<p>A first data structure stores indications of storage locations that need to be copied for forming a consistency group, a second data structure stores indications of new host writes, subsequent to starting a point in time copy operation to form the consistency group, locations of the first data structure and the second data structure are exchanged, subsequent to the consistency group being formed successfully.</p>
申请公布号
WO2014060882(A1)
申请公布日期
2014.04.24
申请号
WO2013IB58876
申请日期
2013.09.26
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION;IBM UNITED KINGDOM LIMITED;IBM (CHINA) INVESTMENT COMPANY LIMITED