Dell Avamar for Oracle 19.10 User Guide

Multi-streaming

Multi-streaming is a feature that enables a backup or a restore to use multiple RMAN channels to the Avamar server or the Data Domain system. A backup or restore that uses multiple RMAN channels runs multiple instances of avtar in parallel.

RMAN might not use all the RMAN channels that you specify. For example, if you specify 4 RMAN channels for a backup, RMAN might use only 2 channels. The backup ignores the other 2 channels. The default number of RMAN channels is 1 and the maximum is 10.

Allocating multiple RMAN channels for backups and restores can improve performance. Performance improvements for backups and restores, however, depend on the Oracle server configuration.

You can specify multiple RMAN channels for backups and restores by using the Number of RMAN Channels option in Avamar Administrator or by specifying allocate channel commands in an RMAN script.