| 发明名称 | Raid group control device | ||
| 摘要 | A RAID group control device for performing access control over one or more RAID groups each having redundancy. The RAID group control device includes an acquiring unit to acquire access frequency information with respect to a RAID group among the one or more RAID groups; a scheduling unit to find a time period exhibiting a lower access frequency than access frequencies of anterior and posterior time periods in a specified time range on the basis of the access frequency information, and to determine start timing of a process of rewriting firmware of drives belonging to the RAID group on the basis of the found time period; and a firmware rewrite processing unit to start the process of rewriting the firmware of the drives at the determined start timing. | ||
| 申请公布号 | US8812780(B2) | 申请公布日期 | 2014.08.19 |
| 申请号 | US201213563023 | 申请日期 | 2012.07.31 |
| 申请人 | Fujitsu Limited | 发明人 | Yoshida Masahiro;Matsumura Tadashi |
| 分类号 | G06F12/02;G06F3/06 | 主分类号 | G06F12/02 |
| 代理机构 | Fujitsu Patent Center | 代理人 | Fujitsu Patent Center |
| 主权项 | 1. A RAID group control device for performing access control over one or more RAID groups each having redundancy, the device comprising: an acquiring unit configured to acquire access frequency information with respect to a RAID group among the one or more RAID groups; a scheduling unit configured to find a time period exhibiting a lower access frequency than access frequencies of anterior and posterior time periods in a specified time range on the basis of the access frequency information, and to determine start timing of a process of rewriting firmware of drives belonging to the RAID group on the basis of the found time period; and a firmware rewrite processing unit configured to start the process of rewriting the firmware of the drives at the determined start timing. | ||
| 地址 | Kawasaki JP | ||