Method for initialization of storage systems
AssigneeHitachi, Ltd.
InventorNaoki Watanabe
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Abstract
A method and apparatus are described for providing initialization in large storage systems as a background function, upon demand, and upon receipt of write requests. The initialization may be carried out under control of the hard disk drive itself, a storage controller, or both systems. The initialization is performed transparently to the host computer making operation of the storage system immediately after it is coupled to the host feasible.
Claims7
A method of preparing storage media in a storage system for data to be written to the storage media, wherein the system is prepared for writing data to the storage media in both of the following two ways:
- initialization of portions of the storage media are performed as a background job in which input/output requests and initialization are executed as background jobs;
- and
- otherwise any un-initialized portions of the storage media to which write requests are directed are initialized prior to writing data in response to write requests that are received by the system for writing the data to the storage media portions.
Dependencies are inferred from the claim text.