SnapMirror network compression compresses the data stream on the source system, transfers the compressed data stream over the network, and uncompresses the data stream on the destination system before writing it to disk.
SnapMirror network compression also increases resource utilization on both the SnapMirror source and destination systems. Therefore, you need to evaluate the resource usage and benefits before deploying compression. For example, compression might not be useful for a high-bandwidth, low-latency connection. But it can be useful for connections that have relatively low bandwidth, such as WAN connections.
SnapMirror network compression is supported only for asynchronous volume SnapMirror.