公开(公告)号：US20180314666A1

公开(公告)日：2018-11-01

申请号：US15959675

申请日：2018-04-23

Applicant: Hitachi, Ltd.

Inventor： Katsuya TANAKA ,  Kentaro SHIMADA ,  Akira YAMAMOTO ,  Sadahiro SUGIMOTO

IPC: G06F13/42 ,  G06F13/16

CPC classification number: G06F13/4221 ,  G06F13/1668 ,  G06F13/4022 ,  G06F13/404 ,  G06F2213/0026

Abstract: Efficient communication between storage controllers can be performed. A storage system includes one or more backend switches that connect a first processor, a second processor, and one or more storage devices to each other. Each backend switch identifies a destination of a frame by referring to the frame received from the first processor. In a case where the destination of the frame is the second processor, each backend switch translates a first address, included in the frame, for specifying a location on the second memory in an address space of the first processor, into a second address for specifying the location on the second memory in an address space of the second processor, and transfers the frame including the second address to the second storage controller.

公开(公告)号：US20160117281A1

公开(公告)日：2016-04-28

申请号：US14373911

申请日：2013-09-25

Applicant: HITACHI, LTD.

Inventor： Hirotoshi AKAIKE ,  Katsuya TANAKA ,  Makio MIZUNO

IPC: G06F13/40 ,  G06F13/362 ,  G06F13/42

CPC classification number: G06F13/4027 ,  G06F3/06 ,  G06F13/14 ,  G06F13/362 ,  G06F13/4022 ,  G06F13/4282

Abstract: 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.

Abstract translation: 在将PCIe应用于后端网络连接的存储设备中，为了能够分配总线编号并使PCIe交换机之后扩展成可用，需要一次复位所有PCIe交换机。 为了解决这个需要，存储设备的后端网络的PCIe交换机被串联连接，被管理和存储在总线号码管理表中的连续总线数量被分配给后端网络连接，当 扩展PCIe交换机，总线编号从可分配总线数的最小值到PCIe交换机之间的链路和PCIe交换机中的虚拟PCI总线之间的每个升序分配，总线编号按降序分配 从可分配总线编号的最大值到PCIe开关和驱动器之间的链接。