You can reduce the amount of data that is sent over the network during transfer operations between the client computers that host local desktops and the datacenter. You use deduplication and compression to optimize data transfers.

Deduplication and Compression Settings for Data Transfers shows the deduplication and compression settings for data transfers.

Transfer operations include checking in and checking out desktops, replicating data from local desktops to the datacenter, and downloading system images to local desktops.

You can determine the impact of deduplication and compression on data transfers by reading the View Client with Local Mode logs. See Determining the Effects of Deduplication and Compression on Data Transfers.

Deduplication and Compression Settings for Data Transfers

Setting

Description

Use deduplication for Local Mode operations

Prevents redundant data from being sent from client computers to the datacenter. Deduplication operates on transfers from the client computer to the datacenter, including replications and desktop check-ins. Deduplication does not take place when desktops are checked out.

With deduplication, the client computer detects identical blocks of data and sends a reference to the original block instead of sending the entire block again.

Deduplication is valuable on slow networks because it saves network bandwidth. However, deduplication can add to the CPU workload on the client computer when it checks for identical data blocks and to the I/O workload on View Transfer Server when it reads duplicate blocks from disk. On fast networks, it might be more efficient to disable deduplication.

The default is not to use deduplication.

Use compression for Local Mode operations

Compresses system-image and desktop files before sending them over the network.

Like deduplication, compression saves bandwidth and speeds up transfers over slow networks. However, View Transfer Server uses additional computing resources to compress files. When you decide whether to use compression, you must weigh the benefits in network performance against the cost in server computing.

The default is not to use compression.