CN202796068U - Hard disk expansion interface device - Google Patents
Hard disk expansion interface device Download PDFInfo
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- CN202796068U CN202796068U CN201220416064.6U CN201220416064U CN202796068U CN 202796068 U CN202796068 U CN 202796068U CN 201220416064 U CN201220416064 U CN 201220416064U CN 202796068 U CN202796068 U CN 202796068U
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Abstract
The utility model provides a hard disk expansion interface device. A PCI-E expansion SATA chip and PM chips are adopted simultaneously to expand SATA interface connectors. The upper limit of the number of the SATA interface connectors is added, and a bandwidth of an SATA bus and a bandwidth of a PCI-E bus are utilized to read and write data. Therefore, the reading-writing performance of the SATA interface connectors is improved.
Description
Technical field
The utility model relates to field of data storage, relates in particular to a kind of hard disk expansion interface device.
Background technology
Along with all trades and professions are more and more higher to the requirement of security monitoring, also increasing by the video data that monitoring produces, therefore, when the storage of video data, also need the more and more digital hard disk of high power capacity.In existing video monitoring equipment, as in digital hard disc video recorder, a plurality of digital hard disks are set usually with the extension storage amount, generally adopt following two kinds of extended modes:
1, by PM(Port Multiplier, port multiplier) the hard disk expansion interface device of chip expansion, as shown in Figure 1a, the hard disk expansion interface device comprises controller, the PM chip that is connected with controller, a plurality of SATA(Serial Advanced Technology Attachment that are connected with the PM chip, Serial Advanced Technology Attachment) interface connector, the PM interface chip by the SATA bus respectively with controller with are connected the SATA interface connector and are connected, can expand a plurality of SATA interface connectors for the hard disk connection by above-mentioned setting;
2, by PCI-E(Peripheral Component Interconnect Express, peripheral component high-speed interconnect standard) the hard disk expansion interface device of expansion SATA chip and PM chip expansion, shown in Fig. 1 b, the hard disk expansion interface device comprises controller, the PCI-E expansion SATA chip that is connected with controller, the PM chip that is connected with PCI-E expansion SATA chip, and a plurality of SATA interface connectors that are connected with the PM chip, wherein, PCI-E expansion SATA chip is connected by the PCI-E bus with controller, the PM chip by SATA bus and PCI-E expansion SATA chip with are connected the SATA interface connector and are connected, can expand equally a plurality of SATA interface connectors that supply the hard disk connection by above-mentioned the setting;
Although the introducing by PM chip or PCI-E expansion SATA chip and PM chip can expand a plurality of SATA interface connectors, if but only expand by above-mentioned prior art, because the restriction of controlled device, PM chip, PCI-E expansion SATA chip, the SATA interface connector that can expand is often very limited.When for example needing to expand 18 hard-disk interfaces, adopt said method often infeasible; Moreover the readwrite performance of the SATA interface connector after the expansion is limited, if expand by the PM chip, then all SATA interface connectors of expanding of PM chip are shared the bandwidth of a SATA bus; Equally, if carry out the expansion of SATA interface connector by PCI-E expansion SATA chip and PM chip, the SATA interface connector of then expanding is shared the bandwidth of PCI-E bus.Therefore, in the situation that the SATA interface connector of expanding increases, the bandwidth that each dish is shared reduces, and readwrite performance suffers restraints.
The utility model content
The utility model provides a kind of hard disk expansion interface device, solves the SATA interface connector limited amount of expanding in the existing hard disk expansion interface device, and the limited problem of readwrite performance.
The technological means that the utility model adopts is as follows: a kind of hard disk expansion interface device, comprise controller, and expand SATA chip and the one-level PM chip that is connected by the SATA bus with controller with PCI-E that controller is connected by the PCI-E bus; Wherein,
PCI-E expansion SATA chip is connected with secondary PM chip by the SATA bus, and secondary PM chip is connected with first group of SATA interface connector by the SATA bus, and described first group of SATA interface connector comprises at least one SATA interface connector;
One-level PM chip is connected with second group of SATA interface connector by the SATA bus, and described second group of SATA interface connector comprises at least one SATA interface connector.
Further, described controller is advanced reduced instruction set computer machine or field programmable gate array.
The utility model also provides a kind of hard disk expansion interface device, comprises controller, the PCI-E expansion SATA chip that is connected by the PCI-E bus with controller and the one-level PM chip that is connected by the SATA bus with controller; Wherein,
PCI-E expansion SATA chip is connected with first group of SATA interface connector by the SATA bus, and described first group of SATA interface connector comprises a SATA interface connector;
One-level PM chip is connected with second group of SATA interface connector by the SATA bus, and described second group of SATA interface connector comprises at least one SATA interface connector.
Further, described controller is advanced reduced instruction set computer machine or field programmable gate array.
The hard disk expansion interface device that adopts the utility model to provide, introducing simultaneously PCI-E expansion SATA chip and PM chip expands the SATA interface connector, when having increased the SATA interface connector number upper limit, can utilize simultaneously SATA bus bandwidth and PCI-E bus bandwidth to carry out the read-write of data, improve the performance of storage system.
Description of drawings
Fig. 1 a is the structural representation that uses PM chip expansion SATA interface connector in the prior art;
Fig. 1 b is the structural representation that uses PCI-E expansion SATA chip expansion SATA interface connector in the prior art;
Fig. 2 is the structural representation of a kind of embodiment of the utility model hard disk expansion interface device;
Fig. 3 is the structural representation of the another kind of embodiment of the utility model hard disk expansion interface device.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Embodiment one:
As shown in Figure 2, the utility model hard disk expansion interface device comprises controller, the PCI-E expansion SATA chip that is connected by the PCI-E bus with controller and the one-level PM chip that is connected by the SATA bus with controller; As preferably, controller is advanced reduced instruction set computer machine (ARM) or field programmable gate array (FPGA);
Wherein, PCI-E expansion SATA chip is connected with secondary PM chip by the SATA bus, secondary PM chip is connected with the first group of SATA interface connector that comprises at least one SATA interface connector by the SATA bus, consist of thus an expansion link, use separately the structure of PCI-E expansion SATA chip expansion identical in this expansion link and prior art, it is also identical to use PCI-E to expand the SATA interface connector number upper limit that the SATA chip expands in the number upper limit of the SATA interface connector of this link expansion and the prior art;
One-level PM chip is connected with the second group of SATA interface connector that comprises at least one SATA interface connector by the SATA bus, consist of thus another expansion link, use separately the structure of PM chip identical in this expansion link and prior art, the number upper limit that use PM chip is expanded in the number upper limit of the SATA interface connector of this link expansion and the prior art is also identical;
This shows that when using at the same time above-mentioned two expansion links, the number of extendible SATA interface connector is always reached the standard grade as using in the prior art respectively separately closing of the upper limit of PCI-E expansion SATA chip and PM chip.
On the basis of present embodiment one, during practical application, SATA interface connector in first group of SATA interface connector and the second group of SATA interface connector hard disk that all can connect one to one, be connected to the hard disk of first group of SATA interface connector, its bandwidth of carrying out reading and writing data is subjected to the limit bandwidth of PCI-E bus, the bandwidth that the hard disk that is connected to second group of SATA interface connector carries out reading and writing data then only is subjected to the limit bandwidth of SATA bus, therefore, in actual applications, total read-write bandwidth is PCI-E bus bandwidth and SATA bus bandwidth sum.
Embodiment two:
As shown in Figure 3, the utility model hard disk expansion interface device comprises controller, the PCI-E expansion SATA chip that is connected by the PCI-E bus with controller and the one-level PM chip that is connected by the SATA bus with controller; As preferably, controller is advanced reduced instruction set computer machine (ARM) or field programmable gate array (FPGA);
Wherein, PCI-E expansion SATA chip is connected with the first group of SATA interface connector that only comprises a SATA interface connector by the SATA bus, consists of thus an expansion link, in this expansion link a SATA interface connector is only arranged;
One-level PM chip is connected with the second group of SATA interface connector that comprises at least one SATA interface connector by the SATA bus, consist of thus another expansion link, use separately the structure of PM chip identical in this expansion link and prior art, the number upper limit that use PM chip is expanded in the number upper limit of the SATA interface connector of this link expansion and the prior art is also identical;
This shows, use at the same time above-mentioned two expansions during link, always reach the standard grade the upper limit when using in the prior art the PM chip of the number of extendible SATA interface connector is Duoed a SATA interface connector.
On the basis of present embodiment two, during practical application, first group of SATA interface connector can connect a hard disk; Second group of SATA interface connector can according to the number of its SATA interface connector that specifically comprises, connect at least one hard disk one to one; Wherein, the bandwidth that the hard disk that is connected with first group of SATA interface connector carries out reading and writing data is subjected to the limit bandwidth of PCI-E bus; The bandwidth that at least one hard disk that is connected with second group of SATA interface connector carries out reading and writing data then only is subjected to the limit bandwidth of SATA bus, and therefore, in the present embodiment, total readwrite bandwidth is PCI-E bus bandwidth and SATA bus bandwidth sum.
This shows, in the utility model, introducing simultaneously PCI-E expansion SATA chip and PM chip expands the SATA interface connector, when having increased the SATA interface connector number upper limit, can utilize simultaneously SATA bus bandwidth and PCI-E bus bandwidth to carry out the read-write of data, improve the performance of read-write.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (4)
1. a hard disk expansion interface device comprises controller, it is characterized in that, also comprises the PCI-E expansion SATA chip that is connected by the PCI-E bus with controller and the one-level PM chip that is connected by the SATA bus with controller; Wherein,
PCI-E expansion SATA chip is connected with secondary PM chip by the SATA bus, and secondary PM chip is connected with first group of SATA interface connector by the SATA bus, and described first group of SATA interface connector comprises at least one SATA interface connector;
One-level PM chip is connected with second group of SATA interface connector by the SATA bus, and described second group of SATA interface connector comprises at least one SATA interface connector.
2. device according to claim 1 is characterized in that, described controller is advanced reduced instruction set computer machine or field programmable gate array.
3. a hard disk expansion interface device comprises controller, it is characterized in that, also comprises the PCI-E expansion SATA chip that is connected by the PCI-E bus with controller and the one-level PM chip that is connected by the SATA bus with controller;
Wherein,
PCI-E expansion SATA chip is connected with first group of SATA interface connector by the SATA bus, and described first group of SATA interface connector comprises a SATA interface connector;
One-level PM chip is connected with second group of SATA interface connector by the SATA bus, and described second group of SATA interface connector comprises at least one SATA interface connector.
4. device according to claim 3 is characterized in that, described controller is advanced reduced instruction set computer machine or field programmable gate array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220416064.6U CN202796068U (en) | 2012-08-21 | 2012-08-21 | Hard disk expansion interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220416064.6U CN202796068U (en) | 2012-08-21 | 2012-08-21 | Hard disk expansion interface device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796068U true CN202796068U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220416064.6U Expired - Lifetime CN202796068U (en) | 2012-08-21 | 2012-08-21 | Hard disk expansion interface device |
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| CN (1) | CN202796068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035529A (en) * | 2014-06-20 | 2014-09-10 | 浪潮(北京)电子信息产业有限公司 | Ice storage server |
-
2012
- 2012-08-21 CN CN201220416064.6U patent/CN202796068U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035529A (en) * | 2014-06-20 | 2014-09-10 | 浪潮(北京)电子信息产业有限公司 | Ice storage server |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |