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...
VMware vSphere 6.5 Cookbook - Third Edition
By :
VMware vSphere 6.5 Cookbook - Third Edition
By:
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)
Free Chapter
Upgrading to vSphere 6.5
Greenfield Deployment of vSphere 6.5
Using vSphere Host Profiles
Using ESXi Image Builder
Using vSphere Auto Deploy
Using vSphere Standard Switches
Using vSphere Distributed Switches
Creating and Managing VMFS Datastore
Managing Access to the iSCSI and NFS Storage
Storage IO Control, Storage DRS, and Profile Driven Storage
Creating and Managing Virtual Machines
Configuring vSphere 6.5 High Availability
Configuring vSphere DRS, DPM, and VMware EVC
Upgrading and Patching using vSphere Update Manager
Using vSphere Certificate Manager Utility
Using vSphere Management Assistant
Performance Monitoring in a vSphere Environment
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