Electrical computers and digital data processing systems: input/ – Access locking
Patent
1997-11-04
2000-02-29
Lee, Thomas C.
Electrical computers and digital data processing systems: input/
Access locking
711152, 714 5, 714 7, 714 15, G06F 1314
Patent
active
060322179
ABSTRACT:
The system enables on-line container reconfiguration with minimal interference to the on-line processing by blocking all incoming I/O requests into the container drivers. The drivers queue the incoming I/O requests, continue to process all the preexisting I/O requests and signal the system upon completion. Upon receiving signals from all the container drivers with preexisting I/O requests, the system reconfigures the container tables as requested in the reconfiguration request. When the reconfiguration is complete, the system unblocks the blocked I/O requests and processes them and subsequent requests in accordance with the new configuration. By temporarily blocking the I/O requests and dynamically reconfiguring the container tables while the file system is still processing other I/O requests, the system performs on-line container reconfigurations with minimal interference with other on-line processing.
REFERENCES:
patent: 5390187 (1995-02-01), Stallmo
patent: 5515499 (1996-05-01), Allen et al.
patent: 5574851 (1996-11-01), Rathunde
patent: 5623670 (1997-04-01), Bohannon et al.
patent: 5809224 (1998-09-01), Schultz et al.
patent: 5893160 (1999-04-01), Loewenstein et al.
Adaptec, Inc.
Elamin Abdelmoniem
Lee Thomas C.
LandOfFree
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