CN105955898A - SAS hard disk and NVMe hard disk compatible hard disk backplane - Google Patents

SAS hard disk and NVMe hard disk compatible hard disk backplane Download PDF

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Publication number
CN105955898A
CN105955898A CN201610351748.5A CN201610351748A CN105955898A CN 105955898 A CN105955898 A CN 105955898A CN 201610351748 A CN201610351748 A CN 201610351748A CN 105955898 A CN105955898 A CN 105955898A
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hard disk
nvme
sas
compatible
cpld
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CN201610351748.5A
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刘栋
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Inspur Electronic Information Industry Co Ltd
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Inspur Electronic Information Industry Co Ltd
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Priority to CN201610351748.5A priority Critical patent/CN105955898A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14Handling requests for interconnection or transfer
    • G06F13/16Handling requests for interconnection or transfer for access to memory bus
    • G06F13/1668Details of memory controller
    • G06F13/1694Configuration of memory controller to different memory types
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3003Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3037Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a memory, e.g. virtual memory, cache
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/32Monitoring with visual or acoustical indication of the functioning of the machine
    • G06F11/324Display of status information
    • G06F11/325Display of status information by lamps or LED's
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/16Memory access
    • G06F2213/1602Memory access type

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Debugging And Monitoring (AREA)

Abstract

The invention discloses an SAS hard disk and NVMe hard disk compatible hard disk backplane, and relates to the field of server hard disk backplanes. The integral structure of the hard disk backplane is a PCB board card on which a plurality of hard disk connectors and a CPLD are arranged, the hard disk connectors are SAS hard disk and NVMe hard disk compatible connectors, and are connected to the CPLD; and the CPLD can be used for automatically recognizing the types of connected hard disks, and is in communication with a BMC management module on a server mainboard through an I2C bus. According to the SAS hard disk and NVMe hard disk compatible hard disk backplane, an SAS hard disk and an NVMe hard disk use a same onboard connector and are compatible, so that the online change of the two hard disks is realized, the operation convenience is improved and the board card development cost is reduced; the management, carried out by the BMC management module, on the hard disk operation states and health conditions is realized; and by using different combinations of LED lamps, the current hard disk states are shown, so that convenience and visualization are provided.

Description

A kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk
Technical field
The present invention relates to server hardboard Backplane area, a kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk.
Background technology
SAS (Serial Attached SCSI) hard disk i.e. Serial Attached SCSI (SAS) hard disk, compared with SATA hard disc, SAS hard disk can significantly improve equipment storage usefulness, the availability outstanding due to it and extendibility, have become as the hard disk type being most widely used in server level device at present.NVMe (Non-Volatile Memory Express) hard disk i.e. nonvolatile memory hard disk, is the SSD specification using PCIe passage.Due to PCIe The superelevation transmission speed of x4, the performance of NVMe hard disk has greatly improved compared with SAS hard disk, is the developing direction of future server hard disk.Owing to current NVMe hard disk cost is the highest, apply the most extensive.But being as the maturation of technology, NVMe hard disk becomes the mainstream configuration of server hard disc at last.
In server architecture, hard disk backboard Main Function is: connects hard disk, resolve disk state information, transmission disk state information to mainboard BMC.Hard disk backboard in the market normally only supports SAS hard disk, it is impossible to support NVMe hard disk, the most just limits the extensive application of NVMe hard disk.Therefore, the compatible SAS hard disk of exploitation has the biggest market use value with the hard disk backboard of NVMe hard disk.
Summary of the invention
The present invention is directed to demand and the weak point of current technology development, it is provided that a kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk.
A kind of compatible SAS hard disk of the present invention and the hard disk backboard of NVMe hard disk, the technical scheme solving the employing of above-mentioned technical problem is as follows: described a kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk, its overall structure is a pcb board card, some hard disk connectors and a CPLD it is provided with on this pcb board card, wherein, described hard disk connector is the adapter of compatible SAS and NVMe hard disk, and all hard disk connectors are connected to described CPLD, described CPLD can identify the hard disk type of connection automatically;Further, described CPLD is connected communication by I2C bus with BMC management module on server master board.
Preferably, described hard disk backboard being provided with some LED, all LED are connected communication with described CPLD, be can indicate that the duty accessing hard disk by the LED on this hard disk backboard.
Preferably, described hard disk backboard is provided with 8 hard disk connectors, it would be preferable to support 8 NVMe hard disks.
Preferably, described CPLD arranging an I2C Switch, all hard disk connectors are connected to described I2C Switch, the most described I2C Switch and described BMC management module and are connected communication.
Preferably, described CPLD also setting up an I2C expander chip, I2C signal can be converted into GPIO signal, described I2C by described I2C expander chip Expander chip is connected communication with described BMC management module, is connected with described LED simultaneously, I2C expander chip resolves the state of each hard disk and demonstrated the duty of hard disk by corresponding LED.
With the hard disk backboard of NVMe hard disk, a kind of compatible SAS hard disk of the present invention compared with prior art has the beneficial effect that the present invention passes through NVMe hard disk and uses same onboard connector with SAS hard disk, can compatible SAS hard disk and NVMe hard disk, realize the online replacing of two kinds of hard disks, improve the convenience of operation;Can realize under BMC management module hard disk running status, the management of health status;LED various combination is used to represent present hard discs state, convenient directly perceived;
Use this hard disk backboard both can meet current most of user and use the demand of SAS hard disk, smooth upgrade can be realized when customer upgrade in future NVMe hard disk again;Without again developing hard disk backboard, the most directly change hard disk;Can significantly extend hard disk backboard life cycle, the time cost of business equipment upgrading, Financial cost can be greatly reduced.
Figure of description
Accompanying drawing 1 is the schematic diagram of described compatible SAS hard disk and the hard disk backboard of NVMe hard disk;
Accompanying drawing 2 is the operating diagram of described hard disk backboard connecting SAS hard disk;
Accompanying drawing 3 is the operating diagram that described hard disk backboard connects NVMe hard disk.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, the hard disk backboard of a kind of compatible SAS hard disk of the present invention with NVMe hard disk is further described.
The present invention proposes the hard disk backboard of a kind of compatible SAS hard disk and NVMe hard disk, backboard designs corresponding circuit, automatically identify the hard disk type connected, resolve the key technologies such as GPIO realize SAS hard disk and the compatibility of NVMe hard disk by I2C SWITCH, I2C Expander, CPLD;And it is possible to by the duty of the LED instruction hard disk on backboard, and by I2C interface to mainboard management module transmission disk state information.In this hard disk backboard, NVMe hard disk and SAS hard disk use same onboard connector, can compatible SAS hard disk and NVMe hard disk, it is achieved the online replacing of two kinds of hard disks, improve the convenience of operation.
Embodiment:
The present embodiment proposes the hard disk backboard of a kind of compatible SAS hard disk and NVMe hard disk, as shown in Figure 1, its overall structure is a pcb board card, some hard disk connectors and a CPLD it is provided with on this pcb board card, wherein, described hard disk connector is the adapter of compatible SAS and NVMe hard disk, and all hard disk connectors are connected to described CPLD, described CPLD can identify the hard disk type of connection automatically;Further, described CPLD is connected communication by I2C bus with BMC management module on server master board.The present embodiment merges SAS hard disk and two kinds of hard disk backboard functions of NVMe, supports SAS hard disk and two kinds of hard disk mixed insertions of NVMe hard disk, improves the convenience of operation, reduce development board time and Financial cost.
As shown in Figure 1, in hard disk backboard described in the present embodiment, using the adapter of compatible SAS and NVMe hard disk, according to respective protocol specification, when being not connected to any equipment (SAS hard disk or NVMe hard disk), P4 and P10 of described hard disk connector is high level;When inserting SAS hard disk on hard disk connector, P4 is low level, and P10 is high level;When inserting NVMe hard disk on hard disk connector, P4 is high level, and P10 is low level.Meanwhile, described CPLD can recognize the hard disk type of connection by P4 and P10, and notifies that the BMC of server master board manages module by I2C bus.
Additionally, compatible SAS hard disk described in the present embodiment and the hard disk backboard of NVMe hard disk, being provided with some LED, all LED are connected communication with described CPLD, be can indicate that the duty accessing hard disk by the LED on this hard disk backboard.
Accompanying drawing 2 is the operating diagram of described hard disk backboard connecting SAS hard disk, as shown in Figure 2, when SAS hard disk inserts hard disk connector, SGPIO signal is sent to described CPLD, resolve SGPIO signal by CPLD, read out locate, active, error state of all SAS hard disks;Described CPLD mono-aspect accesses, by the LED instruction on hard disk backboard, the duty that hard disk is current;On the other hand by I2C bus, on notice server master board, BMC management module currently connects the duty of hard disk.
Compatible SAS hard disk described in the present embodiment and the hard disk backboard of NVMe hard disk, be provided with 8 hard disk connectors, it would be preferable to support 8 NVMe hard disks on hard disk backboard;One I2C is set on described CPLD Switch, all hard disk connectors are connected to described I2C Switch, described I2C Switch and are connected communication with the BMC management module of server master board.In addition, an I2C expander chip is also set up on described CPLD, I2C signal can be converted into GPIO signal by described I2C expander chip, the BMC of described I2C expander chip and server master board manages module and is connected communication, while shown the duty of hard disk by LED with described LED communication.
Accompanying drawing 3 is the operating diagram that described hard disk backboard connects NVMe hard disk, and as shown in Figure 3, the duty of NVMe hard disk is transmitted by the I2C signal of hard disk self and managed module to BMC on server master board, BMC management module resolve NVMe hard disk operational state.This hard disk backboard transfers 8 road I2C signals to 1 road I2C signal by I2C Switch to be transmitted to BMC management module again, can significantly save the I2C interface of BMC management module.Further, after BMC management module resolves the duty of each hard disk, it is transferred to this hard disk backboard by an other road I2C line.Described hard disk backboard resolves the state of each hard disk by I2C expander chip, and is demonstrated the duty of hard disk by corresponding LED.
Above-mentioned detailed description of the invention is only the concrete case of the present invention; the scope of patent protection of the present invention includes but not limited to above-mentioned detailed description of the invention; suitably change that it is done by any that meet claims of the present invention and any person of an ordinary skill in the technical field or replace, all should fall into the scope of patent protection of the present invention.

Claims (5)

1. a compatible SAS hard disk and the hard disk backboard of NVMe hard disk, it is characterized in that, its overall structure is a pcb board card, some hard disk connectors and a CPLD it is provided with on this pcb board card, wherein, described hard disk connector is the adapter of compatible SAS and NVMe hard disk, and all hard disk connectors are connected to described CPLD, described CPLD can identify the hard disk type of connection automatically;Further, described CPLD is connected communication by I2C bus with BMC management module on server master board.
A kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk, it is characterized in that, being provided with some LED on described hard disk backboard, all LED are connected communication with described CPLD, be can indicate that the duty accessing hard disk by the LED on this hard disk backboard.
A kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk, it is characterised in that be provided with 8 hard disk connectors on described hard disk backboard, it would be preferable to support 8 NVMe hard disks.
A kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk, it is characterized in that, arranging an I2C Switch on described CPLD, all hard disk connectors are connected to described I2C Switch, the most described I2C Switch and described BMC management module and are connected communication.
A kind of compatible SAS hard disk and the hard disk backboard of NVMe hard disk, it is characterized in that, an I2C expander chip is also set up on described CPLD, I2C signal can be converted into GPIO signal by described I2C expander chip, described I2C expander chip is connected communication with described BMC management module, it is connected with described LED simultaneously, I2C expander chip resolves the state of each hard disk and demonstrated the duty of hard disk by corresponding LED.
CN201610351748.5A 2016-05-25 2016-05-25 SAS hard disk and NVMe hard disk compatible hard disk backplane Pending CN105955898A (en)

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CN107766275A (en) * 2017-10-23 2018-03-06 郑州云海信息技术有限公司 A kind of hard disk backboard design system and method for supporting multiple interfaces
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TWI612424B (en) * 2016-12-09 2018-01-21 英業達股份有限公司 Switch system
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CN106970866A (en) * 2017-03-13 2017-07-21 郑州云海信息技术有限公司 A kind of disk monitor system and method
CN107066746B (en) * 2017-04-21 2020-09-25 深圳市同泰怡信息技术有限公司 Method for realizing PCA9555 function through CPLD based on I2C interface
CN107070548A (en) * 2017-04-21 2017-08-18 广东浪潮大数据研究有限公司 A kind of device and method for automatically adjusting QSFP+ optical module power grades
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