Description of the SIM-Cloud service


“SIM-Cloud” IaaS is the flagship product of SIM-Networks/Netversor, built on the basis of a software package that implements the functions of the OpenStack cloud platform, which allows you to manage pools of various resources like IaaS.

It is currently the world’s most popular consortium-driven software stack for infrastructure-as-a-service solutions. The OpenStack project is actively developing with the support of a large community, among which are counted the giants of the IT industry: Intel, IBM, AT&T, Canonical, HP, Nebula, Rackspace, Red Hat, SUSE, Ericsson and Huawei.

Key features


  • IPv4 and IPv6 support
  • Ability to create public and local networks
  • Ability to create public and private subnets
  • Creating vRouter virtual routers
  • DHCP service
  • NAT service
  • Firewalls
  • Security groups
  • VPN
  • BGP
  • Port security
  • DNS
  • QoS
  • Floating IP
  • Static routing


  • Several storage types
  • Ability to create snapshots
  • Attaching multiple volumes to one instance
  • Data migration between different types of storage
  • Disk expansion support
  • Data encryption at the storage level
  • Data Protected storage
  • Customer images

Processing resources

  • Creating virtual machines (instances) from an image
  • Creating virtual machines (instances) from a disk
  • Linux/Windows OS support
  • Web-console
  • SSH-key provision
  • Cloud-init automatization
  • Ability to connect virtual devices. On-line attach/detach volumes and network interfaces.
  • Changing the instance type. Instance resize.
  • Metadata support.
  • Ready-to-use images


  • Web Dashboard
  • CLI Tools
  • API

Main characteristics

Processing power

  • KVM Hypervisor;
  • Intel Xeon E5 processor;
  • 32 standard configurations: from 1vCPU/1vRAM to 32vCPU/192GB RAM.


  • Cloud network. VXLAN Ethernet 10-40 Gbit/sec;
  • SAN. Fat Tree Infiniband-56 Gbit network;
  • External network 1-10 Gbit/sec

Storage system

The data storage system (DSS) in the SIM-Cloud is built from software-defined storage (SDS). The best solution for SIMCloud tasks is a Ceph-based solution.

Software-defined storage (SDS) data storage uses two types of disks:


  • Bandwidth – 200МB/sec;
  • IOPS – 750/sec.


  • Bandwidth – 300МB/sec;
  • IOPS – 10 000/sec.

SIM-Cloud structure

The cloud as a whole is formed by hardware, software and engineering components. At the resource level in the SIM-Cloud, N+1 reservation is implemented.

The cloud architecture was designed taking into account the requirements of a high level of reliability, performance and ease of scalability. All hardware infrastructure elements are duplicated. Each server rack is a versatile element of a scalable system. Failure of an entire server rack is not a critical event affecting the operation of the system. All data stored in the cloud remains safe and sound, and customer services remain as available as possible.