Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1997-01-13
1998-06-02
Toplu, Lucien U.
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
360 48, G06F 940
Patent
active
057617040
ABSTRACT:
A data processing apparatus is constructed of a plurality of processors constituting a multiprocessor and couples of dual disk devices. One specific processor among the plurality of processors includes a copy executing section. All the processors are provided with data processing sections for issuing I/O write requests to the disk devices and managing sections for setting exclusive environments in some of the disk devices in accordance with indications of the copy executing sections. The copy executing section, after causing the managing section of each processor to set the exclusive area in a specific area of the disk device, effects the copy processing between the disk devices with respect to this area. When issuing the I/O write request having a high degree of importance for this exclusive area from the data processing section, however, the processing to this I/O write request is immediately executed, and, thereafter, exclusive area resetting relative to this exclusive area is carried out.
REFERENCES:
patent: 4413317 (1983-11-01), Swenson
patent: 4797810 (1989-01-01), McEntee et al.
patent: 5089958 (1992-02-01), Horton et al.
patent: 5155835 (1992-10-01), Belsan
patent: 5210866 (1993-05-01), Milligan et al.
patent: 5278838 (1994-01-01), Ng et al.
patent: 5333303 (1994-07-01), Mohan
patent: 5367669 (1994-11-01), Holland et al.
patent: 5392415 (1995-02-01), Badovinatz et al.
patent: 5421003 (1995-05-01), Escola et al.
Courtenay III St. John
Fujitsu Limited
Toplu Lucien U.
LandOfFree
Apparatus for copying disk does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for copying disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for copying disk will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1474641