CN1804821A - Control system of multi-channel serial ATA and control card thereof - Google Patents

Control system of multi-channel serial ATA and control card thereof Download PDF

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Publication number
CN1804821A
CN1804821A CN 200510002198 CN200510002198A CN1804821A CN 1804821 A CN1804821 A CN 1804821A CN 200510002198 CN200510002198 CN 200510002198 CN 200510002198 A CN200510002198 A CN 200510002198A CN 1804821 A CN1804821 A CN 1804821A
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control
unit
control module
hard disk
order
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CN 200510002198
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CN100370448C (en
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乔重华
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Inventec Corp
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Inventec Corp
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Abstract

The invention discloses a control system and control card of the serial advanced technology attachment, which comprises: a first serial ATA control module, a first storage arbitrating unit, a second serial ATA control module, a second storage arbitrating unit, and a path choosing unit. It uses the first and second storage arbitrating unit to do arbitrating interpretative routine to decide the storage power and generates a choosing signal to the path choosing module by the interpretative result to switch the data transmitting path to the serial ATA control module with storage power.

Description

The control system of multi-channel serial ATA and control card thereof
Technical field
The present invention relates to a kind of hard-disk interface control system, particularly relate to a kind of storage area network (Storage Area Network, SAN) multi-channel serial ATA of system (Serial ATA, SATA) control system of being applied to.
Background technology
Arriving along with the information age, many enterprises solve significant data management and the problem of storing by storage area network (SAN) system, and the network architecture that the storage area network system is made up of memory device, by server join domain network the storage area network system is managed, when data wreck, the storage area network system can provide relevant remedial measures, with restore data to prerupture state, so as to reliability (Reliability) and the stability (Stability) that improves computer system.
In general, this class memory storage (for example, hard disk) transmission interface adopts small computer system interface (Small Computer System Interface mostly, SCSI), though the hard disk of small computer system interface has the fast advantage of transmission speed, but under the consideration with regard to whole manufacturing cost,, can't bear so expensive storage area network system to medium and small sized enterprises.
So, the hard disk of serial ATA transmission interface just is put in the design consideration, though present serial ATA transmission interface on data rate a little less than small computer system interface (SCSI), but its manufacturing cost can meet the requirement of medium-sized and small enterprises, have only the serial ATA transmission interface to have single pass interface specification, so for the storage area network system, its transmission channel is just obviously not enough.
Therefore, how to provide a kind of multichannel serial ATA interface data access control system,, become one of researchist's problem to be solved so as to reducing the cost of storage array network system.
Summary of the invention
Shortcoming and insurmountable problem in view of the prior art existence, the present invention proposes a kind of control system and control card thereof of multi-channel serial ATA, by an access right coordinator, so that obtain the serial ATA control module of access right hard disk is carried out data access operation, so as to reaching the purpose of multi-channel serial ATA interface data access.
So, for achieving the above object, the control system of multi-channel serial ATA disclosed in this invention, be in order to a hard disk carried out data access control, to comprise: the first serial ATA control module, the first access right arbitration unit, the second serial ATA control module, second access right arbitration unit and the path selection module.
The first serial ATA control module control in order to hard disk is carried out data access, and the first serial ATA controller also comprises:
The Network Transmission unit connects a Local Area Network in order to the first serial ATA control module to be provided, and to transmit or to receive relevant data and control command, wherein the Network Transmission unit comprises a local area network (Ethernet) port.
First access right arbitration (Arbitration) unit, be arranged in the first serial ATA control module, wherein the first access right arbitration unit can be formula grid array able to programme (Field Programmable Gate Array, FPGA) or high complexity programmable logic device (PLD) (Complex Programmable Logic Device, CPLD) or the like other planning logic device able to programme.
The control chip unit is connected with Network Transmission unit and hard disk control module, in order to the circuit working of Control Network transmission unit and hard disk control module.
Microprocessor unit is connected with the control chip unit, in order to the signal of processing controls chip unit.
The hard disk control module receives the data from Local Area Network, after obtaining access right, in order to hard disk is carried out data access operation, is connected to path selection unit by serial ATA interface.
The second serial ATA control module control in order to hard disk is carried out data access, and the second serial ATA control module also comprises:
The Network Transmission unit connects a Local Area Network in order to the second serial ATA control module to be provided, and to transmit or to receive relevant data and control command, wherein the Network Transmission unit comprises a local area network (Ethernet) port.
Second access right arbitration (Arbitration) unit, be arranged in the second serial ATA control module, be connected with the first access right arbitration unit, by an arbitration calculation program, with the access right of decision to the hard disc data transmission, and according to operation result generation selection signal, wherein the second access right arbitration unit can be other planning logic device able to programme of formula grid array able to programme (FPGA) or high complexity programmable logic device (PLD) (CPLD) or the like.
The control chip unit is connected with Network Transmission unit and hard disk control module, in order to the circuit working of Control Network transmission unit and hard disk control module.
Microprocessor unit is connected with the control chip unit, in order to the signal of processing controls chip unit.
The hard disk control module receives the data from Local Area Network, after obtaining access right, in order to hard disk is carried out data access operation, is connected to path selection unit by serial ATA interface.
Path selection module, be connected with first and second serial ATA control module, has the multi-path data transmission channel, according to selecting signal, selectivity switch data transmission path, so that obtain the serial ATA controller of access right hard disk is carried out data access operation, wherein path selection module can be made up of a multiplexer (Multiplexer).
In addition, the invention discloses a kind of control card of serial ATA for achieving the above object,, comprising in order to a hard disk is carried out data access control:
The Network Transmission unit connects a Local Area Network in order to the control card that serial ATA interface is provided, and to transmit or to receive relevant data and control command, wherein the Network Transmission unit comprises a local area network port.
The access right arbitration unit, be arranged in the control card of serial ATA interface, wherein the access right arbitration unit can be formula grid array able to programme (Field Programmable Gate Array, FPGA) or high complexity programmable logic device (PLD) (Complex Programmable Logic Device, CPLD) or the like other planning logic device able to programme.
The control chip unit is connected with Network Transmission unit and hard disk control module, in order to the circuit working of Control Network transmission unit and hard disk control module.
Microprocessor unit is connected with the control chip unit, in order to the signal of processing controls chip unit.
The hard disk control module receives the data from Local Area Network, after obtaining access right, in order to hard disk is carried out data access operation.
In addition, the invention also discloses a kind of multi-channel serial ATA control method, comprise the steps: for achieving the above object
At first, send access requirement message to another access right arbitration unit; Judge the content of response message; If receive the busy condition response message, then after waiting for one period schedule time, get back to and send the step of access requirement message to another access right arbitration unit.
If receive the idle state response message, then expression obtains access right, and produces a selection signal; Then, path selection unit switches transmission path according to the selection signal that receives gives the serial ATA control module that obtains access right, to carry out data access control.
Control system and control card thereof by this multi-channel serial ATA, by the access right coordinator, provide the serial ATA that obtains access right to carry out data read/write operation, so that single pass SATA control card has the function of multichannel data transfer path, so as to reaching the purpose that reduces storage array network (SAN) system cost.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Figure 1 shows that system block diagram of the present invention; And
Figure 2 shows that flow chart of steps of the present invention.
Wherein, Reference numeral is as follows:
10-Network Transmission unit
The 100-first serial ATA control module
The 11-first access right arbitration unit
12-control chip unit
The 13-microprocessor unit
14-hard disk control module
The 150-LAN
20-Network Transmission unit
The 200-second serial ATA control module
The 21-second access right arbitration unit
22-control chip unit
The 23-microprocessor unit
24-hard disk control module
The 30-path selection module
The 40-hard disk
Embodiment
With reference to Fig. 1, be system block diagram of the present invention, comprising: the first serial ATA control module 100, the first access right arbitration unit 11, the second serial ATA control module 200, the second access right arbitration unit 21 and path selection module 30.
The first serial ATA control module 100 control in order to hard disk 40 is carried out data access (for example, read or write), and the first serial ATA control module 100 also comprises:
Network Transmission unit 10, in order to provide the first serial ATA control module 100 to be connected to Local Area Network 150, to transmit or to receive relevant data and control command, and Network Transmission unit 10 comprises a local area network (Ethernet) port to be connected to Local Area Network 150, and wherein storage area network (SAN) system (not shown) carries out data management by 150 pairs of hard disks of Local Area Network 40.
The first access right arbitration unit 11, be arranged in the first serial ATA control module 100, be connected with the Network Transmission unit 10 and the second access right arbitration unit 21 respectively, according to the data and the control command that receive, and by an arbitration calculation program, whether obtain access right with decision, and produce the selection signal, make 100 pairs of hard disks of the first serial ATA control module 40 carry out data access control by obtaining access right according to operation result.
Wherein the first access right arbitration unit 11 can be formula grid array able to programme (Field ProgrammableGate Array, FPGA) or high complexity programmable logic device (PLD) (Complex Programmable Logic Device, CPLD) or the like other planning logic device able to programme.
Control chip unit 12 is connected with Network Transmission unit 10, in order to the circuit working of Control Network transmission unit 10 with hard disk control module 14.Microprocessor unit 13 is connected with control chip unit 12, in order to the signal of processing controls chip unit 12.
Hard disk control module 14 is connected with control chip unit 12, receives the data from Local Area Network 150, after obtaining access right, in order to hard disk 40 is carried out data access operation, is connected to path selection unit 30 by serial ATA interface.
The second serial ATA control module 200 control in order to hard disk 40 is carried out data access (for example, read or write), and the second serial ATA control module 200 also comprises:
Network Transmission unit 20, in order to provide the second serial ATA control module 200 join domain networks 150, to transmit or to receive relevant data and control command, and Network Transmission unit 20 comprises a local area network (Ethernet) port to be connected to Local Area Network 150, and wherein storage area network (SAN) system (not shown) carries out data management by 150 pairs of hard disks of Local Area Network 40.
The second access right arbitration unit 21, be connected with the Network Transmission unit 20 and the first access right arbitration unit 11 respectively, by an arbitration calculation program, with the decision access right, and according to operation result generation selection signal, and the first access right arbitration unit 11 and the second access right arbitration unit 21 are also connected to path selection module 30, are sent to path selection module 30 will select signal.
Wherein the second access right arbitration unit 21 can be other planning logic device able to programme of formula grid array able to programme (FPGA) or high complexity programmable logic device (PLD) (CPLD) or the like.
Control chip unit 22 is connected with Network Transmission unit 20, in order to the circuit working of Control Network transmission unit 20 with hard disk control module 24.
Microprocessor unit 23 is connected with control chip unit 22, in order to the signal of processing controls chip unit 22.
Hard disk control module 24 is connected with control chip unit 22, receives the data from Local Area Network 150, after obtaining access right, in order to hard disk 40 is carried out data access operation, is connected to path selection unit 30 by serial ATA interface.
Path selection module 30, have a plurality of input ends and an output terminal, and input end connects the hard disk control module 14 of the first serial ATA control module 100 and the hard disk control module 24 of the second serial ATA control module 200 respectively, output terminal then is connected to hard disk 40, and path selection module 30 has the multi-path data transmission channel, selection signal according to input, selectivity is switched access path, so that different data transfer paths to be provided, so as to making the serial ATA control module (the first serial ATA control module 100 or the second serial ATA control module 200) that obtains access right be connected to hard disk 40, the line data read of going forward side by side, wherein path selection module 30 can be made up of multiplexer (Multiplexer).
Hard disk 40 is connected with path selection unit 30, and in order to a storage area to be provided, to deposit the data of storage area network system, it has the interface of first generation serial ATA (SATA I) or second generation serial ATA II (SATA II).
Then, with reference to Fig. 2, be flow chart of steps of the present invention.At first, the first serial ATA control module 100 and the second serial ATA control module 200 be respectively by relevant data and the access command of Network Transmission unit (10 and 20) reception, hard disk is carried out the operation of data read/write.
The first serial ATA control module 100 and the second serial ATA control module 200 are by an arbitration calculation program, with the decision access right.And arbitration calculation program is explained by following example, when the first serial ATA control module 100 receives data and control command, promptly send access requirement message to the second access right arbitration unit 21 (step 300) by the first access right arbitration unit 11, and the second access right arbitration unit 21 responds a status message according to current state after receiving access requirement message.
Next, judge the content (step 301) of response message, if busy condition message, then the first access right arbitration unit 11 is got back to step 300 after waiting for a schedule time (step 302).
If the second access right arbitration unit, 21 response idle state message, represent that promptly the present second access right arbitration unit 21 does not carry out data read/write operation to hard disk 40, and after access right arbitration unit 11 receives the idle state response message, promptly obtain access right, then, it produces one and selects signal to path selection module 30 (step 303), with the switch data transmission path, and hard disk 40 is carried out data read/write operation in next bus cycles (Cycle), wherein when if the first serial ATA control module 100 and the second serial ATA control module 200 are sent access requirement message simultaneously mutually and are arrived the other side, then determine that in random number calculation mode wherein a side obtains access right, the opposing party then enters waiting status, to finish arbitration calculation program.
And path selection module 30 is switched corresponding transmission path to the serial ATA control module (step 304) that obtains access right according to the selection signal that receives, to carry out data transfer operation, wherein path selection module 30 can be reached operational requirements by multiplexer (Multiplexer).
In addition, above-mentionedly receive relevant data and the situation of access command explains with the first serial ATA control module 100, when if the second serial ATA control module 200 receives relevant data and access command, then sending access by the second access right arbitration unit 21 requires message to the first access right arbitration unit 20, and the deciding means that access right obtains as above, do not repeat them here.
Control system and control card thereof by this multi-channel serial ATA, except single pass serial ATA control card can be reached the function of multipath access, also by the access right arbitration unit, make the accessing operation of data more efficient, so as to purpose that reaches the multi-channel serial ATA data transmission and the purpose that reduces storage array network (SAN) system cost.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (12)

1, a kind of control system of multi-channel serial Advanced Technology Attachment is characterized in that, in order to a hard disk is carried out data access control, comprising:
One first Serial Advanced Technology Attachment control module is carried out data access operation in order to control described hard disk;
One first access right arbitration unit is arranged in the described first Serial Advanced Technology Attachment control module;
One second Serial Advanced Technology Attachment control module is connected with the described first Serial Advanced Technology Attachment control module, carries out data access operation in order to control described hard disk;
One second access right arbitration unit is arranged in the described second Serial Advanced Technology Attachment control module, carries out an arbitration calculation program with the described first access right arbitration unit, and produces a selection signal according to the result of described arbitration calculation program; And
One path selection module, be connected with described first and the described second Serial Advanced Technology Attachment control module, according to described selection signal-selectivity switch data transmission path so that described first or the described second Serial Advanced Technology Attachment control module described hard disk is carried out data access control.
2, control system according to claim 1 is characterized in that, the described first Serial Advanced Technology Attachment control module also comprises:
One Network Transmission unit is in order to provide a data transmission channel, to be connected to a Local Area Network;
One hard disk control module is in order to carry out data access operation to described hard disk;
One control chip unit is in order to control the operation of described Network Transmission unit and described hard disk control module; And
One microprocessor unit is in order to handle the signal of described control chip unit.
3, control system according to claim 2 is characterized in that, described Network Transmission unit comprises a local area network port.
4, control system according to claim 1 is characterized in that, the described second Serial Advanced Technology Attachment control module also comprises:
One Network Transmission unit is in order to provide a data transmission channel, to be connected to a Local Area Network;
One hard disk control module is in order to carry out data access operation to described hard disk;
The operation of described Network Transmission unit and described hard disk control module is controlled in one control chip unit; And
One microprocessor unit is in order to handle the signal of described control chip unit.
5, control system according to claim 4 is characterized in that, a local area network port is drawn together in described Network Transmission unit.
6, control system according to claim 1 is characterized in that, described path selection unit is made up of a multiplexer.
7, control system according to claim 1 is characterized in that, the described first access right arbitration unit is made up of a formula grid array able to programme.
8, control system according to claim 1 is characterized in that, the described first access right arbitration unit is made up of a high complexity programmable logic device (PLD).
9, a kind of control card of Serial Advanced Technology Attachment is characterized in that, in order to a hard disk is carried out data access control, comprising:
One Network Transmission unit is in order to provide a data transmission channel, to be connected to a Local Area Network;
One hard disk control module receives the data from described Local Area Network, in order to described hard disk is carried out the data access operation;
The operation of described Network Transmission unit and described hard disk control module is controlled in one control chip unit;
One microprocessor unit is in order to handle the signal of this control chip unit; And
One access right arbitration unit, reception is from the order of described Local Area Network, and carry out an arbitration calculation program with the access right arbitration unit of the control card of another Serial Advanced Technology Attachment interface, to determine an access right, so as to described hard disk being carried out data access control.
10, control card according to claim 9 is characterized in that, described Network Transmission unit comprises a local area network port.
11, control card according to claim 9 is characterized in that, described access right arbitration unit is made up of a formula grid array able to programme.
12, control card according to claim 9 is characterized in that, described access right arbitration unit is made up of a high complexity programmable logic device (PLD).
CNB2005100021988A 2005-01-14 2005-01-14 Control system of multi-channel serial ATA and control card thereof Expired - Fee Related CN100370448C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101295252B (en) * 2007-04-28 2010-05-26 佛山市顺德区顺达电脑厂有限公司 Initialization system and method
CN101329617B (en) * 2007-06-20 2010-10-27 北京神州龙芯集成电路设计有限公司 Hard disk controller
CN103135938A (en) * 2011-11-23 2013-06-05 英业达股份有限公司 System and method for control of single-correlation serial advanced technology attachment (SATA) driver with active redundant array of independent disks (RAID)
CN104199621A (en) * 2014-08-28 2014-12-10 北京莱金信息技术有限公司 Hard disk management system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7073022B2 (en) * 2002-05-23 2006-07-04 International Business Machines Corporation Serial interface for a data storage array
US20040123027A1 (en) * 2002-10-03 2004-06-24 Workman Michael Lee Systems and methods of multiple access paths to single ported storage devices
DE10311815A1 (en) * 2003-03-18 2004-12-09 Siemens Ag Communication arrangement for controlling memory access of two or more communications units to a shared memory unit has a multiplexer linking the communications units to the memory operating at a multiple of their access frequency
US7539797B2 (en) * 2003-06-11 2009-05-26 Lsi Corporation Route aware Serial Advanced Technology Attachment (SATA) Switch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101295252B (en) * 2007-04-28 2010-05-26 佛山市顺德区顺达电脑厂有限公司 Initialization system and method
CN101329617B (en) * 2007-06-20 2010-10-27 北京神州龙芯集成电路设计有限公司 Hard disk controller
CN103135938A (en) * 2011-11-23 2013-06-05 英业达股份有限公司 System and method for control of single-correlation serial advanced technology attachment (SATA) driver with active redundant array of independent disks (RAID)
CN104199621A (en) * 2014-08-28 2014-12-10 北京莱金信息技术有限公司 Hard disk management system
CN104199621B (en) * 2014-08-28 2017-09-12 北京汉龙思琪数码科技有限公司 hard disk management system

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