Appeal No. 1997-2058
Application No. 08/122,828
BACKGROUND
The appellants’ invention relates to a task management for data accesses to
multiple logical partitions on physical disk drives in computer systems. The methodology
involves concurrently executing threads/tasks in accordance with each of the physical disk
task lists to execute all data access tasks in each partition and access the partitions
sequentially until the data access program is completed. An understanding of the invention
can be derived from a reading of exemplary claim 1, which is reproduced below.
1. A method of optimizing data access in a computer system wherein
said computer system includes multiple physical disks with each physical
disk having an access controller, at least one of the physical disks includes a
plurality of logical partitions, and a data access program for performing data
access tasks on a master task list, each data access task identifying a
partition on which the access task operates, said program having a plurality
of program threads for concurrently accessing data located in multiple
partitions, said method comprising the steps of:
mapping according to physical disks the logical partitions identified
by data access tasks to be performed by the data access program;
dividing out data access tasks on the master task list by partition and
physical disk into a task list for each physical disk according to the partition
identified by each data access task;
initiating a thread to operate on each physical disk to be accessed as
a part of the data access program; and
concurrently executing said threads in accordance with each of the
physical disk task lists to execute all data access tasks in each partition and
access the partitions sequentially until said data access program is
completed.
2
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007