CN213601200U - SSD data retention and convenient storage device - Google Patents
SSD data retention and convenient storage device Download PDFInfo
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- CN213601200U CN213601200U CN202022728116.0U CN202022728116U CN213601200U CN 213601200 U CN213601200 U CN 213601200U CN 202022728116 U CN202022728116 U CN 202022728116U CN 213601200 U CN213601200 U CN 213601200U
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Abstract
The utility model discloses a SSD data keep and convenient storage device, include: the device comprises a power supply module, a power supply management module, a control module, a USB bridge module and a clock crystal oscillator module; the power supply module supplies power to the SSD data holding and convenient storage device; the power supply module management module is connected with the power supply module and is used for outputting a plurality of groups of different voltages; the control module is connected with the USB bridge module, the USB bridge module is provided with a USB interface and a plurality of SSD device interfaces, the SSD device interfaces are used for connecting SSD devices, the USB interface is used for connecting an RS232 interface of a host, and the control module is used for controlling data transmission between the SSD devices and the host; the clock crystal oscillator module is connected with the control module and used for recording the data storage time of the SSD device.
Description
Technical Field
The utility model relates to a SSD data storage field, in particular to SSD data keep and convenient storage device.
Background
At present, in any storage technology, stored data can not be stored forever, and the storage technology has a retention time. In flash memory, the problem of data retention time is called DataRetention. By the time limit, the data will be in error, and the mark is that the data read from the flash memory cannot be corrected successfully by ECC. The failure of flash ECC error correction is actually that the data error rate is too high, exceeding the error correction capability of the error correction algorithm.
The current method is that when the SSD is connected with a host and powered on, and when the solid state disk is not busy, the whole disk is scanned according to a certain algorithm, and if the number of turning bits of a certain flash memory page exceeds a certain threshold value, data is rewritten to a new place. This has the advantage of avoiding data being left too long, resulting in a number of bit flips that exceeds the error correction capability of the ECC algorithm, thereby reducing ECC uncorrectable errors. On the premise of doing so, the SSD disk must be placed on the motherboard for a long time to be powered on, so there is a disadvantage:
1. the SSD disk must be maintained in a powered state on the motherboard, and if the SSD disk is not in a powered state and is not powered for more than the DataRetention time, the oxide layer ages and charges are trapped through the oxide layer, and the insulator becomes conductive. In this way, charge runs faster from the floating gate. And the more flash memory erase times, the shorter the data retention time. When these conditions occur, the data cannot be read back as the number of data bit flips increases.
2. Only 1-2 SSD disks can be mounted on one main board. The number of the interfaces of the SSD on the normal mainboard is 1-2.
3. The SSD device must be attached to the motherboard, and neither U.2 nor the SSD of the m.2 interface is easily detached.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a SSD data keep and convenient storage device, aim at solving the problem that above-mentioned background art mentioned.
In order to achieve the above object, the utility model provides a SSD data keep and convenient storage device, include: the device comprises a power supply module, a power supply management module, a control module, a USB bridge module and a clock crystal oscillator module;
the power supply module supplies power to the SSD data holding and convenient storage device;
the power supply module management module is connected with the power supply module and is used for outputting a plurality of groups of different voltages;
the control module is connected with the USB bridge module, the USB bridge module is provided with a USB interface and a plurality of SSD device interfaces, the SSD device interfaces are used for connecting SSD devices, the USB interface is used for connecting an RS232 interface of a host, and the control module is used for controlling data transmission between the SSD devices and the host;
the clock crystal oscillator module is connected with the control module and used for recording the data storage time of the SSD device.
Optionally, the USB bridge module includes a bridge chip, the SSD device interface includes a plurality of m.2 interfaces and a plurality of U.2 interfaces, the plurality of m.2 interfaces and a plurality of U.2 interfaces are all connected to the bridge chip, the plurality of m.2 interfaces and a plurality of U.2 interfaces are all used for connecting the SSD device, and the USB interface is connected to the bridge chip.
Optionally, the SSD data retention and convenient storage device further includes a power detection module and a reset module, the power detection module is connected to the control module;
the reset module is connected with the control module, the reset module is further connected with a voltage output end of the power management module, and the reset module is used for receiving a control instruction of the control module and supplying power to the SSD device again.
Optionally, the SSD data holding and convenient storing device further includes a display module, the display module is connected to the control module and the power management module, and the display module is configured to display information of the SSD device.
The utility model discloses technical scheme supplies power to a plurality of SSD through adopting external power supply to can be according to the data retention algorithm in the SSD dish can be automatic to the dish in data keep. Therefore, the data can be kept by electrifying at any time and any place without depending on a host;
on the other hand, the device can be connected with a host, and read and write of each SSD can be managed through the host, which is equivalent to externally connecting a large-capacity storage device to the host, and the host can identify the connected SSDs and manage the SSDs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a block diagram of the SSD data retention and convenient storage device of the present invention;
fig. 2 is a circuit diagram of a power module of the SSD data retention and convenient storage device of the present invention;
fig. 3 is a circuit diagram of a power management module of the SSD data retention and convenient storage device of the present invention;
fig. 4 is a circuit diagram of a control module of the SSD data retention and convenient storage device of the present invention;
fig. 5 is a circuit diagram of a display module of the SSD data retention and convenient storage device of the present invention;
fig. 6 is a circuit diagram of a USB bridge module of the SSD data retention and convenient storage device of the present invention;
fig. 7 is a circuit diagram of an auxiliary chip of the SSD data retention and convenient storage device of the present invention;
fig. 8 is a circuit diagram reference number description of the m.2 interface of the SSD data retention and convenient storage device of the present invention:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
200 | Power |
| 300 | |
400 | |
| 500 | Power |
600 | |
| 700 | Clock |
800 | USB bridge module |
| 810 | Bridge chip | 820 | USB interface |
| 830 | M.2 interface | 840 | U.2 interface |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a SSD data keeps and convenient storage device.
As shown in fig. 1, in the present embodiment, the SSD data holding and convenient storage device includes: the power supply module 100, the power supply management module 200, the control module 300, the USB bridge module 800 and the clock crystal oscillator module 700; the power module 100 supplies power to the SSD data retention and convenient storage device; the power supply module 100 management module, the power supply management module 200 is connected with the power supply module 100, and is used for outputting a plurality of groups of different voltages; the control module 300 is connected to the USB bridge module 800, the USB bridge module 800 is provided with a USB interface and a plurality of SSD device interfaces, the SSD device interfaces are used for connecting SSD devices, the USB interface is used for connecting RS232 interfaces of a host, and the control module 300 is used for controlling data transmission between the SSD devices and the host; the clock oscillator module 700 is connected to the control module 300, and is configured to record data storage time of the SSD device.
Specifically, the method comprises the following steps:
as shown in fig. 2 and fig. 3, the power module 100 adopts a 12V dc power supply, and the power management module 200 filters and reduces the voltage of the 12V power supply to output a 5V voltage, a 3.3V voltage, a 2.5V voltage, and a 1.05V voltage; as shown in fig. 3 and 4, the 12V power supply outputs a 5V voltage through the processing of the first chip U1 (model MP8771GQ), and the 5V voltage is processed by: the processing of the second chip U2 (model MP1613GTL) outputs 3.3V voltage;
the processing output of the third chip U3 (model is MP2152GTF) is 2.5V voltage;
the processing of the fourth chip U4 (model is MP2152GTF) outputs 1.05V voltage;
as shown in FIG. 4, the control module 300 is disposed on a control chip U5 (model STC89C52RC _ LQFP44)
referring to fig. 2, 4, 6 and 8, the USB bridge module 800 includes a bridge chip U7, wherein pin 4, pin 9, pin 32, pin 39, pin 40 and pin 49 are connected to the 1.05V source output terminal, and pin 17, pin 34 and pin 59 are connected to the 2.5V voltage output terminal; pin 1, pin 27, pin 33, and pin 65 are grounded;
the pin 29, the pin 31, the pin 35, the pin 37, the pin 41, the pin 43, the pin 47, the pin 49, the pin 53 and the pin 55 of the m.2 interface are respectively connected with the pin 51, the pin 52, the pin 53, the pin 54, the pin 60, the pin 61, the pin 56, the pin 57, the pin 37 and the pin 38 of the bridge chip; the USB interface is respectively connected with a pin 6, a pin 7, a pin 9 and a pin 10 of the bridging chip;
as shown in fig. 1, 4 and 7, the control module 300 is further provided with an auxiliary chip U8 (model MAX3232), the pins 2 and 3 of the host interface RS232 are connected with the pins 15 and 14 of the auxiliary chip, and the pins 11 and 12 of the auxiliary chip are connected with the pins 7 and 6 of the control chip;
when the device is used, the SSD device is connected with the bridging chip through the M.2 interface, the USB interface is connected with the RS232 interface of the host, and the control chip controls the power supply module 100 to be powered on to supply power to the SSD device. It should be noted that, this device is equipped with a plurality of m.2 interfaces, so can connect a plurality of SSD equipment simultaneously, uses m.2 interface connection SSD equipment in this embodiment, in other embodiments, also can use U.2 interface connection SSD equipment, the technical scheme of the utility model does not do the restriction to the type of m.2 interface or U.2 interface.
After the power is turned on, the control chip detects the number of the powered SSD devices and detects information of each SSD device, including: sending a special command (for example, a command for acquiring SSD information by using standard NVMe such as get _ smart _ log/get _ fw _ log) to the SSD device, and recording basic information of each SSD product of each interface, such as parameter values of device number, capacity, temperature, Erasecnt, and the like;
then, the control chip controls to manage the information and controls the powered SSD equipment to enter a standby state;
further, the control chip detects whether the SSD device is connected with the RS232 bus through the bridge chip and the USB interface, and if the SSD device is connected with the RS232 bus, the control chip controls the SSD to enter a data writing and reading mode to wait for receiving a command and data of the host end through the RS 232; if not, controlling the SSD device to continuously keep in a standby state; and in the standby state, the power supply of each SSD is still kept, so that the SSD equipment can keep data according to the data retentions of the SSD equipment under the state that the host data are not read and written.
After the SSD equipment enters a read-write state, the control chip exposes the SSD equipment information to the host, executes a read-write command issued by the host, and records the time for executing the read-write command. Specifically, after detecting that the RS232 interface of the host is connected, the SSD is controlled to enter a read-write mode, the device information of the connected SSD product is exposed to the host after the SSD product enters the read-write mode, and the host can see a corresponding disk through the USB interface and can directly operate the disk; when the disc is operated, the data is distributed and written into a corresponding SSD product, and after the SSD device starts to read and write the stored data, the time is recorded so that the SSD can maintain the data at a later period according to the storage time and the DataRetention.
The utility model discloses SSD data keep and convenient storage device can supply power to a plurality of SSDs through adopting external power supply, can do data keep to the intradiscal data automatically according to the dataretention algorithm in the SSD dish to can need not to rely on the host computer, can go to do the maintenance to the data by the circular telegram anytime and anywhere;
on the other hand, the device can be connected with a host, and read and write of each SSD can be managed through the host, which is equivalent to externally connecting a large-capacity storage device to the host, and the host can identify the connected SSDs and manage the SSDs.
Further, referring to fig. 1, in this embodiment, the SSD data storage and convenient storage device further includes a power detection module 500 and a reset module 600, wherein the power detection module 500 is connected to the control module 300; the reset module 600 is connected to the control module 300, the reset module 600 is further connected to a voltage output end of the power management module 200, and the reset module 600 is configured to receive a control instruction of the control module 300 and re-supply power to the SSD device; specifically, after the SSD device enters the read-write state, the control chip detects the power supply voltage condition of the host through the RS232 interface, and if the host is powered down, the reset module 600 sends a re-link operation through the USB bridge module of the control module 300, and detects the number of powered SSDs and the subsequent operations described above again.
Further, referring to fig. 1, fig. 4 and fig. 5, in this embodiment, the SSD data storage and convenient storage device further includes a display module 400, the display module 400 is connected to the control module 300 and the power management module 200, and the display module 400 is configured to display information of the SSD device. Specifically, the display module 400 is provided with a display screen U6 (model number is CD4511BCWM), wherein a pin 1, a pin 2, a pin 6, and a pin 7 of the display screen are respectively connected to a pin 9, a pin 10, a pin 11, and a pin 8 of the control chip, a pin 16 of the display screen is connected to a 5V voltage output terminal, and the pin 8 is grounded; after the master control chip detects that the SSD device is powered on, the information of the powered SSD device can be sent to the display screen, so that a user can visually acquire the information of each SSD device from the display screen, and the use of the user is facilitated.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (4)
1. An SSD data retention and convenient storage device, comprising: the device comprises a power supply module, a power supply management module, a control module, a USB bridge module and a clock crystal oscillator module;
the power supply module supplies power to the SSD data holding and convenient storage device;
the power supply module management module is connected with the power supply module and is used for outputting a plurality of groups of different voltages;
the control module is connected with the USB bridge module, the USB bridge module is provided with a USB interface and a plurality of SSD device interfaces, the SSD device interfaces are used for connecting SSD devices, the USB interface is used for connecting an RS232 interface of a host, and the control module is used for controlling data transmission between the SSD devices and the host;
the clock crystal oscillator module is connected with the control module and used for recording the data storage time of the SSD device.
2. The SSD data retention and convenient storage device of claim 1, wherein the USB bridge module comprises a bridge chip, the SSD device interfaces comprise a plurality of m.2 interfaces and a plurality of U.2 interfaces, the plurality of m.2 interfaces and a plurality of U.2 interfaces are each connected to the bridge chip, the plurality of m.2 interfaces and a plurality of U.2 interfaces are each used to connect to an SSD device, the USB interface is connected to the bridge chip.
3. The SSD data retention and expedience storage device of claim 1, further comprising a power detection module and a reset module, the power detection module being connected to the control module;
the reset module is connected with the control module, the reset module is further connected with a voltage output end of the power management module, and the reset module is used for receiving a control instruction of the control module and supplying power to the SSD device again.
4. The SSD data retention and convenient storage device of any of claims 1 to 3, further comprising a display module, the display module being connected to the control module and to the power management module, the display module being configured to display information of the SSD apparatus.
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| CN112230864A (en) * | 2020-11-23 | 2021-01-15 | 深圳安捷丽新技术有限公司 | SSD data retention and convenient storage method and device |
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| CN112230864A (en) * | 2020-11-23 | 2021-01-15 | 深圳安捷丽新技术有限公司 | SSD data retention and convenient storage method and device |
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Address after: Room 502, Block A, Jingang Center, Jingang Building, Haoye Community, Xixiang Street, Baoan District, Shenzhen City, Guangdong Province, 518000 Patentee after: Shenzhen anjilite New Technology Co.,Ltd. Address before: No.302, no.6, zone 2, Fuhai Industrial Zone, Fuyong community, Fuyong street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen anjili New Technology Co.,Ltd. |