EMC VNX2 Unified Best Practices for Performance.pdf
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EMC Core Technologies Division, VNX BU
Abstract
This applied best practices guide provides recommended best practices for
installing and configuring VNX2
™
unified storage systems for good
performance.
October 2015
EMC VNX2 Unified Best Practices for
Performance
Applied Best Practices Guide
VNX OE for Block 05.33.008
VNX OE for File 8.1.8
EMC VNX2 Unified Best Practices for Performance
Applied Best Practices Guide
2
Copyright © 2015 EMC Corporation. All rights reserved. Published in the USA.
Published October, 2015
EMC believes the information in this publication is accurate of its publication date.
The information is subject to change without notice.
The information in this publication is provided as is. EMC Corporation makes no
representations or warranties of any kind with respect to the information in this
publication, and specifically disclaims implied warranties of merchantability or
fitness for a particular purpose. Use, copying, and distribution of any EMC software
described in this publication requires an applicable software license.
EMC2, EMC, and the EMC logo are registered trademarks or trademarks of EMC
Corporation in the United States and other countries. All other trademarks used
herein are the property of their respective owners.
For the most up-to-date regulatory document for your product line, go to the technical
documentation and advisories section on EMC Online Support.
EMC VNX2 Unified Best Practices for Performance
Applied Best Practices Guide
Part Number H10938.8
EMC VNX2 Unified Best Practices for Performance
Applied Best Practices Guide
3
Contents
Chapter 1 System Configuration ............................................................. 7
Essential guidelines ........................................................................................ 8
Storage Processor cache ................................................................................. 8
Physical placement of drives........................................................................... 8
Hot sparing ..................................................................................................... 8
Usage of flash drives in hybrid flash arrays ..................................................... 9
Availability and connectivity ........................................................................... 9
Fibre Channel and iSCSI connectivity ................................................................... 10
NAS connectivity .................................................................................................. 11
Chapter 2 Storage Configuration ............................................................ 12
General considerations ................................................................................. 13
Drive type............................................................................................................. 13
Rules of thumb ..................................................................................................... 13
RAID level............................................................................................................. 14
Calculating disk IOPS by RAID type ....................................................................... 14
Determining which LUN type to configure...................................................... 15
Creating LUNs for Block access ............................................................................ 16
Creating LUNs for File access ................................................................................ 16
Storage pool considerations ......................................................................... 17
Storage pool creation and expansion ................................................................... 17
Pool capacity considerations ............................................................................... 18
Storage tiers ........................................................................................................ 18
Tiering policies ..................................................................................................... 19
Storage pool object considerations .............................................................. 19
Storage pool LUNs for Block access ..................................................................... 19
Storage Pool LUNs for File access ......................................................................... 20
Classic RAID Group LUN considerations ........................................................ 22
Drive location selection ........................................................................................ 22
Classic RAID Group LUNs for Block access ............................................................ 23
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