Storage system and method using interface control devices of different types
AssigneeHitachi, Ltd.
InventorsNaoto Matsunami, Manabu Kitamura, Koji Sonoda, Shizuo Yokohata
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Abstract
A storage has NAS and SAN functions and a high degree of freedom to configure a system to reduce the management and operation cost. The storage includes a plurality of interface slots in which a plurality of interface controllers can be installed, a block I/O interface controller which has SAN functions and which can be installed in the slot, a file I/O interface controller which has NAS functions and which can be installed in the slots, a storage capacity pool including a plurality of disk devices accessible from the interface controllers, and a storage capacity pool controller to control the storage capacity pool.
Claims13
A storage system, comprising:
- a plurality of interface control devices each of which is coupled to a client computer;
- and
- a plurality of disk devices coupled to said plurality of interface control devices;
- wherein storage areas in said plurality of disk devices are divided into a plurality of pools based on characteristic of said storage areas, at least one storage area in one of the pools being assigned to each of said interface control devices, each storage area in said plurality of pools being accessed via the interface control device to which the storage area is assigned;
- wherein one of said interface control devices is a channel adapter board of a second I/O interface and another one of said interface control devices is a channel adapter board of a first I/O interface;
- and
- wherein said at least one storage area includes a just storage area and a second storage area, the first storage area being provided to a first client computer via the channel adapter board of a block I/O interface and the second storage area being provided to a second client computer via the channel adapter board of a first I/O interface.
A storage system, comprising:
- a plurality of interface control devices each of which is coupled to a client computer;
- and
- a plurality of disk devices coupled to said plurality of interface control devices;
- wherein storage areas in said plurality of disk devices are divided into a plurality of pools based on characteristic of said storage areas, at least one storage area in one of the pools being assigned to each of said interface control devices, each storage area in said plurality of pools being accessed via the interface control device to which the storage area is assigned;
- wherein one of said interface control devices is a channel adapter board of a first I/O interface and another one of said interface control devices is a channel adapter board of a second I/O interface;
- and
- wherein one of said plurality of pools comprises a shared storage area, which is assigned to a plurality of the interface control devices.
A storage system, comprising:
- a plurality of ports receiving data from a client computer;
- a first controller transferring data received by said port;
- a memory storing data in accordance with the transferring performed by said first controller;
- a second controller transferring data stored in said memory;
- a plurality of disk drive groups to which data transferred by said second controller is stored and having a plurality of storage regions in a plurality of disk drives;
- a plurality of logical volumes being addresses to which data is sent from said client computer and corresponding to said storage regions;
- and
- a plurality of resource groups each having a first plural kinds of resources among said ports, said first controller, said memory, said disk drive groups, and said logical volumes, said plurality of resource groups being managed as a disk pool using a table for managing at least port numbers, disk drive group numbers and logical volume numbers, and intra-port sharing information for each of said ports.
Dependencies are inferred from the claim text.