发明名称 |
STORAGE CONTROL PROGRAM, STORAGE CONTROL METHOD, STORAGE SYSTEM AND HIERARCHY CONTROL APPARATUS THEREOF |
摘要 |
A non-transitory computer readable storage medium that stores a storage control program causing a computer to execute a control process of a storage including a first storage device with first access speed, and a second storage device with second access speed that is slower than the first access speed, includes monitoring access frequency to data in the first and second storage devices; relocating data, the access frequency of which exceeds a first reference value, in the second storage device, to the first storage device; and conducting a overload processing of retaining, in the cache memory, at least a part of the data in the second storage device when the second storage device is in an overload state. the access frequency monitoring is executed in a state where the partial data is retained in the cache memory, and the relocating is executed based on the access frequency to the partial data. |
申请公布号 |
US2014297940(A1) |
申请公布日期 |
2014.10.02 |
申请号 |
US201414198656 |
申请日期 |
2014.03.06 |
申请人 |
FUJITSU LIMITED |
发明人 |
Kobayashi Eiichi;Terai Sachiko;Shao Chunyou;Ribault Pierre |
分类号 |
G06F12/08 |
主分类号 |
G06F12/08 |
代理机构 |
|
代理人 |
|
主权项 |
1. A non-transitory computer readable storage medium that stores therein a storage control program causing a computer to execute a control process of a storage including a first storage device with first access speed, a second storage device with second access speed that is slower than the first access speed, and a cache memory,
the control process comprising: to monitoring access frequency to data in the first and second storage devices; relocating data, the access frequency of which exceeds a first reference value, in the second storage device, to the first storage device; and conducting a overload processing of retaining, in the cache memory, at least a part of the data in the second storage device when the second storage device is in an overload state, wherein the access frequency monitoring is executed in a state where the partial data is retained in the cache memory, and the relocating is executed based on the access frequency to the partial data. |
地址 |
Kawasaki-shi JP |