Advanced compression in Data Guard
Oracle Database 11g Advanced Compression introduced several set of options. Oracle also introduced compression for network traffic. With the option of advanced compression, the primary database will send the redo data and may be transported in a compressed format to reduce network consumption on the standby database. In the earlier releases, redo has been compressed over the network using third-party utilities such as WAN accelerators and other tools. To use the compression feature of Oracle, you must have purchased the license of Oracle 11g advanced compression. By licensing this option, archive gaps can be resolved up to three times faster, thereby providing better protection, and network utilization can be controlled by reducing the redo transfer time. Compression is supported for all the redo transport modes such SYNC
and ASYNC
and for the transport methods such as ARCH and LGWR to resolve gaps of Data Guard. These are compatible with all the protection...