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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

EMC VNX series storage architecture

Introduction

The EMC VNX series is a dedicated network server optimized for file and block

access that delivers high-end features in a scalable and easy-to-use package.

The VNX series delivers a single-box block and file solution, which offers a

centralized point of management for distributed environments. This makes it possible

to dynamically grow, share, and cost-effectively manage multiprotocol file systems

and provide multiprotocol block access. Administrators can take advantage of the

simultaneous support for NFS and CIFS protocols by allowing Windows and

Linux/UNIX clients to share files by using the sophisticated file-locking mechanisms

of VNX for file and VNX for block for high-bandwidth or for latency-sensitive

applications.

This solution uses both block-based and file-based storage to leverage the benefits

that each of the following provides:

• Block-based storage over Fibre Channel (FC) is used to store the VMDK files for

all virtual desktops. This has the following benefits:

− Block storage leverages the VAAI APIs (introduced in vSphere 4.1) that includes

a hardware-accelerated copy to improve the performance and for granular

locking of the VMFS to increase scaling.

− PowerPath Virtual Edition (PowerPath/VE) allows better performance and

scalability as compared to the native multipathing options.

• File-based storage is provided by a CIFS export. This has the following benefits:

− Redirection of user data and roaming profiles to a central location for easy

backup and administration.

− Single instancing and compression of unstructured user data to provide the

highest storage utilization and efficiency.

This section explains the configuration of the storage that was provided over FC to

the ESX cluster to store the VMDK images and the storage that was provided over

CIFS to redirect user data and roaming profiles

Storage layout

The following diagram shows the storage layout of the disks.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 72 73

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VMware VIEW COMPOSER 2.5 - ARCHITECTURE Manuale Utente Pagina 18