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General product information Network drives

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network volume is a scalable external network block storage with triple data replication. Triple replication of disk volumes provides high data integrity. Suitable for rapid scaling of server disk space.

network volumes can be connected to dedicated servers in pools:

  • MSK-1 - over the SAN network and through the private network;
  • MSK-2 is via private network only.

Dedicated servers are available to connect to network volumes:

  • arbitrary and off-the-shelf configuration with a port for the local network. You can view information about server ports in the control panel: in the top menu, click ProductsDedicated ServersServers → Server → Server page → Ports tab;
  • ready configuration with the tag You can connect network volumes;
  • arbitrary configuration with optional 2 × 10 GE NIC + 10 Gbps network volume SAN connection.

Principle of operation

The network drive can be connected to one or more dedicated servers. The connection is made using the iSCSI protocol.

All servers and network volumes are combined into a single group when they are connected in the Control Panel - see the Connect a network volume to a server subsection of the Connect a network volume to a server instructions for details. A network volume can only be connected to the entire group at once - it will be available to all servers in the group.

Example of links between network volumes and dedicated servers in a group

Example of combining dedicated servers and network volumes into a single group

Types of network volumes

Selectel provides two types of network volumes:

  • Basic HDD - HDD disk based on enterprise-class SATA disks. Suitable for storing large amounts of data that do not need to be read or rewritten frequently;
  • Fast SSD - NVMe SSD disk with fast response and high speed operation. Suitable for operations that require high read and write speeds.

Disk types are distinguished by minimum and maximum capacity limits, throughput values, and number of read and write operations. See the network volume Limits table for details.

network volume limits

Basic HDDFast SSD
Minimum volume100 GB.100 GB.
Maximum volume5 TB.1 TB
Throughput100 MB/s.500 MB/s
Number of read operations320 IOPS25000 IOPS
Number of operations per record120 IOPS15000 IOPS