| 主权项 |
1. A computer system comprising:
a plurality of nodes, wherein the plurality of nodes include an I/O (Input/Output) node and a plurality of computation nodes which are coupled to the I/O nodes one by one and send an I/O request to the I/O nodes, the I/O node includes a first storage device which stores data written or read according to the I/O request and a first memory device on which a first cache area is based to temporarily store the data written in the first storage device or read from the first storage device, the computation node includes a second memory device on which a second cache area is based to temporarily store the data according to the I/O request, at least one of the I/O node and the computation node stores management information which contains information on a physical storage area in the cache area of the other one of the I/O node and the computation node, and information on a virtual storage area which is associated with the physical storage area and has a part of its own cache area, and a target node in the plurality of nodes controls arrangement of data stored in the second cache area based on the management information of the computation node or the management information of the I/O node. |
