Book Image

Mastering VMware vSphere Storage

By : Victor Wu, Eagle Huang
Book Image

Mastering VMware vSphere Storage

By: Victor Wu, Eagle Huang

Overview of this book

<p>vSphere Storage is one of the three main infrastructure components of a vSphere deployment (Compute, Storage, and Network).</p> <p>Mastering VMware vSphere Storage begins with an insightful introduction to virtualization and creating your own virtual machines. We then talk about VMware vCenter Server and virtual machine management, as well as managing vSphere 5 using vSphere Management Assistant (vMA) and esxcli and vmware-cmd commands. We then swiftly move on to a very interesting topic, reviewing the vSphere performance and troubleshooting methodology. We then configure VM storage profiles, Storage DRS, and Storage I/O control. More significantly, we will troubleshoot and analyze storage using the VMware CLI and learn how to configure iSCSI storage.</p> <p>By the end of the book, you will be able to identify useful information to make virtual machine and virtual data center design decisions.</p>
Table of Contents (21 chapters)
Mastering VMware vSphere Storage
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

A vSphere NFS storage troubleshooting example


Most customers use NFS storage to store the virtual machine and ISO. Because it is based on IP access, generally, an NFS problem is that the network connection or NFS is under the attack of reading and writing. Let's learn two examples; one problem is a general error accessing, reading, and writing, and the other problems in the use of software backup.

One user wants to use the NFS data store to store the virtual machines, but wants to mount. It shows an error message similar to this:

NFS Error: Unable to connect to NFS server

WARNING: NFS: 983: Connect failed for client 0xb613340 sock 184683088: I/O error

WARNING: NFS: 898: RPC error 12 (RPC failed) trying to get port for Mount Program (100005) Version (3) Protocol (TCP) on Server (192.168.10.4)

Network cable is unplugged

Now, how to troubleshoot the issue? Let's follow the steps:

  1. Check the MTU size on the port group that the NFS VMkernel used. You can use the vmkping command. You can also...