Remote copy system for setting request interconnect bit in each

Details Remote copy system for setting request interconnect bit in each Remote copy system for setting request interconnect bit in each

1995-02-28

1997-10-21

Meky, Moustafa M.

395858, 39518204, G06F 1216

Patent

active

056805802

ABSTRACT:
A remote copy system incorporates dynamically modifiable ports on the storage controllers such that those ports can operate either as a control unit link-level facility or as a channel link-level facility. When configured as a channel link-level facility, a primary storage controller can appear as a host processor to a secondary storage controller. The primary storage controller can thereafter initiate multiple request connects (RQC) concurrently for servicing a single I/O request. In this manner, a first available path can be selected and system throughput thus improved since RQCs so not need to be sent serially from path to path looking for an available path.

REFERENCES:
patent: 4207609 (1980-06-01), Luiz et al.
patent: 5155845 (1992-10-01), Beal et al.
patent: 5212784 (1993-05-01), Sparks
patent: 5440727 (1995-08-01), Bhide et al.
patent: 5446871 (1995-08-01), Shomler et al.
patent: 5448718 (1995-09-01), Cohn et al.
patent: 5459857 (1995-10-01), Ludlam et al.
patent: 5504861 (1996-04-01), Crockett et al.
patent: 5544347 (1996-08-01), Yanai et al.
patent: 5555371 (1996-09-01), Duyanovich et al.
patent: 5577222 (1996-11-01), Micka et al.
patent: 5592618 (1997-01-01), Micka et al.
patent: 5615329 (1997-03-01), Kern et al.
"Escon I/O Interface", SA22-7202-01 Enterprise Systems Architecture/390.
"IBM Finally Makes It Into the Mainframe Disk Array Age with Launch of its Ramac Systems", Computergram International, CGI 06220011, Jun. 22, 1994.
"Channel Extenders", Data Communications, Sep. 21, 1993, p. 75, vol. 22, No. 13.
"NSC opens channel extenders to DASD", Network World, p. 23, Sep. 2, 1991.
"New ways to distribute mainframe storage", by Snell, Need, Datamation, V37, N24, p. 67(3), Dec. 1, 1991.

Affiliated with

Also associated with

Rating

Remote copy system for setting request interconnect bit in each does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remote copy system for setting request interconnect bit in each , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote copy system for setting request interconnect bit in each will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1014912