Electrical computers and digital processing systems: memory – Address formation – Address mapping
Reexamination Certificate
2008-01-08
2009-02-03
Lane, Jack A (Department: 2185)
Electrical computers and digital processing systems: memory
Address formation
Address mapping
C711S115000, C711S203000
Reexamination Certificate
active
07487328
ABSTRACT:
A storage apparatus includes a storage unit and a controller, wherein control of inputting/outputting data from/to a device provided in said storage unit is executed in accordance with a request received by said storage apparatus. An actual device of the storage apparatus corresponds to a virtual device which is external to said storage apparatus. The controller operates to perform a process for mapping an actual device address corresponding to a virtual device address, in accordance with a specification of the actual device to be mounted or unmounted to correspond to the virtual device, and storing and retaining mapping information obtained from the mapping in a first table. The controller also performs data input/output process for receiving, an access request for data input/output in which said virtual device address is specified, obtaining the actual device address mapped to said specified virtual device address in said first table, and accessing the actual device by said obtained actual device address.
REFERENCES:
patent: 5546557 (1996-08-01), Allen et al.
patent: 6105103 (2000-08-01), Courtright, II et al.
patent: 6519678 (2003-02-01), Basham et al.
patent: 6622177 (2003-09-01), Eilert et al.
patent: 6834324 (2004-12-01), Wood
patent: 7020758 (2006-03-01), Fisk
patent: 7158973 (2007-01-01), Mandal et al.
patent: 2002/0161971 (2002-10-01), Dimitri et al.
patent: 2004/0054850 (2004-03-01), Fisk
patent: 2004/0133575 (2004-07-01), Farmer et al.
patent: 2004/0172577 (2004-09-01), Tan et al.
Toigo Partners International LLC, “Introducing Time Addressable Storage: A Common-Sense Approach To Data Protection”, http://www.revivio.com, May 28, 2003, XP002339430, p 2, lines 10-17, p. 8 last paragraph, p. 11, last paragraph.
Asaka Yoshihiro
Maeda Masami
Sakaki Hidetoshi
Tsukada Masaru
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Lane Jack A
LandOfFree
Storage apparatus having virtual-to-actual device addressing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Storage apparatus having virtual-to-actual device addressing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Storage apparatus having virtual-to-actual device addressing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4057501