SnapMirror Async mode replicates Snapshot copies from a SOURCE volume or qtree to a DESTINATION. It will support to replicate more than 800Kms Long. volume or qtree. Incremental updates are based on a schedule or are performed manually using the snapmirror update command. Async mode works with both volume SnapMirror and qtree SnapMirror.

SnapMirror SYNC mode replicates writes from a source volume to a destination volume at the same time it is written to the source volume. SnapMirror Sync is used in environments that have zero tolerance for DATA loss. it will NOTE support more then 300Kms long.

SnapMirror Semi-Sync provides a middle-ground solution that keeps the source and destination systems more closely synchronized than Async mode, but with less impact on performance.

SnapMirror Async mode replicates Snapshot copies from a source volume or qtree to a destination. It will support to replicate more than 800Kms Long. volume or qtree. Incremental updates are based on a schedule or are performed manually using the snapmirror update command. Async mode works with both volume SnapMirror and qtree SnapMirror.

SnapMirror Sync mode replicates writes from a source volume to a destination volume at the same time it is written to the source volume. SnapMirror Sync is used in environments that have zero tolerance for data loss. it will note support more then 300Kms long.

SnapMirror Semi-Sync provides a middle-ground solution that keeps the source and destination systems more closely synchronized than Async mode, but with less impact on performance.