CLARiiON Snapshot error & Replication Manager

Dear All,

I faced following error message about CX snapshot error:

Feb 21, 2011 9:39:47 PM Win2K8 Replica Feb 21, 2011 9:39:47 PM created from application set appset, job ps by Administrator.
Feb 21, 2011 9:39:47 PM Win2K8 Starting Replication of [application set:appset / job:ps] at time Feb 21, 2011 9:39:47 PM.
Feb 21, 2011 9:39:47 PM Win2K8 This operation can take a long time. Please be patient.
Feb 21, 2011 9:40:31 PM Win2K8 001564 INFORMATION: Need storage for 1 source device residing on clariion CK200033800616.
Feb 21, 2011 9:40:31 PM Win2K8 001552 ERROR: Storage selection failed because there are no included devices.
Feb 21, 2011 9:40:31 PM Win2K8 101199 ERROR: Could not select storage for activity, ps.
Feb 21, 2011 9:40:31 PM Win2K8 000198 ERROR: Unable to select suitable storage for this replication.

I checked that CX have enough snapshot cache.

Could you point me what other direction to check?

Thank you

Dennis