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Method of creating a storage area & storage device
| Details |
Inventors: Matsunami, Naoto; Mimatsu, Yasuyuki; Mizuno, Yoichi; Muraoka, Kenji; Oeda, Takashi;
Assignee: Hitachi, Ltd. (Tokyo, JP)
Primary Examiner: Kim; Matthew
Assistant Examiner: Choi; Woo H.
Attorney, Agent or Firm: Townsend and Townsend and Crew LLP
An administrator is required to prepare in advance LU as a pool area when a user storage area is set to a storage. LU configuration is generally cumbersome and it is not easy for a general user to configure it. A pool manager 1 and a storage 1 setting utility in a management console 1 communicate with a program in a storage 1. The storage 1 sets a pool area having a designated capacity. In response to a volume forming request from the management console 1, the storage 1 sets a designated volume by setting the designated volume as a used capacity of the set pool area. When a volume is formed, a policy is designated to select a storage area having a corresponding attribute from the pool area. |
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DETAILED DESCRIPTION According to conventional techniques, it is necessary for a user to prepare beforehand LUN for the pool area.
Generally, it is necessary for a user to configure LUN corresponding to a desired pool size by using storage configuration setting utility software (hereinafter called a utility) presented by a storage maker.
In order for a user to configure LUN for a disk array storage, a number of works are required.
Such works include a work of loading disk drives necessary for the disk array, a setting work for a RAID (Redundant Arrays of Inexpensive Disks) level, a formatting work for generating guarantee codes called parities for disk drive failures, a LUN setting work, a work of selecting a storage controller for controlling LUN, a work of establishing an access bus from a host to LUN, and other works.
As above, a LUN configuration method is generally cumbersome.
Furthermore, the LUN configuration method is different at each company or at each product type.
Therefore, in the environment having a plurality of different storages, it is difficult for a user to configure LUN unless the user is an expert of configuration works, and the operation facilitation which is essential for a storage pool cannot be achieved satisfactorily.
Even if a user is an expert of configuration works, it is difficult, from a viewpoint different from configuration works, to select an optimum storage from a plurality of storages while the cost, performance and reliability are taken into consideration, and to configure LUN having a proper capacity to be determined from a past use state and a future use state.
Conventional techniques do not consider a hetero environment in which servers operate on different OSes.
According to conventional techniques, an area used by each server is constituted of a partition whose format is dependent upon OS.
Therefore, although a plurality of partitions can be set and managed in the same LU in the single OS environment, it is difficult in a hetero environment for each OS to set and manage a partition in the same LU
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CPUs 
