Patent ID: 8041641

Claim:
A method comprising: making a first determination, using at least a first processor, that an encrypted first portion of a first payload data for a first storage account is absent from a backup storage; storing the encrypted first portion of the first payload data in the backup storage, wherein the storing the encrypted first portion of the first payload data is performed in response to the first determination; making a second determination, using at least a second processor, that an encrypted first portion of a second payload data for a second storage account is absent from the backup storage, wherein the second storage account is distinct from the first storage account, and wherein the making the second determination comprises determining that the encrypted first portion of the second payload data does not match the encrypted first portion of the first payload data; and storing the encrypted first portion of the second payload data in the backup storage, wherein the storing the encrypted first portion of the second payload data is performed in response to the second determination.