CN104049679A - SAS (serial attached SCSI) extensible backboard - Google Patents
SAS (serial attached SCSI) extensible backboard Download PDFInfo
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- CN104049679A CN104049679A CN201310079448.2A CN201310079448A CN104049679A CN 104049679 A CN104049679 A CN 104049679A CN 201310079448 A CN201310079448 A CN 201310079448A CN 104049679 A CN104049679 A CN 104049679A
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- sas
- expansion board
- backboard
- extendible
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Abstract
The invention provides an SAS (serial attached SCSI) extensible backboard, which comprises a BMC (baseboard management controller), a first extender board and a second extender board, wherein the BMC is used for connecting a plurality of hard discs, and the first extender board and the second extender board are used for expanding the number of the connectable hard discs. The SAS extensible backboard also comprises a multiplexer, wherein the multiplexer is connected with the BMC, the first extender board and the second extender board and is used for switching the first extender board to be disconnected from the second extender board or switching the first extender board to be connected with the second extender board according to a GPIO (general purpose input/output) signal. The SAS extensible backboard is automatically switched to a Standalone framework or a Daisy-Chain framework according to different Mini-SAS Cable connecting methods, and convenience is brought to users.
Description
Technical field
The present invention relates to the extendible backboard of a kind of SAS, particularly the extendible backboard of a kind of SAS of changeable framework.
Background technology
SAS (Serial Attached SCSI) is that Serial Attached SCSI (SAS) expansion framework mainly comprises Standalone framework and two kinds of frameworks of Daisy-Chain framework.In the backboard of Standalone framework, each expansion board (SAS Expander) connects by Mini-SASCable respectively and between corresponding promoter, and does not connect between expansion board.And the backboard of Daisy-Chain framework is connected and is connected to each other by Mini-SAS Cable between expansion board.
When the extendible backboard of design SAS, traditional way is the backboard different according to different architecture designs, if therefore need support two kinds of frameworks simultaneously, needs to design two backboards, very inconvenient.
Summary of the invention
In view of this, be necessary to provide a kind of extendible backboard of SAS of changeable framework.
The extendible backboard of a kind of SAS, comprise one for the substrate controller BMC, that connects some hard disks for expanding the first expansion board and one second expansion board of attachable hard disk quantity.The extendible backboard of this SAS also comprises: a multiplexer, be connected with BMC, the first expansion board and the second expansion board, and for making the first expansion board switch to according to a GPIO signal and the second expansion board disconnects, or switch to the second expansion board and be connected.
The extendible backboard of SAS of the present invention is automatically switched to the framework of Standalone or the framework of Daisy-Chain according to Mini-SAS Cable method of attachment difference, provides convenience to user.
Brief description of the drawings
Fig. 1 is the structural representation of the extendible backboard of SAS of the changeable framework under the preferential embodiment of the present invention.
Fig. 2 is the schematic diagram that switches to Standalone framework of the extendible backboard of SAS in Fig. 1.
Fig. 3 is the schematic diagram that switches to Daisy-Chain framework of the extendible backboard of SAS in Fig. 1.
Main element symbol description
The extendible backboard 10 of SAS
Expansion board a 101
Multiplexer 200
BMC 300
Expansion board b 201
Promoter a 102
Promoter b 202
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Referring to Fig. 1, is the structural representation of the extendible backboard of SAS of the changeable framework under the preferential embodiment of the present invention.The extendible backboard of SAS can comprise multiple expansion boards, for ease of understanding, below all describes taking two as example.
The extendible backboard 10 of SAS comprises an expansion board a101, a multiplexer 200, a BMC300 and an expansion board b201.BMC300 is used for connecting some hard disks (as SAS/SATA Drive).Expansion board a101 and expansion board b201 are used for expanding attachable hard disk quantity.
Multiplexer 200 is connected with expansion board a101, BMC300 and expansion board b201.Wherein, multiplexer 200 also has a GPIO port, for obtaining a GPIO signal, thereby controls multiplexer 200.Multiplexer 200 disconnects for make expansion board a101 switch with expansion board b201 according to GPIO signal, or switches to expansion board b201 and be connected.
GPIO signal is different and different according to the method for attachment of Mini-SASCable.Concrete, in the time using Standalone framework, between expansion board a101 and expansion board b201, do not have Mini-SAS Cable to be connected, GPIO signal is 1; In the time using Daisy-Chain framework, between expansion board a101 and expansion board b201, be connected by Mini-SASCable, GPIO signal is 0.
Referring to Fig. 2, is the schematic diagram of the framework that switches to Standalone of the extendible backboard of SAS in Fig. 1.Under the pattern of Standalone, GPIO signal is 1, multiplexer 200 makes expansion board a101 connect a promoter a102 by Mini-SAS Cable, makes expansion board b201 connect a promoter b202 by Mini-SAS Cable, and expansion board a101 and expansion board b201 are all connected to BMC300.
Referring to Fig. 3, is the schematic diagram of the framework that switches to Daisy-Chain of the extendible backboard of SAS in Fig. 1.In the pattern of Daisy-Chain, between expansion board a101 and expansion board b201, be connected by Mini-SAS Cable, GPIO signal is 0, multiplexer 200 makes expansion board a101 by Mini-SAS Cable Connection initiator a102, expansion board a101 is connected by Mini-SAS Cable and expansion board b201, and make expansion board b201 be connected to BMC300 by expansion board a101.
The extendible backboard 10 of SAS of the present invention is automatically switched to the framework of Standalone or the framework of Daisy-Chain according to Mini-SAS Cable method of attachment difference, provides convenience to user.
In a word; those skilled in the art will be appreciated that; above embodiment is only for the present invention is described; and be not used as limitation of the invention; as long as within connotation scope of the present invention, within the appropriate change that above embodiment is done and variation all drop on the scope of protection of present invention.
Claims (6)
1. the extendible backboard of SAS, comprise one for the substrate controller BMC, that connects some hard disks for expanding the first expansion board and one second expansion board of attachable hard disk quantity, it is characterized in that, the extendible backboard of this SAS also comprises:
One multiplexer, is connected with BMC, the first expansion board and the second expansion board, for making the first expansion board switch to according to a GPIO signal and the second expansion board disconnects, or switches to the second expansion board and is connected.
2. the extendible backboard of SAS as claimed in claim 1, is characterized in that, described GPIO signal is different and different according to the method for attachment of Mini-SAS Cable.
3. the extendible backboard of SAS as claimed in claim 2, is characterized in that, in the time using Standalone framework, between the first expansion board and the second expansion board, does not have Mini-SAS Cable to be connected, and GPIO signal is 1.
4. the extendible backboard of SAS as claimed in claim 3, it is characterized in that, it is 1 o'clock at GPIO signal, multiplexer makes the first expansion board connect one first promoter by Mini-SAS Cable, the second expansion board connects one second promoter by Mini-SAS Cable, and makes the first expansion board and the second expansion board all be connected to BMC.
5. the extendible backboard of SAS as claimed in claim 2, is characterized in that, in the time using Daisy-Chain framework, between the first expansion board and the second expansion board, is connected by Mini-SAS Cable, and GPIO signal is 0.
6. the extendible backboard of SAS as claimed in claim 1, it is characterized in that, it is 0 o'clock at GPIO signal, multiplexer makes the first expansion board connect the first promoter by Mini-SAS Cable, the first expansion board is connected with the second expansion board by Mini-SAS Cable, and makes the second expansion board be connected to BMC by the first expansion board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079448.2A CN104049679B (en) | 2013-03-13 | 2013-03-13 | The extendible backboards of SAS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079448.2A CN104049679B (en) | 2013-03-13 | 2013-03-13 | The extendible backboards of SAS |
Publications (2)
| Publication Number | Publication Date |
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| CN104049679A true CN104049679A (en) | 2014-09-17 |
| CN104049679B CN104049679B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310079448.2A Active CN104049679B (en) | 2013-03-13 | 2013-03-13 | The extendible backboards of SAS |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050289263A1 (en) * | 2004-06-24 | 2005-12-29 | Dell Products L.P. | System and method of SCSI and SAS hardware validation |
| US20100064164A1 (en) * | 2008-09-09 | 2010-03-11 | International Business Machines Corporation | Autonomic Component Service State Management for a Multiple Function Component |
| CN102749959A (en) * | 2011-04-18 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | Mainboard and server adopting same |
| CN102778933A (en) * | 2011-05-13 | 2012-11-14 | 鸿富锦精密工业（深圳）有限公司 | Computer case and hard disk module thereof |
| CN102880527A (en) * | 2011-07-13 | 2013-01-16 | 英业达股份有限公司 | Data recovery method of baseboard management controller |
-
2013
- 2013-03-13 CN CN201310079448.2A patent/CN104049679B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050289263A1 (en) * | 2004-06-24 | 2005-12-29 | Dell Products L.P. | System and method of SCSI and SAS hardware validation |
| TW200601055A (en) * | 2004-06-24 | 2006-01-01 | Dell Products Lp | System and method of scsi and sas hardware validation |
| US20100064164A1 (en) * | 2008-09-09 | 2010-03-11 | International Business Machines Corporation | Autonomic Component Service State Management for a Multiple Function Component |
| CN102749959A (en) * | 2011-04-18 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | Mainboard and server adopting same |
| CN102778933A (en) * | 2011-05-13 | 2012-11-14 | 鸿富锦精密工业（深圳）有限公司 | Computer case and hard disk module thereof |
| CN102880527A (en) * | 2011-07-13 | 2013-01-16 | 英业达股份有限公司 | Data recovery method of baseboard management controller |
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| Publication number | Publication date |
|---|---|
| CN104049679B (en) | 2017-08-04 |
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Effective date of registration: 20180209 Address after: Haiyun street, Tianjin economic and Technological Development Zone No. 80 Patentee after: Hongfujin Precision Electronics (Tianjin) Co., Ltd. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Co-patentee before: Hon Hai Precision Industry Co., Ltd. Patentee before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. |
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Effective date of registration: 20201225 Address after: Building 2, No. 3, Fuqian Road, Hailing District, Taizhou City, Jiangsu Province Patentee after: Taizhou Haitong Asset Management Co., Ltd Address before: No. 80 Haiyun Street, Tianjin Economic and Technological Development Zone, 300457 Patentee before: HONGFUJIN PRECISION ELECTRONICS (TIANJIN) Co.,Ltd. |
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