1. A system to protect data, comprising: a processor; and a memory coupled to the processor to store instructions executable by a digital processing apparatus to perform operations to protect stored data, the operations comprising: receiving a write request for a current data input comprising input to be written to at least one monitored region of a storage volume; determining whether the current data input is a complete managed object and whether the current data input completes a previously deferred I/O operation; and writing the current data input to a deferred storage device based on the determinations.