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INFORMATION SYSTEM CAPABLE OF EXPANDING DRIVE AND BUS NUMBER ALLOCATION METHOD OF THE INFORMATION SYSTEM
INFORMATION SYSTEM CAPABLE OF EXPANDING DRIVE AND BUS NUMBER ALLOCATION METHOD OF THE INFORMATION SYSTEM
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机译:能够扩展信息系统的驱动系统和总线号分配方法的信息系统
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摘要
In a storage device applying PCIe to a back-end network connection, in order to be capable of allocating bus numbers and making a PCIe switch expanded afterwards usable, it is necessary to once reset all PCIe switches. To dissolve this necessity, PCIe switches of the back-end network of the storage device are connected in series, a range of continuous bus numbers that are managed and stored in bus number management table is allocated for the back-end network connection, and when expanding the PCIe switch, the bus numbers are allocated in ascending order from a minimum value of the allocatable bus numbers to each of a link between the PCIe switches and to a virtual PCI bus within the PCIe switch, and the bus numbers are allocated in descending order from a maximum value of the allocatable bus numbers to the link between the PCIe switch and a drive.
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