Applies to ONTAP 9 Answer No, ALL writes are considered synchronous in ONTAP. Additional Information Typically clients perform much smaller write offsets when using 'sync' mount option. This causes no...Applies to ONTAP 9 Answer No, ALL writes are considered synchronous in ONTAP. Additional Information Typically clients perform much smaller write offsets when using 'sync' mount option. This causes noticable performance issues as clients will wait for small offsets to be ack'ed before sending the next offset.