Cloud & Networking
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You're reading from  Mastering Proxmox, - Third Edition

Product typeBook
Published inNov 2017
PublisherPackt
ISBN-139781788397605
Edition3rd Edition
Tools
CephProxmox
Concepts
Cloud Computing
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Author (1)
Wasim Ahmed
Wasim Ahmed
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Wasim Ahmed

Wasim Ahmed, born in Bangladesh and now a citizen of Canada, is a veteran of the IT world. He first came into close contact with computers in 1992 and never looked back. Wasim has a deep understanding of networks, virtualization, big data storage, and network security. By profession, Wasim is the CEO of a global IT support and cloud service provider based in Calgary, Alberta. He serves many companies and organizations through his company on a daily basis. Wasim's strength comes from his experience, which comes from learning and serving continually. Wasim strives to find the most effective solution at the most competitive price. He has built over 20 enterprise production virtual infrastructures using Proxmox and the Ceph storage system. Wasim and his team are notorious for not simply accepting a technology based on its description alone, but putting it through rigorous testing to check its validity. Any new technology that his company provides goes through months of continuous testing before it is accepted. Proxmox made the cut superbly.
Read more about Wasim Ahmed

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Requirements for HA setup

In Proxmox 4.0, the HA feature has been completely redesigned from the ground up, making it much simpler to configure and use. There are a few requirements that the virtual environment must meet before configuring Proxmox HA. They are as follows:

  • At least three nodes
  • Shared storage
  • Fencing

At least three nodes

HA must be configured in a cluster with a minimum of three nodes because with three nodes or more, achieving a quorum is possible. Quorum is the minimum number of votes required for Proxmox cluster operation. This minimum number is the total vote by a majority of the nodes. For example, in a cluster of three Proxmox nodes, a minimum vote of two Proxmox nodes is required to form a quorum. In a cluster with eight nodes, a minimum vote of five Proxmox nodes is required to form a quorum. With just two nodes, the ratio of votes will always be 1:1, so no quorum is possible.

Shared storage

During a node failure, VM configuration files are moved to the next member node in...

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Mastering Proxmox, - Third Edition
Published in: Nov 2017Publisher: PacktISBN-13: 9781788397605
© 2017 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Wasim Ahmed

Wasim Ahmed, born in Bangladesh and now a citizen of Canada, is a veteran of the IT world. He first came into close contact with computers in 1992 and never looked back. Wasim has a deep understanding of networks, virtualization, big data storage, and network security. By profession, Wasim is the CEO of a global IT support and cloud service provider based in Calgary, Alberta. He serves many companies and organizations through his company on a daily basis. Wasim's strength comes from his experience, which comes from learning and serving continually. Wasim strives to find the most effective solution at the most competitive price. He has built over 20 enterprise production virtual infrastructures using Proxmox and the Ceph storage system. Wasim and his team are notorious for not simply accepting a technology based on its description alone, but putting it through rigorous testing to check its validity. Any new technology that his company provides goes through months of continuous testing before it is accepted. Proxmox made the cut superbly.
Read more about Wasim Ahmed

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