Control program of storage control device, control method of storage control device and storage control device

摘要

For segments having the number of IOs exceeding a threshold, a data collection unit connects adjacent segments whose distance is within “s” to each other and extracts the connected segments and segments in the range of “s” from outside of the connected segments as an n_segment. A workload analysis unit then determines a target whose data is moved from an HDD to an SSD in units of n_segments.

主权项

1. A non-transitory computer-readable storage medium having stored therein a control program causing a computer to execute a process comprising:
counting number of inputs and outputs for each unit area of a plurality of unit areas obtained by dividing an area that is used in a first storage device into a predetermined size; first identifying a unit area having the number of inputs and outputs larger than a first threshold as a high load area; second identifying an area obtained by combining an extended area in which an identified high load area and a unit area or unit areas within a predetermined distance from the high load area are connected to each other with other extended areas connected to the extended area, as a movement area; and moving data of an identified movement area to a second storage device that has a speed higher than that of the first storage device.