Skip to main content

Data Storage System Product Description

A data storage system (DSS) is a fault-tolerant complex of hardware and software designed to store and manage large amounts of data at high data transfer rates. Data transfer rate is measured in IOPS, which is the number of read and write operations per second.

Depending on the volume of your data, the tasks being solved, and privacy requirements, you can store it:

Storage can be connected to one or more dedicated servers:

  • DSS LUNs can only be connected to dedicated servers of custom configuration with a 2 × 10 GE NIC + 10 Gbps DSS LUN SAN connection. The server must be in the same pool as the DSS LUN;

  • a dedicated storage system can be connected to dedicated servers with a 2 × 10 GE network card + 10 Gbps LUN storage SAN connection.

Use Cases

LUN storage is used for deploying your own virtualization system, working with hot backups, databases, and media files.

Dedicated storage is used to handle large amounts of data.

Tape storage is used for compliance with long-term data retention requirements and for storing data offline.

LUN storage

LUN storage is a pre-configured part of a dedicated storage system, isolated at the software level. Logical units of a single storage system can be allocated to different clients, while shared network interfaces are used for connection.

We allocate a LUN on the Huawei OceanStor Dorado 5000 V6 all-flash storage system. Its performance metrics are 8,000/8,000 IOPS per TB of data.

The performance of each LUN depends on its volume. The larger it is, the higher the performance. Change LUN volume at any time.

Dedicated storage

Dedicated DSS is a hardware-isolated DSS without pre-configuration. Dedicated network interfaces are used to connect to it.

The storage system parameters and manufacturer are selected individually.

Tape storage

Tape DSS is an autonomous storage system that uses magnetic tape cartridges to write data. Data is written to LTO-9 tape cartridges of 18 TB each. Upon request, cartridges can be moved to an individual storage cell.

You can rent either an individual cartridge or an entire dedicated tape library. If you rent only cartridges, the tape library administration service remains with Selectel. To write data to a cartridge, you will need a repository to store backups — for example, cloud storage, a virtual machine, or an FTP server. Data is written to a cartridge according to a pre-agreed scenario, for example, daily, every two days, or once a week.

We use tape DSS from HPE, DELL, and IBM. Tape DSS parameters are selected individually.

Areas of responsibility

Selectel ensures the uptime and availability of the storage system.

For LUN storage, we are responsible for administration and pre-configuration. Learn more in the document Terms of Use for Managed Services: LUN Storage.

Selectel is not responsible for the setup and administration of dedicated storage systems. If you need help with the administration and setup of dedicated storage, order managed services.