Storage apparatus, relay device, and method of controlling operating state
AssigneeFujitsu Limited
InventorTerumasa Haneda
Life of this patent
Estimating the term…
Abstract
Each time any one of HDDs is accessed, a corresponding relationship between the disk address of the accessed HDD and the time information indicating a time at which the HDD is accessed is added to a first operating-state management table. When a corresponding relationship with the same disk address already exists in the first operating-state management table, the time information is updated. When the first operating-state management table has no space available for new entry, corresponding relationships are deleted from the one having the oldest time information. Only HDDs of which disk address is recorded in the first operating-state management table is turned on.
Claims11
A storage apparatus comprising:
- a power supply unit that is connected to an external power source and supplies power;
- a storage device that is supplied with power from the power supply unit to operate;
- and
- a relay device that controls access to the storage device, wherein
- the relay device is provided with a first region that stores a first storage device management information to register therein a predetermined number of corresponding relationships between identifying information and time information in an order of time indicated by the time information from newest to oldest, the identifying information identifying the storage device accessed by a server, the time information indicating a time at which the storage device is accessed by the server,
- the relay device is provided with a second region that stores a second storage device management information to register therein a predetermined number of the corresponding relationships in an order of time indicated by the time information from newest to oldest, the newest time indicated by the time information registered in the second storage device management information being older than the oldest time indicated by the time information registered in the first storage device management information, and
- the relay device includes an operation control unit that controls an operating state of the storage device based on the first storage device management information and the second storage device management information.
A relay device that is provided in a storage apparatus including a storage device to control access to the storage device, the relay device comprising:
- a first region that stores a first storage device management information to register therein a predetermined number of corresponding relationships between identifying information and time information in an order of time indicated by the time information from newest to oldest, the identifying information identifying the storage device accessed by a server, the time information indicating a time at which the storage device is accessed by the server;
- a second region that stores a second storage device management information to register therein a predetermined number of the corresponding relationships in an order of time indicated by the time information from newest to oldest, the newest time indicated by the time information registered in the second storage device management information being older than the oldest time indicated by the time information registered in the first storage device management information, and
- an operation control unit that controls an operating state of the storage device based on the first storage device management information and the second storage device management information.
A method of controlling an operating state of a storage device in a storage apparatus, the method being applied to a relay device that controls access to the storage device, the method comprising:
- first registering in a first storage device management information a predetermined number of corresponding relationships between identifying information and time information in an order of time indicated by the time information from newest to oldest, the identifying information identifying the storage device accessed by a server, the time information indicating a time at which the storage device is accessed by the server;
- second registering in a second storage device management information a predetermined number of the corresponding relationships in an order of time indicated by the time information from newest to oldest, the newest time indicated by the time information registered in the second storage device management information being older than the oldest time indicated by the time information registered in the first storage device management information, and
- controlling an operating state of the storage device based on the first storage device management information and the second storage device management information.
Dependencies are inferred from the claim text.