Product Description Network Volumes for Dedicated Servers
A network volume for dedicated servers is a scalable external network block storage with triple data replication. Triple replication of disk volumes ensures high data integrity. Suitable for rapid scaling of server disk space.
Network volumes can be connected to dedicated servers in pools in St. Petersburg and Moscow. The selected pool determines:
- network for connecting a network volume — SAN or private network;
- and server configurations to which network volumes can be connected.
St. Petersburg
Moscow
How it works
A network volume can be connected to one or more dedicated servers. Connection is performed via 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 network volume to server section of the Connect network volume to server instructions for more 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 based on enterprise-class SATA drives. Suitable for storing large amounts of data that do not require frequent reading or overwriting;
- Fast SSD – NVMe SSD with fast response time and high performance. Suitable for operations that require high read and write speeds.
Disk types differ in minimum and maximum size, throughput, and the number of read and write operations. See details in the Network volume limits table.
Limits and restrictions
Only one SAN network is available in each region.
By default, you can create only three network volumes per account. The number of network volumes and the maximum disk size can be increased; to do this, create a ticket.