I have two netapp devices for which are configured synchronous replication( snapmirror) on all volumes.
I am planning to change the replication for some of the volumes to asynchronous. Every Volume has one or two LUNs.
My question is how I should design LUNs space inside Volumes, and volume space inside Aggregate. How much space need to be reserved. For example my LUN is 500GB and my volume is 600GB. And if the changed data inside the lun is more than 100GB what will happen?
What is the best practices design?