Hi Raj,       Thank you for posting your question to EMC VNXe Forum. Configuring replication takes two snapshots on both source and destination. VNXe matches both replication snapshots for delta difference.  In Unisphere, Snapshot tab shows different information in different columns.  First Column is name of snapshot which automatically gets generated with UTC timezone of replication snapshot creation time. This information never changes.  Second column is size of snapshot which is dynamic and depends on frequency of data change.  Third column shows expiration date of snapshot which also never changes for already taken snapshot or for replication snapshot  Fourth column is Taken date which shows snapshot creation time based on time shows in Unisphere. This information never updates as this only indicates creation time of snapshot but not last modified.  When replication syncs, it refreshes (erases existing data and put new data) replication snapshot. Saying that, it doesn't delete replication snapshot for every sync but refreshes existing snapshot. With this, creation date never changes.  Please find below screenshots from my lab:  [IMAGE]  [IMAGE]  Snapshot creation is independent with last sync time of replication session. Do let me know if this helps.  Regards, Swapnil
Hello,   we configured the replication between 2 VNXe3150 boxes. today we noticed 2 snapshots has time stamp of configuration setup day ( 10/02/2013 ) on both source and target vnxe but the replication is active /continuous ( 1hr xx mins) , here i attached the screenshot.   Question - why the old replication snapshots are there still ?               - i believe the replication use snapshots so if the replication status is active why don't we find any snapshots of today's date ?   Appreciate any help on this to make me understand the snapshot/replication here.
VNXe replication snapshots