SreeHari, At this time reclaim of zero extents while SRDF replication is active is not supported at any Enginuity or Solutions Enabler level.  You can perform reclaim of persistent allocations if you add the persistent qualifier to the 'start reclaim' command.  You can also remove the persistent attribute by using the 'symdev unset -persistent' option.   See the primus articles below on restirctions of reclaim: emc301329"Solutions Enabler: Error while running the StorReclaim utility "No thin device is associated with such volume""  emc231508"No space is reclaimed against R1 device when the RDF link is in an Established state."
Hi All,       Is there a specific reason that a LUN that is replicated can't be reclaimed with the SRDF still active? Are there no patches or enginuity fixes, available with the latest releases of the Enginuity to prevent the SRDF from being suspended while trying to reclaim the space on the LUN?      Also, is there a way to remove the persistent allocation on a thin device, non-disruptively? Being a device level setting, there should have been some way to reset this tag, but did not find that.   Please suggest..  Thanks, SreeHari
Reclaim of a thin LUN