Hi again We currently use SQL for our XenApp 4.5 Datastore. This DB is replicated to our DR site In a DR Scenario, my understanding is 1) Create new DSN file on all XenApp Servers (Eg MF20DR.DSN) which references the SQL Server in DR site 2) Run DSMaint command so DR XenApp Servers use DR Datastore dsmaint config /user:domain\Account /pwd:Password /dsn:"C:\Program Files\Citrix\Independent Management Architecture\MF20DR.dsn" 3) Rollback would be the same dsmaint command referencing MF20.DSN Is this correct? Thanks Ang _________________________________________________________________ If It Exists, You'll Find it on SEEK. Australia's #1 job site http://clk.atdmt.com/NMN/go/157639755/direct/01/