Book Image

VMware vSphere 6.5 Cookbook - Third Edition

By : Abhilash G B, Cedric Rajendran
Book Image

VMware vSphere 6.5 Cookbook - Third Edition

By: Abhilash G B, Cedric Rajendran

Overview of this book

VMware vSphere is a complete and robust virtualization product suite that helps transform data centers into simplified on-premises cloud infrastructures, providing for the automation and orchestration of workload deployment and life cycle management of the infrastructure. This book focuses on the latest release of VMware vSphere and follows a recipe-based approach, giving you hands-on instructions required to deploy and manage a vSphere environment. The book starts with the procedures involved in upgrading your existing vSphere infrastructure to vSphere 6.5, followed by deploying a new vSphere 6.5 environment. Then the book delves further into the procedures involved in managing storage and network access to the ESXi hosts and the virtual machines running on them. Moving on, the book covers high availability and fair distribution/utilization of clustered compute and storage resources. Finally, the book covers patching and upgrading the vSphere infrastructure using VUM, certificate management using VMCA, and finishes with a chapter covering the tools that can be used to monitor the performance of a vSphere infrastructure.
Table of Contents (18 chapters)

Settings disk shares on virtual machine disks

Every ESXi host runs a local scheduler to monitor and balance the I/O between the virtual machines. If there are virtual machines generating a considerable amount of I/O (more than normal), then it is important to make sure that the other virtual machines running on the same datastore remain unaffected, in a manner that they should be allowed to issue I/O to the device with performance expected. This can be achieved by setting per-disk (vmdk) shares thereby controlling the volume of I/O each participating virtual machines can generate, during contention. Disk shares works pretty much like the CPU or memory shares and would only kick-in during contention. The default virtual disk share value is 1,000, high being 2,000 and low being 500. The disk with a relatively higher share value will get to issue a larger volume of I/O to the device...