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)

Unmounting and detaching VMFS volumes

Unmounting a datastore is done when you intend to preserve the data on a VMFS volume, but still remove access to the volume. Detaching is performed on a LUN device and it is done to make sure that the access to the LUN is gracefully removed. It is recommended you unmount a VMFS datastore and detach its corresponding LUN device, before the LUN backing it is unpresented from an ESXi host.

Getting ready

Make a note of the NAA ID of the LUN corresponding to the VMFS volume. This can be done by selecting the datastore and navigating to Configure | Device Backing:

Alternatively, you can issue the command esxcli storage vmfs extent list:

It is advised that you take care of the following before...