Patent ID: 8595454
Filing Date: 2013-11-26
Classification: G06F

Abstract:
1. A method comprising: detecting that a first set of one or more blocks of client data has not been relocated subsequent to a prior off-host backup operation, wherein detecting that a second set of one or more blocks of the client data has been relocated subsequent to the prior off-host backup operation; providing a media server with a previously calculated set of mapping information for the first set of one or more blocks, in response to the detecting that the first set of one or more blocks has not been relocated, wherein recalculating mapping information for the second set of one or more blocks, in response to the detecting that the second set of one or more blocks has been relocated; and providing the media server with the recalculated mapping information instead of previously calculated mapping information for the second set of one or more blocks, subsequent to the recalculating.