Mass storage controller with universal track size adaptability

Details Mass storage controller with universal track size adaptability Mass storage controller with universal track size adaptability

1996-06-03

1999-03-23

Amsbury, Wayne

395888, G06F 1300

Patent

active

058871993

ABSTRACT:
A mass storage array, having a plurality of mass storage drives, is flexible and adaptable to receive data blocks of a preselected varying size and, using an initialization process, adapts itself for writing the data blocks to disk drives having a known physical congfiguration. The disk storage system is software initialized to enable it to receive, from a host computer, data blocks having one of a selected number of possible block sizes. The disk storage system then, under software control, reformats the data to the particular configuration and physical block size of the disk drives attached to it. Thus, in one example, data blocks having 504 bytes per block, available from a Unisys mainframe computer, can be formatted and stored in disk drives having a block size of 512 bytes per block in a manner transparent to the user. In other configurations, a software configuration for the same physical storage controller and disk array takes data blocks from a Unisys Series A System having a data block size of 180 bytes per block, and groups them so that eight incoming computer formatted 180 byte blocks are stored in three physical blocks on the disk drive system.

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