Disk array apparatus, method for exchanging firmware, program for exchanging firmware and storage medium for storing program thereof
US8051415B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2009 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Jan 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/65
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.