Hello,  You are very welcome.   Re: Clone.  Yes clone creation is very fast regardless of size of the volume.  Re: Replica clone.  Yes, it will remain if you delete the replica set.  
Hi there, In my company, we have two SAN groups (Dell EQL PS6100) with replication configured on each volume of a SAN group. Sometimes we need to proceed space reclaim on a specific SAN volume. To do so, I need to disable the replication on this volume, I execute the space reclaim on a mapped ESX host and then I reconfigure the replication which will create a new replica set (with a full first copy). During this operation (according to the volume size, a few hours), if something goes wrong on the SAN volume, we lost the VMs hosted on this volume because the first replica hasn't been created yet. I could keep the replica set before disabling the replication, but the target SAN doesn't take into account the new volume size ... I have also thought about cloning the replica before disabling it (and destroying it) but it will take so much time ... Has anyone got an other idea to keep protected the data when I proceed a space reclaim ? Thank you in advance   
vSphere / Space Reclaim / SAN Replication