VMware VIEW COMPOSER 2.5 - ARCHITECTURE Manuale Utente Scaricare il pdf (Pagina 20)

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

PowerPath

Virtual Edition

Each data store that is used to store VMDK files is placed on the VNX5300 storage

over FC. PowerPath/VE is enabled for all FC-based LUNs to efficiently use all the

available paths for storage and to minimize the effect of micro-bursting I/O patterns.

vCenter Server

storage layout

The data store configuration in vCenter Server is as follows:

• pool 1_1 through pool 1_4—Each of the 750 GB data stores accommodates 125

users. This allows each desktop to grow to a maximum average size of 6 GB. The

pool of desktops created in View Manager is balanced across all these data stores.

• efd_replica and efd_replica2—These data stores are on two 100 GB EFDs with

RAID 1/0. The input/output to these LUNs is strictly read-only except during

operations that require copying a new replica into the data store.

VNX shared file

systems

Virtual desktops use two VNX shared file systems, one for user profiles and the other

to redirect user storage. Each file system is exported to the environment through a

CIFS share.

The following table shows the file systems used for user profiles and redirected user

storage.

File system Use Size

profiles_fs Users’ profile data 1 TB

userdata1_fs Users’ data 2 TB

EMC VNX for

File Home

Directory

feature

The EMC VNX for File Home Directory feature uses the userdata1_fs file system to

automatically map the H: drive of each virtual desktop to the users’ own dedicated

subfolder on the share. This ensures that each user has a dedicated home drive

share with exclusive rights to that folder. This export does not need to be created

manually. The Home Directory feature automatically maps this for each user.

The Documents folder of the users is also redirected to this share. This allows users

to recover the data in the Documents folder by using the VNX Snapshots for File.

The file system is set at an initial size of 1 TB. However, it can extend itself

automatically when more space is required.

Profile export

The profiles_fs file system is used to store user roaming profiles. It is exported

through CIFS. The UNC path to the export is configured in Active Directory for

roaming profiles as shown in the following figure:

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VMware VIEW COMPOSER 2.5 - ARCHITECTURE Manuale Utente Pagina 20

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