CN109800189B - Data transmission device of NVME hard disk - Google Patents
Data transmission device of NVME hard disk Download PDFInfo
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- CN109800189B CN109800189B CN201910011018.4A CN201910011018A CN109800189B CN 109800189 B CN109800189 B CN 109800189B CN 201910011018 A CN201910011018 A CN 201910011018A CN 109800189 B CN109800189 B CN 109800189B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
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Abstract
The invention discloses a data transmission device of NVME hard disk, comprising: the Slimline cable comprises a standard Slimline X8 connector arranged on an NVME hard disk back plate, a customized Slimline X4 connector arranged on a mini-server, and a customized Slimline cable for connecting a customized Slimline X4 connector with a standard Slimline X8 connector; the custom SlimelineX4 connector is a standard SlimelineX4 connector with a sideband type signal pin removed; the custom Slimline cable supports one NVME SSD or two NVME SSDs via a custom Slimline X4 connector. The signal line layout quantity on the miniature server is reduced, the mainboard space is saved, and the basic data transmission function of the NVME hard disk can be realized.
Description
Technical Field
The invention relates to the technical field of cloud computing data centers, in particular to a data transmission device of an NVME hard disk.
Background
With the development and progress of science and technology, the variety of server products is increasing, the functions of servers are increasing, and the design of hardware circuits is becoming more and more complicated, so how to effectively utilize the existing circuit design space and reduce the number of devices is particularly important. The NVME hard disk backplane is usually made into 2 ports on the server, and can be connected with 2pcs NVME hard disks, each 1pcs NVME hard disk occupies 1 PCIE X4 bandwidth, and the 2 port backplane usually adopts 1 Slimline X8 interface, and is averagely distributed to each interface to realize the function of having PCIE X4 bandwidth. The miniature server can only support 1pcs NVME hard disk due to limited space layout, and uses SlimelineX4 to transmit data of the hard disk.
Disclosure of Invention
The invention aims to provide a data transmission device of an NVME hard disk, aiming at a high-density micro server, and aiming at reducing the number of signal cable layouts on a mainboard, the traditional two-port backboard scheme is utilized, the number of signal cable layouts on the micro server is reduced, the space of the mainboard is saved, and the basic data transmission function of the NVME hard disk can be realized.
In order to achieve the purpose, the invention adopts the following technical scheme:
a data transmission device of NVME hard disk realizes data interconnection between NVME hard disk backboard and micro server, including: the Slimline cable comprises a standard Slimline X8 connector arranged on an NVME hard disk back plate, a customized Slimline X4 connector arranged on a mini-server, and a customized Slimline cable for connecting a customized Slimline X4 connector with a standard Slimline X8 connector; the custom SlimelineX4 connector is a standard SlimelineX4 connector with a sideband type signal pin removed; the custom Slimline cable supports one NVME SSD or two NVME SSDs via a custom Slimline X4 connector.
Further, the custom SlimelineX4 connector has only one set of BMC I2C; the P3V3 and STBY of the SlimelineX4 connector are customized to have two pins.
Further, the custom Slimline cable realizes that a Slimline X4-standard Slimline X8 supports an NVME SSD through a custom Slimline X4 connector; or, two Slimline X4-standard Slimline X8 support two NVME SSDs by customizing the Slimline X4 connector.
Further, the pin a1 to pin a9 of the custom slimine X4 connector are sequentially connected with the pin a1 to pin a9 of the standard slimine X8 connector in a one-to-one correspondence; the pin a13 to pin a19 of the custom slimine X4 connector were connected in a one-to-one correspondence with the pin a13 to pin a19 of the standard slimine X8 connector.
Further, the pin B1 to pin B7 of the custom slimine X4 connector are sequentially connected with the pin B1 to pin B7 of the standard slimine X8 connector in a one-to-one correspondence; the pin B13 to the pin B19 of the custom Slimline X4 connector are sequentially connected with the pin B13 to the pin B19 of the standard Slimline X8 connector in a one-to-one correspondence manner; pin B8 of the custom slimine X4 connector connected with pin B9 of the standard slimine X8 connector; pin B9 of the custom slimine X4 connector connected with pin B8 of the standard slimine X8 connector; pin B10 of the custom SlimlineX4 connector was connected with pin B14 of the two-port hard disk; the pins B11 to B13 of the SlimlineX4 connector are connected with the pins A8 to A10 of the two-port hard disk one by one in sequence.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
according to the invention, a customized Slim X4 interface is adopted on the miniature server, and data transmission is carried out between Slim X4 on the miniature server and Slim X8 on the hard disk backboard by a customized Slim cable, so that the signal line Layout number on the miniature server can be reduced, the mainboard space is saved, and the basic data transmission function of an NVME hard disk can be realized.
Drawings
FIG. 1 is a schematic diagram of a standard 2-port hard disk backplane SlimlineX8 interface definition;
FIG. 2 is a first schematic diagram of Slimline x 4-x 8 cable Pin definition according to the present invention;
FIG. 3 is a second schematic diagram of Slimline x 4-x 8 cable Pin definition according to the invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
A data transmission device of NVME hard disk realizes data interconnection between NVME hard disk backboard and micro server, including: the Slimline cable comprises a standard Slimline X8 connector arranged on an NVME hard disk back plate, a customized Slimline X4 connector arranged on a mini-server, and a customized Slimline cable for connecting a customized Slimline X4 connector with a standard Slimline X8 connector; the custom SlimelineX4 connector is a standard SlimelineX4 connector with a sideband type signal pin removed; the custom Slimline cable supports one NVME SSD or two NVME SSDs via a custom Slimline X4 connector.
Since the cable currently used in the industry is a standard Slim X8 connector to 2 standard Slim X4 connector, the solution realizes the function of converting the standard Slim X8 connector to customized 1 Slim X4, the signal lines are redefined for the layout of the main board of the mini-server by removing some unnecessary sideband-like signals (such as Present, IFDET #) of the Slim X4, and the definition of the customized Slim X4 connector Pin on the mini-server is finally shown in the following Table 1:
table 1 slim x4 interface pin definitions
As shown in FIG. 1, the Slimline X4 interface of the mini-server and the Slimline X8 interface of the standard 2-port hard disk backplane are defined and analyzed, so that the Slimline X4 interface of the mini-server and the Slimline X8 of the standard 2-port hard disk backplane can realize functions of data transmission, hard disk management and the like.
1.) Slimline X4 on the microserver and Slimline X8Pin definition function section validation:
(1) PCIE, CLK, PERST, HP I2C, BMC I2C (group 1) related signals pin define coincidence.
(2) P3V3STBY (2Pin) Pin defines coincidence.
2.) the mini-server supports 1 NVME SSD, which is different from the existing 2 NVME backplane signals:
(1) the BMC of the mainboard to the backboard has 2 groups of I2C, one group of I2C is connected to the CPLD and the temperature Sensor of the backboard, and one group of I2C is connected to the NVME SSD; the microserver 2.0Slimlinex4 has only 1 group BMC I2C (B8, B9).
(2) 4 pins from the mainboard to the backboard Slimline 8+ Slimline X4P3V3 STBY; the P3V3STBY on the mini server 2.0Slimlinex4 has 2 pins in total, and no problem exists in power supply.
3.) backplane I2C and NVME SSD I2C functions:
(1) NVME SSD I2C implements the functions: and reading the SSD temperature and participating in fan regulation.
(2) The backplane I2C performs the functions of: hard disk state monitoring (SSD number, Present, LOC, EEROR SSD state), CPLD version reading, online CPLD updating, backboard temperature reading, FRU (not used currently).
Through the analysis, the defined slim server Slim X4 interface can realize the functions of data transmission, hard disk management and the like with a standard 2-port hard disk backplane Slim X8.
The mini-server Slimline x4 interface supports 1 NVME SSD by custom Slimline cable. As shown in fig. 2, the pin a1 to pin a9 of the custom slimine X4 connector are connected in turn one-to-one correspondence with the pin a1 to pin a9 of the standard slimine X8 connector; the pin a13 to pin a19 of the custom slimine X4 connector were connected in a one-to-one correspondence with the pin a13 to pin a19 of the standard slimine X8 connector.
Through customizing the cable, with Slimlinex4 commentaries on classics Slimlinex8 cable, the signal interconnection is realized to the use of current 2 mouthfuls of NVME backplanes of collocation, and the collocation is used to current 2 mouthfuls of NVME backplanes. As shown in fig. 3, the pin B1 to pin B7 of the custom slimine X4 connector are connected in turn one-to-one correspondence with the pin B1 to pin B7 of the standard slimine X8 connector; the pin B13 to the pin B19 of the custom Slimline X4 connector are sequentially connected with the pin B13 to the pin B19 of the standard Slimline X8 connector in a one-to-one correspondence manner; pin B8 of the custom slimine X4 connector connected with pin B9 of the standard slimine X8 connector; pin B9 of the custom slimine X4 connector connected with pin B8 of the standard slimine X8 connector; pin B10 of the custom SlimlineX4 connector was connected with pin B14 of the two-port hard disk; the pins B11 to B13 of the SlimlineX4 connector are connected with the pins A8 to A10 of the two-port hard disk one by one in sequence.
Wherein, P0 is the definition of Slimline X4 interface Pin of the micro server, P1 is the definition of Slimline X8 interface Pin of the 2-port hard disk backplane, and P2 is the definition of A area Pin of the 2-port hard disk backplane interface.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (3)
1. A data transmission device of NVME hard disk realizes data interconnection between NVME hard disk backboard and micro server, which is characterized in that it includes: the Slimline cable comprises a standard Slimline X8 connector arranged on an NVME hard disk back plate, a customized Slimline X4 connector arranged on a mini-server, and a customized Slimline cable for connecting a customized Slimline X4 connector with a standard Slimline X8 connector; the custom SlimelineX4 connector is a standard SlimelineX4 connector with a sideband type signal pin removed; the customized Slimline cable supports one NVME SSD or two NVME SSDs through a customized Slimline X4 connector;
the sideband signals are Present and IFDET # signals;
the custom SlimelineX4 connector has only one group of BMC I2C; customizing P3V3 and STBY pins of a SlimelineX4 connector;
the custom Slimline cable realizes that a Slimline X4-standard Slimline X8 supports an NVME SSD through a custom Slimline X4 connector; or, two Slimline X4-standard Slimline X8 support two NVME SSDs by customizing the Slimline X4 connector.
2. The data transmission device of the NVME hard disk as claimed in claim 1, wherein the pins A1 to A9 of the custom Slimline X4 connector are sequentially connected with the pins A1 to A9 of a standard Slimline X8 connector in a one-to-one correspondence; the pin a13 to pin a19 of the custom slimine X4 connector were connected in a one-to-one correspondence with the pin a13 to pin a19 of the standard slimine X8 connector.
3. The data transmission device of the NVME hard disk as claimed in claim 1, wherein the pins B1 to B7 of the custom Slimline X4 connector are sequentially connected with the pins B1 to B7 of a standard Slimline X8 connector in a one-to-one correspondence; the pin B13 to the pin B19 of the custom Slimline X4 connector are sequentially connected with the pin B13 to the pin B19 of the standard Slimline X8 connector in a one-to-one correspondence manner; pin B8 of the custom slimine X4 connector connected with pin B9 of the standard slimine X8 connector; pin B9 of the custom slimine X4 connector connected with pin B8 of the standard slimine X8 connector; pin B10 of the custom SlimlineX4 connector was connected with pin B14 of the two-port hard disk; the pins B11 to B13 of the SlimlineX4 connector are connected with the pins A8 to A10 of the two-port hard disk one by one in sequence.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063158A (en) * | 2010-12-10 | 2011-05-18 | 曙光信息产业(北京)有限公司 | IO expansion module of blade server |
| CN107491148A (en) * | 2017-09-15 | 2017-12-19 | 郑州云海信息技术有限公司 | A kind of server hard disc attachment structure |
| CN107992297A (en) * | 2017-12-19 | 2018-05-04 | 郑州云海信息技术有限公司 | A kind of SPI controller for S3C2440 drives implementation method |
| CN108170620A (en) * | 2018-01-05 | 2018-06-15 | 郑州云海信息技术有限公司 | A kind of server hard disk extension system and method, hard disk signal enhancing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170357610A1 (en) * | 2016-06-14 | 2017-12-14 | Kazan Networks Corporation | Split nvme ssd implementation using nvme over fabrics protocol |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063158A (en) * | 2010-12-10 | 2011-05-18 | 曙光信息产业(北京)有限公司 | IO expansion module of blade server |
| CN107491148A (en) * | 2017-09-15 | 2017-12-19 | 郑州云海信息技术有限公司 | A kind of server hard disc attachment structure |
| CN107992297A (en) * | 2017-12-19 | 2018-05-04 | 郑州云海信息技术有限公司 | A kind of SPI controller for S3C2440 drives implementation method |
| CN108170620A (en) * | 2018-01-05 | 2018-06-15 | 郑州云海信息技术有限公司 | A kind of server hard disk extension system and method, hard disk signal enhancing method |
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