Glossary

Bash

bourne shell command variation, one of the UNIX shell variants.

CIDR (Classless Inter-Domain Routing)

method of IP addressing that allows to flexibly manage IP address space without using a rigid framework of class address.

Deduplication

compression method in which duplicated data is removed from the DSS.

DC (datacenter)

area for hosting company servers; ensures uninterrupted, fast and efficient processing of large amounts of data.

DSS (data storage system)

software and hardware solution for storing and accessing data (it can be a part or a basis of DC).

ESXi

independent hypervisor that performs physical software emulation.

Failover

restoring of a customer system to a backup component of a computer system or network in case of failure or malfunction.

Hyper-V

server virtualization technology that allows multiple virtual OS to run on a single physical server.

Migration

spinning up of a customer system on a target platform (AWS or KVM platform).

msi-installator

subsystem of Microsoft Windows that provides installation of programs.

OpenStack

software for creating cloud services and storage.

Replication

synchronization of contents of multiple copies of a machine.

vCPU

virtual central processing unit.

VMware

virtualization software that allows user to install one or more virtual machines on a single physical computer and run these machines in parallel with it.

VMware Tools

set of utilities that improves interaction between a virtual machine and a cloud platform, increases performance of an operating system within a virtual machine and also improves management functions of a VM.

VMware quiesce

“freeze” mechanism used to create a backup to ensure integrity of a virtual machine (pausing processes inside of a virtual machine to flush data stored in cache or in RAM, which allows to create a disk with a fully consistent filesystem).

vSphere

set of VMware products designed for DC virtualization.