| 摘要 |
PROBLEM TO BE SOLVED: To eliminate memory shortage without increasing hardware resources when available memories will be used up soon. SOLUTION: A computer holds information on a threshold of memory usage set by a user. An OS regularly compares and monitors a current memory usage with the threshold of the memory usage held by the computer. The OS reports, upon detection of that the usage of the memory becomes equal to or higher than the memory usage threshold, that the memory usage exceeds the threshold to an F/W. The F/W of the computer hot-removes, upon receipt of the report, a memory in accessible from the OS by memory mirroring. Thereafter, the F/W releases the memory mirroring function, and hot-adds the memory again. Further, the F/W disposes the hot-added memory in a memory address space accessible from the OS, and reports the operation completion to the OS. COPYRIGHT: (C)2009,JPO&INPIT
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