Computer system, storage system and management computer for...

Details Computer system, storage system and management computer for... Computer system, storage system and management computer for...

2008-02-04

2011-10-18

Parthasarathy, Pramila (Department: 2493)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C380S277000, C713S167000, C707S635000, C707S652000

Reexamination Certificate

active

08041959

ABSTRACT:
To protect data from corruption due to restoration of an encryption key to a wrong storage system, there is provided a computer system including a first storage system and a second storage system, wherein: the first storage system, upon receiving a request to write first data to a first area in the first storage system, encrypts the first data by using a first key and writes the first data in the first area, and, upon receiving a request to write second data to a third area, encrypts the second data by using a second key and transmits a request to write the encrypted second data in a second area in the second storage system; and the computer system holds the first key, an identifier of the first storage system associated with the first key, the second key, and an identifier of the second storage system associated with the second key.

REFERENCES:
patent: 7213158 (2007-05-01), Bantz et al.
patent: 2007/0168598 (2007-07-01), Yamamoto et al.
patent: 2007/0180239 (2007-08-01), Fujibayashi et al.
patent: 2009/0178110 (2009-07-01), Higuchi
patent: 2005-11277 (2005-01-01), None
patent: 2007-28502 (2007-02-01), None
patent: 2007-148762 (2007-06-01), None

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