Advantages

Advantages

  • 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.
  • Ultra-high I/O EVS Disk
    Ultra-high I/O EVS Disk
    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.
    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.
  • General Purpose SSD EVS Disk
    General Purpose SSD EVS Disk
    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.
    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.
  • High I/O EVS Disk
    High I/O EVS Disk
    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.
    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.
  • Online Capacity Expansion
    Online Capacity Expansion
    Disk 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.
  • Three Copies of Data
    Three Copies of Data
    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.
    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.
  • Data Encryption
    Data Encryption
    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.
    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.
  • 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.
  • Auto Backup
    Auto Backup
    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.
    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.
  • Manual Backup
    Manual Backup
    You 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.
  • Backup Restoration
    Backup Restoration
    You 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.
  • Performance Data Monitoring
    Performance Data Monitoring
    You can view real-time disk performance metrics on Cloud Eye.
    You can view real-time disk performance metrics on Cloud Eye.
  • Alarm Rules
    Alarm Rules
    You 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.
  • Data Sharing
    Data Sharing
    Shared 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

  • High-Performance Computing

  • NoSQL or Relational Databases

  • Clustered Applications

  • Enterprise Software Systems

  • Development & Test Environments

High-Performance Computing

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

Ultra-high Performance

Up to 50,000 IOPS and 350 MB/s throughput per disk

Ultra-low Latency
Down to 1 ms access latency
Multi-Terabyte Storage
Up to 32 TB per disk

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NoSQL or Relational Databases

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

Ultra-high Performance

Up to 50,000 IOPS and 350 MB/s throughput per disk 

Ultra-low Latency

Down to 1 ms access latency 

Multi-Terabyte Storage

Up to 32 TB per disk 

Related Services

Clustered Applications

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

High Performance

You can use shared EVS disks with Bare Metal Servers to provide highest possible read/write performance for your clustered applications.

Multiple Attachments

One shared EVS disk can be attached to a maximum of 16 cloud servers.

High Durability

Three copies of data are automatically created and saved to ensure 99.9999999% of data durability.

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Enterprise Software Systems

Enterprise Software Systems

EVS disks with general purpose SSD are ideal for enterprise software systems such as SAP, Microsoft Exchange, and Microsoft SharePoint.

Advantages

Highly Durable

Three copies of data are automatically created and saved to ensure 99.9999999% of data durability.

Seamlessly Scalable

EVS disks can be seamlessly scaled to address growing business requirements.

Multi-Terabyte Storage
Up to 32 TB per disk

Related Services

Development & Test Environments

Development & Test Environments

EVS disks with general purpose SSD or high I/O are ideal for development and test environments.

Advantages

High Reliability

Three copies of data are automatically created and saved to ensure 99.9999999% of data durability.

Seamlessly Scalable

EVS disks can be seamlessly scaled to address growing business requirements.

Multi-Terabyte Storage
Up to 32 TB per disk

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Recommended Configurations

Ultra-high I/O EVS Disk

Superior performance, ultra-low latency, high reliability

High-performance computing | Data warehouses | NoSQL | Relational databases

  • Max. IOPS/disk

    50,000

  • Max. throughput/disk

    350 MB/s

  • Read/write latency

    1 ms

  • Max. capacity/disk

    32 TB

  • Data durability

    99.9999999%

Starting from $0.154 USD /GB-month

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General 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

  • Max. IOPS/disk

    20,000

  • Max. throughput/disk

    250 MB/s

  • Read/write latency

    1 ms

  • Max. capacity/disk

    32 TB

  • Data durability

    99.9999999%

Starting from $0.094 USD /GB-month

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High I/O EVS Disk

High reliability, cost-effectiveness

Small/medium-scale dev & testing | Web server logs | Office applications

  • Max. IOPS/disk

    5,000

  • Max. throughput/disk

    150 MB/s

  • Read/write latency

    1 ms to 3 ms

  • Max. capacity/disk

    32 TB

  • Data durability

    99.9999999%

Starting from $0.054 USD /GB-month

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Usage Guides

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

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