| 摘要 |
A method, system and program product for managing data replication in a data replication system, the data replication system comprising a journal and a plurality of spindles configured to store a plurality of Logic Unit Numbers (LUN), the method comprising selecting a LUN of the LUNs to store journal I/O data from the data replication, wherein the selected LUN is configured to be a subset of the plurality of spindles, spinning down the spindles not configured to store the selected LUN, recording journal I/O on the selected LUN, determining to distribute the journal IO from the selected LUN disk to the non-selected LUNs, spinning up the spindles storing the non-selected LUNs, and distributing the journal I/O from the determined disks to the other LUNs. |
