for mainstream interactive applications. A general purpose SSD disk can sustain up to 20,000 IOPS, and have a maximum throughput of 250 MB/s and minimum latency of 1 ms.Ideal for mainstream interactive applications. A general purpose SSD disk can sustain up to 20,000 IOPS, and have a maximum throughput of 250 MB/s and minimum latency of 1 ms.
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High I/O EVS DiskHigh I/O EVS DiskSuitable for active workloads as well as applications that require 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 active workloads as well as applications that require 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.
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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.Disk capacities can be expanded on the console or via API without detaching disks, and linear performance scaling can be achieved.
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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.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.
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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.Data 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.
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Backup and Restore
You can create backups or snapshots for your EVS disks. If data is ever lost or damaged, you can use the backups or snapshots to create new EVS disks or restore the data to its original state.You can create backups or snapshots for your EVS disks. If data is ever lost or damaged, you can use the backups or snapshots to create new EVS disks or restore the data to its original state. -
Real-Time Monitoring
After EVS is enabled, you can monitor disk performance on Cloud Eye. In the event of any unexpected issues, Cloud Eye reports alarms and notifies you by email or SMS so you can handle the issues in a timely manner.After EVS is enabled, you can monitor disk performance on Cloud Eye. In the event of any unexpected issues, Cloud Eye reports alarms and notifies you by email or SMS so you can handle the issues in a timely manner. -
Data Sharing
You can 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.You can 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 BackupYou can associate disks with a backup vault and apply a backup policy to the vault so that disks can be automatically backed up based on that policy.You can associate disks with a backup vault and apply a backup policy to the vault so that disks can be automatically backed up based on that policy.
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Manual BackupManual BackupYou can manually back up the disk at any specified point in time on the console or via API when needed.You can manually back up the disk at any specified point in time on the console or via API when needed.
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Backup RestorationBackup RestorationYou can restore your disk data to the desired backup time or batch create new data disks from a backup to implement rapid deployment.You can restore your disk data to the desired backup time or batch create new data disks from a backup to implement rapid deployment.
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Performance Data MonitoringPerformance Data MonitoringYou can view real-time disk performance metrics on Cloud Eye.You can view real-time disk performance metrics on Cloud Eye.
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Alarm RulesAlarm RulesYou can define alarm rules and set automatic reminders that suit your business needs.You can define alarm rules and set automatic reminders that suit your business needs.
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Data SharingData SharingShared EVS disks are block storage devices that support concurrent reads/writes and feature multiple attachments, high concurrency, high performance, and high reliability.Shared EVS disks are block storage devices that support concurrent reads/writes and feature multiple attachments, high concurrency, high performance, and high reliability.
Application Scenarios
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High-Performance Computing
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NoSQL or Relational Databases
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Clustered Applications
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Enterprise Software Systems
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Development & Test Environments
High-Performance Computing
EVS disks with ultra-high I/O are ideal for distributed file systems like Lustre. Such disks offer the read/write performance powerful enough to meet even the most demanding throughput requirements.
Advantages
Up to 50,000 IOPS and 350 MB/s throughput per disk
NoSQL or Relational Databases
EVS disks with ultra-high I/O are ideal for read/write-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
Up to 50,000 IOPS and 350 MB/s throughput per disk
Down to 1 ms access latency
Up to 32 TB per disk
Clustered Applications
Shared EVS disks are ideal for working with clustered mission- or business-critical applications, like Microsoft Windows Server Failover Clustering (WSFC) and Oracle RAC.
Advantages
You can use shared EVS disks with Bare Metal Servers to provide highest possible read/write performance for your clustered applications.
One shared EVS disk can be attached to a maximum of 16 cloud servers.
Three copies of data are automatically created and saved to ensure 99.9999999% of data durability.
Enterprise Software Systems
EVS disks with general purpose SSD are ideal for enterprise software systems such as SAP, Microsoft Exchange, and Microsoft SharePoint.
Advantages
Three copies of data are automatically created and saved to ensure 99.9999999% of data durability.
EVS disks can be seamlessly scaled to address growing business requirements.
Development & Test Environments
EVS disks with general purpose SSD or high I/O are ideal for development and test environments.
Advantages
Three copies of data are automatically created and saved to ensure 99.9999999% of data durability.
EVS disks can be seamlessly scaled to address growing business requirements.
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
50,000
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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 NowGeneral Purpose SSD EVS Disk
Highly available, cost-effective SSD storage
Enterprise systems | Large/medium-scale dev & testing | I/O-intensive applications | Small/medium-scale databases | System disks
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Max. IOPS/disk
20,000
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Max. throughput/disk
250 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 $0.094 USD /GB-month
Buy NowHigh I/O EVS Disk
High reliability, cost-effectiveness
Small/medium-scale dev & testing | Web server logs | Office applications
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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 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
Documentation
Documentation
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