Abstract: Handling multiple backup processes comprises detecting that a defined storage volume is present in a first cascade of storage volumes, detecting that the defined storage volume is also present in a second cascade of storage volumes, receiving a data write for either the defined storage volume or the last storage volume in the first cascade of storage volumes, and performing a cleaning data write on the defined storage volume in the second cascade of storage volumes, the cleaning data write corresponding to the received data write.
Type:
Grant
Filed:
March 2, 2011
Date of Patent:
September 10, 2013
Assignee:
International Business Machines Corporation