---
title: "Public Cloud VMware-based product description"
sidebar_label: "Description"
sidebar_position: 1
toc_max_heading_level: 2
description: "How the Public Cloud powered by VMware works: tasks solved, technologies, clusters"
---

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# Public Cloud powered by VMware product description

Public Cloud powered by VMware is a cloud infrastructure based on the VMware vSphere® and VMware Cloud Director® (formerly vCloud Director®) platforms, which is provided on Selectel's physical infrastructure (IaaS).

In a public cloud, you share physical server resources with other clients. To set up infrastructure isolated from other clients, use a [VMware-based private cloud](https://selectel.ru/services/cloud/vmware/private-cloud/).

To work with a public cloud, you need to [create an organization](/public-cloud/manage-public-cloud/create-organization/) in one of the [regions](/infrastructure/locations.mdx#region) — Moscow or St. Petersburg. Within an organization, you create a virtual data center in one of the [clusters](#clusters) in a specific availability zone of the chosen region. For the GOLD-1 cluster, a [multizonal solution](#multizonal-gold-1-cluster) is available — deployment across two availability zones within a region.

Once a virtual data center is created, its resources are managed through the Cloud Director panel.

By default, [basic Selectel DDoS protection](/anti-ddos/ddos-selectel.mdx) is enabled for the Public Cloud.

If you need help administering your public cloud, order the [Managed Services](/managed-services/about-managed-services/).

## Tasks solved \{#tasks-to-be-solved}

* expanding cloud capacity hosted in On-Premises infrastructure without additional hardware costs;
* moving public applications to a separate cloud;
* creating disaster-resilient infrastructure by using a public cloud as a backup;
* launching a test environment in minutes.

## Technologies \{#technologies}

* VMware vSphere® — application virtualization;
* VMware vSAN™ — virtual disk and directory storage;
* VMware Cloud Director® — Virtual Data Center Control Panel.

## Clusters \{#clusters}

<CustomTable>
  <table data-sticky>
    <thead>
      <tr>
        <th />

        <th>Processor</th><th>Description</th>
      </tr>
    </thead>

    <tbody>
      <tr>
        <th>Silver-1</th><td>Intel® Xeon® Gold 6240 @ 2.60 GHz</td>

        <td>
          All-Flash vSAN-based cluster:

          * vHDD (up to 300 IOPS);
          * Fast vHDD (up to 2500 IOPS)
        </td>
      </tr>

      <tr>
        <th>Gold-1</th><td>Intel® Xeon® Gold 6240 @ 2.60 GHz</td>

        <td>
          All-Flash vSAN-based cluster:

          * vSSD (5000 IOPS);
          * Fast vSSD (25000 IOPS)
        </td>
      </tr>

      <tr>
        <th>Gold-1 (multi-zone)</th><td>Intel® Xeon® Gold 6240 @ 2.60 GHz</td>

        <td>
          All-Flash vSAN-based cluster:

          * vSSD (5000 IOPS);
          * Fast vSSD (25000 IOPS)
        </td>
      </tr>

      <tr>
        <th>Platinum-1</th><td>Intel® Xeon® Gold 6254 @ 3.10 GHz</td>

        <td>
          All-Flash vSAN-based cluster:

          * vSSD (5000 IOPS);
          * Fast vSSD (25000 IOPS);
          * Ultra vSSD (40000 IOPS)
        </td>
      </tr>

      <tr>
        <th>AMD HiFreq-1</th><td>AMD EPYC™ 9275F @ 4.10 GHz</td>

        <td>
          All-Flash vSAN-based cluster:

          * vSSD Pro (10000 IOPS);
          * Fast vSSD (25000 IOPS);
          * Ultra vSSD (40000 IOPS);
          * Extreme vSSD (80000 IOPS)
        </td>
      </tr>
    </tbody>
  </table>
</CustomTable>

The write speeds for the disks are listed cumulatively for all operations in 32 KB blocks.

All clusters use:

* high-performance NVMe SSDs;
* Juniper Networks and Brocade networking equipment;
* virtualization hosts on hardware platforms certified for VMware HCL.

The bandwidth of the virtual data center channel is 1 Gbps.

## Gold-1 multi-zone cluster \{#multizonal-gold-1-cluster}

When choosing a multizonal solution, along with creating a virtual data center, a virtual machine cluster is reserved in an additional data center (VMware Stretched vSAN technology). The virtual data center is regularly replicated to the backup cluster — the availability of the primary and replicated data center is constantly monitored.

If the virtual data center becomes unavailable, all virtual machines will be automatically started on the backup data center with minimal downtime.

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