CN206133410U - A JBOD board based on general storage system - Google Patents

Abstract

The utility model discloses a JBOD board based on a general storage system, which relates to computer components and is installed and used in the general storage system. The JBOD board is provided with several high-speed connectors for connecting hard disk backplanes. The JBOD board passes through the hard disk backplane. The board is directly interconnected with the HDD signal to expand the system storage space; the JBOD board is also equipped with a 1X2 e-MiniSAS HD interface, one of which is connected to the upstream SAS controller, and the other is connected to the same next-level JBOD board for System cascade storage expansion; and the JBOD board is equipped with a SAS3.0 Re-driver chip to enhance the JBOD board SAS3.0 signal drive capability; thus the JBOD board realizes JBOD cascade expansion and SAS3.0 signal long distance transmission.

Description

A JBOD board based on general storage system

technical field

The utility model relates to computer components, in particular to a JBOD board based on a general storage system.

Background technique

A storage system refers to a computer system consisting of various storage devices for storing programs and data, control components, and devices (hardware) and algorithms (software) for managing information scheduling. The main memory of the computer cannot meet the requirements of fast access speed, large storage capacity and low cost at the same time. In the computer, there must be a multi-level memory with a speed from slow to fast and a capacity from large to small. With the optimal control scheduling algorithm and Reasonable cost constitutes a storage system with acceptable performance. The performance of the storage system plays an increasingly important role in the computer.

JBOD (Just a Bunch Of Disks) is a storage device with multiple disk drives installed on a backplane in the storage field. Unlike RAID arrays, JBODs have no front-end logic to manage the distribution of data across the disks. Instead, each disk is individually addressed as a separate storage resource, either based on part of the host software, or an adapter card in the RAID group. JBOD is used to refer to computer hard drives that have not been configured according to the RAID (Redundant Array of Independent Disks) system to increase fault tolerance and improve data access performance. Using separate disks for JBOD does not provide any benefits, nor does it provide any of the fault tolerance or better performance benefits that RAID can provide.

Utility model content

The utility model provides a JBOD board based on a general storage system aiming at the needs and deficiencies of the current technical development.

A JBOD board based on a general storage system described in the utility model adopts the following technical solution to solve the above technical problems: the JBOD board based on a general storage system is installed and applied in a general storage system, and its overall structure is a PCB board card, integrated with a PM8054 chip, a CPLD chip, several high-speed connectors, SAS3.0 Re-driver chip, 1X2 e-MiniSAS HD interface; wherein, the PM8054 chip and the CPLD chip, each high-speed The connector, SAS3.0 Re-driver chip, and 1X2 e-MiniSAS HD interface are all connected to communicate; the PM8054 chip is used for storage expansion and system cascading; the CPLD chip is used to control the power-on sequence of the JBOD board and related logic control ; The high-speed connector is used to connect the hard disk backplane to expand the system storage space; one of the 1X2 e-MiniSAS HD interfaces is connected to the SAS controller in the system, and the other interface is connected to the same JBOD board of the next level for system level Connected storage expansion; the SAS3.0 Re-driver chip is used to enhance the SAS3.0 signal driving capability of the JBOD board.

Preferably, five Xcede HD series high-speed connectors are arranged on the JBOD board.

Preferably, two SAS3.0 Re-driver chips are arranged on the JBOD board.

Preferably, 3 Xcede HD series power connectors, memory and hardware monitoring chips are also arranged on the JBOD board, and the power connector, memory, and hardware monitoring chips are all connected and communicated with the PM8054 chip; It is respectively connected and communicated with the CPLD chip and the high-speed connector; the power connector is plugged into the hard disk backplane to obtain power for the JBOD board.

Preferably, the memory includes PROM, SRAM static random access memory, NVSRAM.

Preferably, the hard disk monitoring chip adopts NCT7904D.

Preferably, a clock chip, UART Debug Header, and FRU field replaceable unit are also arranged on the JBOD board, wherein the UART Debug Header is used for UART debugging, and the clock chip, UART Debug Header, and FRU are all connected to the PM8054 Chip connection communication.

Preferably, two Xcede HD series guides are provided on the JBOD board to serve as guides when interconnecting with the hard disk backplane.

Compared with the prior art, the JBOD board based on the general storage system described in the utility model has the beneficial effect that: in the general storage system, one end of the JBOD board described in the utility model is directly interconnected with the HDD through the hard disk backplane, forming The storage space of its own system; the other end realizes system cascade storage expansion through the 1X2 e-MiniSAS HD interface; and enhances the SAS3.0 signal drive capability of the JBOD board through the SAS3.0 Re-driver chip, thereby realizing JBOD cascade expansion and SAS3 .0 signal long-distance transmission; moreover, the utility model is novel in conception, easy to use, strong in storage expansion function, and has good market promotion value.

Description of drawings

Accompanying drawing 1 is the structural representation of described JBOD plate.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the JBOD board based on the universal storage system described in the utility model will be further described in detail below in conjunction with specific embodiments.

Aiming at the general storage system, the utility model proposes a JBOD board based on the general storage system, installed and used in the general storage system, the JBOD board is provided with several high-speed connectors for connecting the hard disk backplane, and the JBOD board passes through the hard disk The backplane is directly interconnected with the HDD signal to expand the system storage space; the JBOD board is also equipped with a 1X2 e-MiniSASHD interface, one of which is connected to the upstream SAS controller, and the other is connected to the same next-level JBOD board for System cascade storage expansion; and the JBOD board is equipped with a SAS3.0 Re-driver chip to enhance the JBOD board SAS3.0 signal drive capability; thus the JBOD board realizes JBOD cascade expansion and SAS3.0 signal long distance transmission.

Example:

In this embodiment, a JBOD board based on a general-purpose storage system has an overall structure as shown in Figure 1. The JBOD board is a PCB card installed and applied in a general-purpose storage system, and a SAS3.0 Expander is integrated on it. 36 Ports (PM8054) chip, a CPLD chip, several high-speed connectors, SAS3.0 Re-driver chip, 1X2 e-MiniSASHD interface; wherein, the PM8054 chip and the CPLD chip, each high-speed connector, SAS3.0 The Re-driver chip and the 1X2 e-MiniSAS HD interface are all connected for communication; the PM8054 chip is used for storage expansion and system cascading; the CPLD chip is used for controlling the power-on sequence of the JBOD board and related logic control; the high-speed connector is used for It is used to connect the hard disk backplane to expand the system storage space; one port of the 1X2 e-MiniSAS HD interface is connected to the upstream SAS controller, and the other port is connected to the same JBOD board of the next level for system cascade storage expansion; the SAS3 The .0 Re-driver chip is used to enhance the SAS3.0 signal driving capability of the JBOD board.

In the JBOD board described in this embodiment, as shown in Figure 1, five Xcede HD series high-speed connectors (CN0, CN1, CN2, CN3, CN4) are provided for connecting the hard disk backplane, and the hard disk backplane It is equipped with a mechanical hard disk HDD; the 1X2 e-MiniSAS HD interface supports 2 sets of X4 Lane SAS3.0 signal expansion, and each e-MiniSAS HD cable supports a maximum rate of 12Gb/s. In a general storage system, one end of the JBOD board is directly interconnected with the 12GT/s SAS3.0 signal between the hard disk backplane and the HDD to expand the storage space of the system itself; the other end of the JBOD board is connected through the e-MiniSAS HD cable Connect to the 1X2 e-MiniSAS HD interface on the JBOD board, one of which is connected to the e-MiniSAS HD interface of the upstream SAS controller, and the other interface is connected to the e-MiniSAS HD interface of the same JBOD board at the next level for system cascading storage expansion.

In the JBOD board described in this embodiment, as shown in FIG. 1 , there are two SAS3.0 Re-driver chips, which can support the driving of X8 Lane SAS3.0 RX terminal signals. At the same time, the JBOD board is also equipped with three Xcede HD series power connectors (PWR0, PWR1, PWR2), memory and hardware monitoring chip, and the power connector, memory, and hardware monitoring chip are all connected and communicated with the PM8054 chip The hardware monitoring chip is connected and communicated with the CPLD chip and the high-speed connector respectively; the power connector can be plugged on the hard disk backplane, and is powered by the hard disk backplane to supply power for the JBOD board; the memory includes PROM (programmable read-only memory), SRAM static random access memory, NVSRAM (non-volatile SRAM); the hard disk monitoring chip uses NCT7904D.

In addition, the JBOD board described in this embodiment is also provided with a clock chip (Clock), a UART Debug Header, and a FRU (Field Replace Unit) field replaceable unit, wherein the UART Debug Header is used for UART debugging, and the UART (Universal Asynchronous Receiver /Transmitter) is an asynchronous transceiver; and the clock chip, UART Debug Header, and FRU are all connected to the PM8054 chip for communication.

In order to facilitate the installation of the hard disk backplane, two Xcede HD series guides are provided on the JBOD board to play a guiding role when interconnecting with the hard disk backplane. By adopting the utility model, the JBOD board design based on the general storage system can be quickly and efficiently realized, and the JBOD cascading expansion and the long-distance transmission of SAS3.0 signals are realized.

The above-mentioned specific embodiments are only specific cases of the present utility model, and the scope of patent protection of the present utility model includes but not limited to the above-mentioned specific embodiments. Appropriate changes or substitutions made should fall within the patent protection scope of the present utility model.

Claims (8)

1. A JBOD board based on a general storage system, installed and applied in a general storage system, is characterized in that its overall structure is a PCB board on which a PM8054 chip, a CPLD chip, some high-speed connectors, SAS3.0 Re-driver chip, 1X2 e-MiniSAS HD interface; wherein, the PM8054 chip is connected and communicated with the CPLD chip, each high-speed connector, SAS3.0 Re-driver chip, and 1X2 e-MiniSAS HD interface; The PM8054 chip is used for storage expansion and system cascading; the CPLD chip is used to control the power-on sequence of the JBOD board and related logic control; the high-speed connector is used to connect the hard disk backplane to expand the system storage space; the 1X2 e- One of the MiniSAS HD interfaces is connected to the SAS controller in the system, and the other interface is connected to the same JBOD board of the next level for system cascade storage expansion; the SAS3.0 Re-driver chip is used to enhance the SAS3.0 signal of the JBOD board Drive capability. 2. a kind of JBOD board based on universal storage system according to claim 1, is characterized in that, described JBOD board is provided with 5 Xcede HD series high-speed connectors. 3. a kind of JBOD board based on universal storage system according to claim 2, is characterized in that, described JBOD board is provided with two SAS3.0 Re-driver chips. 4. according to any one of claims 1 to 3, a JBOD board based on a general storage system, wherein the JBOD board is also provided with 3 Xcede HD series power connectors, memory and hardware monitoring chips, the power supply Connector, memory, and hardware monitoring chip are all connected and communicated with the PM8054 chip; the hardware monitoring chip is connected and communicated with the CPLD chip and the high-speed connector respectively; board power supply. 5. a kind of JBOD board based on universal memory system according to claim 4, is characterized in that, described storer comprises PROM, SRAM SRAM, NVSRAM. 6. A kind of JBOD board based on general storage system according to claim 5, it is characterized in that, described hard disk monitoring chip adopts NCT7904D. 7. a kind of JBOD board based on general storage system according to claim 6, it is characterized in that, also be provided with clock chip, UART Debug Header, FRU field replaceable unit on the described JBOD board, wherein, UART Debug Header is used for UART debugging, and the clock chip, UART Debug Header, and FRU are all connected and communicated with the PM8054 chip. 8. A JBOD board based on a general-purpose storage system according to claim 7, wherein two Xcede HD series guides are arranged on the JBOD board to play a guiding role when interconnecting with the hard disk backplane.