1. A method comprising: receiving a read request from a secondary instance of a server application, the secondary instance of the server application having a corresponding primary instance that is hosted in a first portion of a computing environment; and examining the received read request to determine whether the received read request is a first instance of a read request received for a particular target resource, and if so, executing a read operation to read data from a segment of a time-fixed data image corresponding to the particular target resource, the time-fixed data image being representative of a state of data in the first portion of the computing environment at a particular point in time, otherwise, executing a read operation to read data from a storage location associated with a second portion of the computing environment.