VMware CLOUD DIRECTOR 1.0 Manuel d'utilisateur télécharger pdf (Page 11)

PERFORMANCE STUDY /11

VMware vCloud Director 1.0 Performance and Best Practices

Figure 6. VMware vCloud Director High Level Architecture

Note: All the results for OVF file upload in this white paper were collected through the vCloud Director user

interface.

OVF File Upload Latency for Different File Sizes

Before it can upload an OVF package, the client needs to verify the checksum of the VMDK files. After this occurs,

the files in the OVF package are transferred to the vCloud Director cell. Upon the completion of file transfers from

the client to the cell, the cell verifies the checksum of VMDK files again to ensure that no files were corrupted

during this transfer. The last step is to upload the OVF package into one of the ESX hosts by using

deployOVFPackage API calls against vCenter Server.

The majority of time is spent in client-to-cell transfer, as shown in Figure 7. For bigger files, the total latency to

upload is longer.

VMware vCloud Director 1.0

vCenter Server

vCenter Database

ESX/ESXi Hosts

vCloud Director Cells

Shared OVF

transfer disk buffer

HTTPS

Client

VMware vSphere 4.0

OVF

Package

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VMware CLOUD DIRECTOR 1.0 Manuel d'utilisateur Page 11