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公开(公告)号：DE10027359A1
公开(公告)日：2001-01-18
申请号：DE10027359
申请日：2000-06-02
Applicant: IBM
Inventor： KIBASHI AKIRA , ASANO HIDEO , COLEGROVE DANIEL J
Abstract: Forecasting or estimating in advance the re-start time of a hard-disc drive system while the latter is in a waiting mode, where it is necessary to return the hard-disc drive from a standby mode into an active or useable mode, requires instructing the host system during the period preceding the restart, so that the host can terminate a task being finished off during this period, before the restart of the drive so that termination can be optimised by all the tasks being carried out in the total system, thus allowing considerable speeding up of data processing.
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公开(公告)号：CA2145924A1
公开(公告)日：1995-10-08
申请号：CA2145924
申请日：1995-03-30
Applicant: IBM
Inventor： COLEGROVE DANIEL J
Abstract: This disclosure relates to translating cylinder-head-sector ( CHS)addressing of digital data written to or read from a DASD so as to accommodate DASD storage capacities in excess of the approximately five hundred twenty eight megabyte capacity limit imposed by Interrupt 13 design in an Industry Standard Architecture personal computer system. A CHS (cylinder-head-sector) address in a first frame of reference which meets the restraints of Interrupt 13 design in the ISA BIOS is translated to a CHS address in a second frame of reference which meets the physical characteristics of a DASD which is otherwise outside the restraints of Interrupt 13 design in the ISA BIOS. Determination of a conversion factor for translation of CHS addresses between the first and second frames of reference for cylinder and head numbers, conversion, and translation can occur as a function of the system BIOS in cooperation with the system CPU; as a function of a controller card BIOS in cooperation with a controller microprocessor; or as a function of an IDE BIOS in cooperation with an IDE microprocessor.
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