The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2000
Filed:
Sep. 30, 1996
Jackson L Ellis, Fort Collins, CO (US);
Richard M Born, Fort Collins, CO (US);
Matthew C Muresan, Fort Collins, CO (US);
Graeme M Weston-Lewis, Fort Collins, CO (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
A method and apparatus for writing data to a storage device such as a hard disk drive in which two write commands from an initiator are processed as a single command at the storage device. A first request is received from a small computer systems interface (SCSI) bus to write a first set of data to a storage device. The first set of data is transferred to memory for temporary storage prior to transfer to the storage device. Thereafter, a second write request is received to write a second set of data to the storage device in which the write request includes a logical block address. An ending logical block address determined after transferring the first set of data is compared to the logical block address of the second request to determine whether the second set of data can be written to the storage device along with the first set of data as a single write operation based on the comparison of the logical block address of the second request and the ending logical block address. In response to a determination that the first set of data and the second set of data can be written to the disk as a single write operation, the second set of data is written to the memory as a part of the first write request. The second set of data may be automatically transferred to the memory, to be written to the storage device as a second write operation in response to a determination that the first set of data and the second set of data cannot be written as a single write operation.