VMware VIEW COMPOSER 2.5 - ARCHITECTURE Manual de usuario descargar pdf (Pagina 38)

EMC Infrastructure for Virtual Desktops Enabled by EMC VNX Series,

VMware vSphere 4.1, VMware View 4.5, and VMware View Composer 2.5 Proven Solution Guide

• Microsoft Word 2007—One instance to measure the response time and one

instance to edit the document.

• Bullzip PDF Printer and Acrobat Reader—The Word document was printed and the

PDF was reviewed.

• Microsoft Excel 2007—A very large sheet was opened and random operations

were performed.

• Microsoft PowerPoint 2007—A presentation was reviewed and edited.

•

7-zip—Using the command line version, the output of the session was zipped.

launcher

A Login VSI launcher is a Windows system that launches desktop sessions on target

virtual desktops. There are two types of launchers—master and slave. There is only

one master in a given test bed and there can be as many slave launchers as

required.

The number of desktop sessions a launcher can run is typically limited by the CPU or

memory resources. Login consultants recommend using a maximum of 45 sessions

per launcher with two CPU cores (or two dedicated vCPUs) and 2 GB RAM, when

the GDI limit has not been tuned (default). However with the GDI limit tuned, this limit

extends to 60 sessions per two-core machine.

In this validated testing, 500 desktop sessions were launched from 12 launcher

virtual machines, resulting in approximately 42 sessions established per launcher.

Each launcher virtual machine is allocated two vCPUs and 4 GB of RAM. There

were no bottlenecks observed on the launchers during the VSI-based tests.

FAST Cache

configuration

For all tests, FAST Cache was enabled for the storage pool holding the four Pool1_x

data stores. FAST Cache is not enabled for the EFD-based replica image.

Replica storage

configuration

Two LUNs were created on two EFDs with a RAID 1/0 configuration for hosting

replica data stores. The replicas were split across both SPs for the load balancing.

Read cache is enabled on the LUNs.

Result analysis

Introduction

This section explains the results for the different test scenarios.

Boot storm results

Test

methodology

This test was conducted by selecting all the desktops in vCenter Server and

selecting Power On. Overlays are added to the graphs to show when the last power-

on task completed and when the IOPS to the pool LUNs achieved a steady state.

For the boot storm test, all the desktops were powered on within 8 minutes and

achieved steady state approximately 3 minutes later. The total start-to-finish time

was approximately 11 minutes.

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