Specifies the amount of memory available on the client when files are compressed during backup. If you select compression, the client software uses this value to determine how much space to request for the compression tables. The more memory that is available to compress code, the greater the compression and the greater the percentage of machine resources that are used. If other processes also need memory, use a maximum value of half the actual physical memory on a machine to avoid excessive swapping.

The default is 0. This default is reasonable; change it only if problems are encountered.