Data processing: software development – installation – and managem – Software upgrading or updating
Reexamination Certificate
2009-02-18
2011-11-01
Zhen, Wei (Department: 2191)
Data processing: software development, installation, and managem
Software upgrading or updating
C710S048000, C710S260000, C711S202000, C711S205000
Reexamination Certificate
active
08051415
ABSTRACT:
Disclosed is a disk array apparatus which includes disk apparatuses and which reads and writes data of the disk apparatus based on an I/O instruction issued by a host computer, includes: a CPU which carries out a first firmware; a memory which stores the first firmware in a first storage area of physical address space; and a TLB which belongs to the CPU and makes the first storage area of the physical address space of the memory associated with a first logical area of logical address space, wherein in case that the CPU receives a second firmware and an instruction to exchange firmware, the CPU stores the second firmware in a second storage area of the physical address space of the memory, and updates the TLB to make the second storage area associated with the first logical area. A method and program for exchanging firmware are also disclosed.
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Chen Qing
NEC Corporation
Zhen Wei
LandOfFree
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