SyncMirror is an optional feature of Data ONTAP. It is used to mirror data to two separate aggregates. It allows for real-time mirroring of data to matching aggregates physically connected to the same storage system.
SyncMirror provides for synchronous mirroring of data, implemented at the RAID level. You can use SyncMirror to create aggregates that consist of two copies of the same WAFL file system. The two copies, known as plexes, are simultaneously updated. Therefore, the copies are always identical. The two plexes are directly connected to the same system.
The following provides information about the activities of SyncMirror:
For more information about aggregates and volumes, see the Data ONTAP Storage Management Guide for 7-Mode.