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vSphere High Performance Cookbook - Second Edition

You're reading from   vSphere High Performance Cookbook - Second Edition Recipes to tune your vSphere for maximum performance

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Product type Paperback
Published in Jun 2017
Publisher
ISBN-13 9781786464620
Length 338 pages
Edition 2nd Edition
Tools
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Authors (3):
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Christopher Kusek Christopher Kusek
Author Profile Icon Christopher Kusek
Christopher Kusek
Prasenjit Sarkar Prasenjit Sarkar
Author Profile Icon Prasenjit Sarkar
Prasenjit Sarkar
Kevin Elder Kevin Elder
Author Profile Icon Kevin Elder
Kevin Elder
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Toc

Table of Contents (11) Chapters Close

Preface 1. CPU Performance Design FREE CHAPTER 2. Memory Performance Design 3. Networking Performance Design 4. DRS, SDRS, and Resource Control Design 5. vSphere Cluster Design 6. Storage Performance Design 7. Designing vCenter on Windows for Best Performance 8. Designing VCSA for Best Performance 9. Virtual Machine and Virtual Environment Performance Design 10. Performance Tools

Designing a highly available and high-performance iSCSI SAN

The main reason why people use iSCSI SANs is that they handle longer transmission distances and are less expensive than Fiber Channel SANs.

iSCSI SAN's performance mainly gets affected by network congestion. Most of the time, network congestion is usually the result of an inappropriate network configuration or improper network settings.

For example, a common problem that we see is a switch in the data path into the storage system that is fragmenting frames. It happens most of the time for jumbo frames, and network oversubscription also plays a crucial role there. A slow switch somewhere in the path can reduce the overall speed of the network connection because of this slowest link.

Getting ready

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