Limited concurrent host access in a logical volume...

Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique

Reexamination Certificate

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Details

C711S152000, C711S161000, C711S162000, C711S168000, C711S170000, C709S225000, C709S229000

Reexamination Certificate

active

07096333

ABSTRACT:
A method, system, and program product for controlling multi-node access to a disk storage system. In accordance with the method of the present invention, an active access authorization is set for a first node. The active access authorization enables read and write access by the first node to user and meta data within the disk storage system. A passive access authorization is set for a second node. The passive access authorization enables read-only access by the second node to logical volume management meta data within the disk storage system.

REFERENCES:
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patent: 6636984 (2003-10-01), McBrearty et al.
patent: 2002/0156756 (2002-10-01), Stanley et al.
patent: 2003/0182246 (2003-09-01), Johnson et al.
patent: 2003/0212752 (2003-11-01), Thunquest et al.
patent: 2003/0221124 (2003-11-01), Curran et al.
patent: 2003/0236850 (2003-12-01), Kodama
patent: 2004/0167984 (2004-08-01), Herrmann
patent: 2004/0236916 (2004-11-01), Berkowitz et al.
Instruction on using UNIX CHMOD, “www.soest.hawaii.edu/chmod.html” pp. 1-2, Oct. 18, 2001.

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