Mike Preston - Troubleshooting vSphere Storage
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- Book:Troubleshooting vSphere Storage
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Become a master at troubleshooting and solving common storage issues in your vSphere environment
Overview
- Identify key issues that affect vSphere storage visibility, performance, and capacity
- Comprehend the storage metrics and statistics that are collected in vSphere
- Get acquainted with the many vSphere features that can proactively protect your environment
In Detail
Virtualization has created a new role within IT departments everywhere; the vSphere administrator. vSphere administrators have long been managing more than just the hypervisor, they have quickly had to adapt to become a jack of all trades in organizations. More and more tier 1 workloads are being virtualized, making the infrastructure underneath them all that more important. Due to this, along with the holistic nature of vSphere, administrators are forced to have the know-how on what to do when problems occur.
This practical, easy-to-understand guide will give the vSphere administrator the knowledge and skill set they need in order to identify, troubleshoot, and solve issues that relate to storage visibility, storage performance, and storage capacity in a vSphere environment.
This book will first give you the fundamental background knowledge of storage and virtualization. From there, you will explore the tools and techniques that you can use to troubleshoot common storage issues in todays data centers.
You will learn the steps to take when storage seems slow, or there is limited availability of storage. The book will go over the most common storage transport such as Fibre Channel, iSCSI, and NFS, and explain what to do when you cant see your storage, where to look when your storage is experiencing performance issues, and how to react when you reach capacity. You will also learn about the tools that ESXi contains to help you with this, and how to identify key issues within the many vSphere logfiles.
What you will learn from this book
- Identify the root cause of storage issues within vSphere
- Understand where to look when storage is suddenly not available
- Use esxtop to monitor and discover pain points in your infrastructure
- Diagnose and resolve SCSI reservations and queuing issues
- Design storage properly based on workloads
- Monitor and alert on your thinly provisioned disks and data store capacity
- Utilize Storage DRS to proactively balance your capacity and workload on your data stores
- Maintain compliance in terms of placement with Profile Driven Storage
- Grant VMs the performance they need with Storage I/O Control
- Decipher storage-related error entries in the vSphere logfiles
Approach
This is a step-by-step example-oriented tutorial aimed at showing the reader how to troubleshoot a variety of vSphere storage problems, and providing the reader with solutions that can be completed with minimal effort and time in order to limit damage to work.
Who this book is written for
If you are a vSphere administrator, this is the book for you. This book will provide you with need to know information about the various storage transports that ESXi utilizes, the tools and techniques we can use to identify problems, and the fundamental knowledge and steps to take to troubleshoot storage-related issues. Prior knowledge of the VMWare environment is assumed.
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Copyright 2013 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
First published: November 2013
Production Reference: 1131113
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham B3 2PB, UK.
ISBN 978-1-78217-206-2
www.packtpub.com
Cover Image by Aniket Sawant (<>)
Author
Mike Preston
Reviewers
Jason Langer
Mario Russo
Aravind Sivaraman
Eric Wright
Acquisition Editor
Owen Roberts
Commissioning Editor
Shaon Basu
Technical Editors
Kanhucharan Panda
Vivek Pillai
Project Coordinator
Aboli Ambardekar
Proofreader
Jenny Blake
Indexer
Mariammal Chettiyar
Graphics
Yuvraj Mannari
Production Coordinator
Arvindkumar Gupta
Cover Work
Arvindkumar Gupta
Mike Preston is an IT professional and an overall tech enthusiast living in Ontario, Canada. He has held all sorts of IT titles over the last 15 years including Network Technician, Systems Administrator, Programmer Analyst, Web Developer, and Systems Engineer in all sorts of different verticals, from sales to consulting. Currently, he is working as a Systems Analyst supporting the education market near his home in Belleville, Ontario.
Mike has always had an intense passion for sharing his skills, solutions, and work with various online communities, most recently focusing on the virtualization communities. He is an avid blogger at blog.mwpreston.net and participates in many discussions on Twitter (@mwpreston). It's his passion for sharing within the virtualization community which has led to Mike receiving the vExpert award for 2012 and 2013.
Mike has presented at VMworld, VMUGs, and various virtualization conferences on numerous times both as a customer and an overall evangelist and has published different whitepapers and articles for various tech websites. His commitment to giving back to the community has resulted in his most recent venture of becoming a Toronto VMUG co-leader. He is a VMware Certified Professional in Datacenter Virtualization on both Version 4 and 5 of vSphere and is currently pursuing his VCAP5-DCA, which he hopes to accomplish by 2014.
Firstly, I would like to thank my wife Alicia for putting up with all my late night and early morning writing sessions. I would also like to thank my two children, Hayden and Clara. Without their support, the completion of this book would have been nearly impossible.
Secondly, I would like to thank my technical reviewers Jason Langer, Eric Wright, and Angelo Luciani. Having those powerful brains comb over my work is one of the best decisions I ever made.
Lastly, I would like to thank the virtualization community. Without the many hours donated by the mentors, vRockstars, and others involved in the community, I would certainly not have been able to accomplish a project of this size. It's definitely a welcoming and helpful community and I'm humbled and happy to be a part of it.
Jason Langer works as a Solutions Architect for a VMware partner in the Pacific Northwest region helping customers achieve their datacenter virtualization goals. Jason has obtained multiple levels of certification both from Microsoft and VMware and brings 15 years of IT experience to the table. When not working his day job, Jason is active in the VMware community as a member of the Seattle VMUG Steering Committee and generating content for his blog, virtuallanger.com.
He is also currently working as a technical reviewer for VMware ESXi 5.1 Cookbook , Mohammed Raffic Kajamoideen , Packt Publishing .
Mario Russo has worked as an IT Architect, a Senior Technical VMware Trainer, and in the pre-sales department. He has also worked on VMware technology since 2004.
In 2005, he worked for IBM on the First Large Project Consolidation for Telecom Italia on the Virtual VMware ESX 2.5.1 platform in Italy with Physical to Virtual ( P2V ) tool.
In 2007, he conducted a drafting course and training for BancoPosta, Italy, and project disaster and recovery (DR Open) for IBM and EMC.
In 2008, he worked for the Project Speed Up Consolidation BNP and the migration P2V on VI3 infrastructure at BNP Cardif Insurance.
He is a VMware Certified Instructor ( VCI ) and is certified in VCAP5-DCA.
He is also the owner of Business to Virtual, which specializes in virtualization solutions.
He was also the technical reviewer of the book, Implementing VMware Horizon View 5.2 , Jason Ventresco , Packt Publishing .
I would like to thank my wife Lina and my daughter Gaia. They're my strength.
Aravind Sivaraman is a Virtualization Engineer with more than seven years of experience in the IT industry and for the past five years, he has been focused on virtualization solutions especially on VMware products. He has been awarded with the VMware vExpert title for the year 2013. He is a VMware Technology Network ( VMTN ) contributor and maintains his personal blog at http://aravindsivaraman.wordpress.com/. He can also be followed on Twitter (@ss_aravind).
I would like to thank my wife and my family members for supporting me towards the contribution of this book.
Eric Wright is a Systems Architect and VMware vExpert with a background in virtualization, business continuity, PowerShell scripting, and systems automation in many industries including financial services, health services, and engineering firms. As the author behind www.DiscoPosse.com, a technology and virtualization blog, Eric is also a regular contributor to community driven technology groups such as the VMUG organization in Toronto, Canada. You can connect with Eric at www.twitter.com/DiscoPosse.
When Eric is not working in technology, you may find him with a guitar in his hand or riding a local bike race or climbing over the obstacles on a Tough Mudder course. Eric also commits time regularly to charity bike rides and running events to help raise awareness and funding for cancer research through a number of organizations.
I wish I could thank everyone personally, but let me say thank you to my family, friends, and the very special people who've inspired me to be involved with technology. Thank you to the amazing and very accepting technology community who have helped me to be able to share my knowledge and to learn from the amazing minds that drive this incredible community.
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