| US 7,555,601 B2 | ||
| Storage control system including virtualization and control method for same | ||
| Kenji Yamagami, Odawara (Japan) | ||
| Assigned to Hitachi, Ltd., Tokyo (Japan) | ||
| Filed on Oct. 25, 2007, as Appl. No. 11/976,483. | ||
| Application 11/976483 is a continuation of application No. 11/448870, filed on Jun. 08, 2006, granted, now 7,310,702. | ||
| Application 11/448870 is a continuation of application No. 10/834989, filed on Apr. 30, 2004, granted, now 7,093,068. | ||
| Claims priority of application No. 2004-042048 (JP), filed on Feb. 18, 2004. | ||
| Prior Publication US 2008/0065853 A1, Mar. 13, 2008 | ||
| Int. Cl. G06F 12/00 (2006.01) | ||
| U.S. Cl. 711—114 [711/170] | 41 Claims |
| 1. A storage control system, comprising:
a storage control device being adapted to manage a plurality of storage pools each comprising a plurality of logical storage
devices and being adapted to manage a plurality of storage areas in each of the plurality of storage pools, the plurality
of logical storage devices being prepared on one or more RAID (Redundant Array of Inexpensive Disks) groups by management
of the storage control device;
wherein the storage control device is adapted to provide a first logical unit, which can be accessed by one of a plurality
of external terminals and is associated with a first pool of the plurality of storage pools;
wherein the storage control device is adapted to provide a second logical unit, which can be accessed by one of the plurality
of external terminals and is associated with a second pool of the plurality of storage pools;
wherein the storage control device is adapted to receive a first write request directed to the first logical unit, and in
response to receiving the first write request, is adapted to allocate, if necessary, a first storage area in the first pool
of the plurality of storage pools to the first logical unit identified by the first write request to be able to store data
of the first write request, and
wherein the storage control device is adapted to receive a second write request directed to the second logical unit, and in
response to receiving the second write request, is adapted to allocate, if necessary, a second storage area in the second
pool of the plurality of storage pools to the second logical unit identified by the second write request to be able to store
data of the second write request.
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