The SyncMirror feature is an optional feature of Data ONTAP that gives you the capability for real-time mirroring of data within a single aggregate.
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 within a single aggregate.
The following provides information about the activities of SyncMirror:
However, FlexVol volumes can be mirrored as part of an aggregate.