CN102566941B - Method for recognizing serial advanced technology attachment (SATA) hard disk through serial attached SCSI (SAS) hard disk expander - Google Patents
Method for recognizing serial advanced technology attachment (SATA) hard disk through serial attached SCSI (SAS) hard disk expander Download PDFInfo
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- CN102566941B CN102566941B CN201110434768.6A CN201110434768A CN102566941B CN 102566941 B CN102566941 B CN 102566941B CN 201110434768 A CN201110434768 A CN 201110434768A CN 102566941 B CN102566941 B CN 102566941B
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Abstract
The invention provides a method for recognizing a serial advanced technology attachment (SATA) hard disk through a serial attached SCSI (SAS) hard disk expander, which includes steps of: A judging whether a physical passage for connecting the hard disk is normal and whether the physical passage is connected with the hard disk, and executing step B if yes; B judging type of the hard disk connected with the physical passage, executing step C if the hard disk is an SAS hard disk and executing step D if the hard disk is an SATA hard disk; C recognizing relative information of the SAS hard disk according to the prior art and finishing the process; and D setting speed configuration information of the SATA hard disk to be 3 Gbps.
Description
Technical field
The present invention relates to hard disc of computer technical field of memory, relate in particular to a kind of method of SAS hard disk extender identification SATA hard disk.
Background technology
Serial Attached SCSI (SAS) (SAS), small computer system interface (SCSI of new generation, SmallComputer System Interface) technology, and Serial Advanced Technology Attachment (SATA, SerialAdvanced Technology Attachment) interface is identical, be all to adopt serial technology to obtain higher transmission speed, and improve inner space etc. by shortening tie line.SAS is the new interfaces that parallel scsi interface is developed afterwards.The design of this interface is usefulness, availability and the extendibility in order to improve storage system, and provides and the compatibility of SATA hard disk.
The interfacing of SAS can backward compatible SATA.Interface standard, SATA is a substandard of SAS, and therefore SAS controller can directly manipulate SATA hard disk.Due to the compatibility of SAS system, make user can use the hard disk of distinct interface to meet the demand of types of applications on capacity or in usefulness, therefore in the time expanding storage system, have more elasticity, allow memory device bring into play maximum returns of investment.
In the hard disk extender (expander) of the SAS interface that is 6Gbps at existing supporting rate, be that the SAS hard disk support of 6Gbps interface is very stable to primary supporting rate.But to be that the SAS interface of 3Gbps turns the SATA hard disk of SATA interface card extender not too compatible for being mounted with speed, often hard disk auto negotiation is become to the SATA hard disk of speed 1.5Gbps, cause the decline of performance.
Summary of the invention
The invention provides the method for a kind of SAS hard disk extender identification SATA hard disk, can be that the SATA hard disk that the SAS interface of 3Gbps turns SATA interface card extender is identified as the SATA hard disk that speed is 3Gbps by being mounted with speed.
The embodiment of the present invention provides a kind of method of SAS hard disk extender identification SATA hard disk, comprises the steps:
Whether A, judgement have connected hard disk in normal and physical channel for the physical channel that connects hard disk, if so, perform step B;
B, judge physical channel connect hard disk type, if SAS hard disk, execution step C, if SATA hard disk, execution step D;
C, identify the relevant information of this SAS hard disk process ends according to prior art mode;
The rate configuration information of D, this SATA hard disk is set to 3Gbps.
Preferably, after step D, further comprise:
The broadcast singal that E, setting comprise disk state change information, configuration sends the process of broadcast, and described process sends to broadcast singal the controller of this SAS hard disk extender.
Preferably, after step e, further comprise:
Judge whether and direct-connected other SAS hard disk extenders of this SAS hard disk extender, if so, this broadcast message has been sent to the controller of described other SAS hard disk extenders.
As can be seen from the above technical solutions, improve as follows for SAS hard disk extender:
Whether the hard disk that 1, identification is connected on this extender is SATA hard disk, and in the time identifying SATA hard disk, the maximum rate of SATA hard disk is set to 3Gbps;
2, there will be to fall dish for operating hard disk, while extracting this type of fortuitous event, add a special simulation hot plug processing for SATA hard disk, to realize the compatibility of same SAS hard disk.
Brief description of the drawings
The SAS hard disk extender that Fig. 1 provides for the embodiment of the present invention is identified the method flow of SATA hard disk.
Embodiment
The present invention program improves as follows for SAS hard disk extender:
Whether the hard disk that 1, identification is connected on this extender is SATA hard disk, and in the time identifying SATA hard disk, the maximum rate of SATA hard disk is set to 3Gbps;
2, there will be to fall dish for operating hard disk, while extracting this type of fortuitous event, add a special simulation hot plug processing for SATA hard disk, to realize the compatibility of same SAS hard disk.
For making know-why, advantage and the technique effect of technical solution of the present invention clearer, below by specific embodiment, the present invention program is described in detail.
The SAS hard disk extender that Fig. 1 provides for the embodiment of the present invention is identified the method flow of SATA hard disk, comprises the steps:
Step 101: whether judgement has connected hard disk in normal and physical channel for the physical channel that connects hard disk, if execution step 102.Otherwise, continue to carry out this step.
Step 102: judge the hard disk type that physical channel connects, if SAS hard disk, execution step 103, if SATA hard disk, execution step 104.
Step 103: identify the relevant information of this SAS hard disk according to prior art mode, and process ends.
Step 104: the rate configuration information of this SATA hard disk is set to 3Gbps.
Step 105: the broadcast singal that comprises disk state change information is set, and configuration sends the process of broadcast, and described process sends to broadcast singal the controller of this SAS hard disk extender.
Step 106: judged whether and direct-connected other SAS hard disk extenders of this SAS hard disk extender, if so, this broadcast message has been sent to the controller of described other SAS hard disk extenders.
Wherein, step 105-106 is simulation hot plug process, and its effect is to make SATA hard disk equally support hot plug with SAS hard disk.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (2)
1. a method for system for serial small computer interface SAS hard disk extender identification Serial Advanced Technology Attachment SATA hard disk, is characterized in that, comprises the steps:
Whether A, judgement have connected hard disk in normal and physical channel for the physical channel that connects hard disk, if so, perform step B;
B, judge physical channel connect hard disk type, if SAS hard disk, execution step C, if SATA hard disk, execution step D;
C, identify the relevant information of this SAS hard disk process ends according to prior art mode;
The rate configuration information of D, this SATA hard disk is set to 3Gbps;
The broadcast singal that E, setting comprise disk state change information, configuration sends the process of broadcast, and described process sends to broadcast singal the controller of this SAS hard disk extender.
2. method according to claim 1, is characterized in that, after step e, further comprises:
Judge whether and direct-connected other SAS hard disk extenders of this SAS hard disk extender, if so, this broadcast message has been sent to the controller of described other SAS hard disk extenders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110434768.6A CN102566941B (en) | 2011-12-22 | 2011-12-22 | Method for recognizing serial advanced technology attachment (SATA) hard disk through serial attached SCSI (SAS) hard disk expander |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110434768.6A CN102566941B (en) | 2011-12-22 | 2011-12-22 | Method for recognizing serial advanced technology attachment (SATA) hard disk through serial attached SCSI (SAS) hard disk expander |
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| CN102566941A CN102566941A (en) | 2012-07-11 |
| CN102566941B true CN102566941B (en) | 2014-12-10 |
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| CN201110434768.6A Active CN102566941B (en) | 2011-12-22 | 2011-12-22 | Method for recognizing serial advanced technology attachment (SATA) hard disk through serial attached SCSI (SAS) hard disk expander |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914420B (en) * | 2013-01-04 | 2016-12-28 | 中兴通讯股份有限公司 | SATA speed auto-negotiation method based on third party PHY and device |
| CN103970636A (en) * | 2013-01-30 | 2014-08-06 | 昆达电脑科技(昆山)有限公司 | SAS (Serial Attached SCSI) channel detection system |
| CN105868086B (en) * | 2016-03-21 | 2019-03-29 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN108804218B (en) * | 2017-04-28 | 2021-04-06 | 深圳中电长城信息安全系统有限公司 | Hard disk allocation method and system |
| CN107291640B (en) * | 2017-06-30 | 2021-01-12 | 苏州浪潮智能科技有限公司 | Data transmission method and device based on SAS technology |
| CN110928814A (en) * | 2019-11-20 | 2020-03-27 | 北京安兔兔科技有限公司 | Method and device for detecting transmission abnormality of serial hard disk and electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101627376A (en) * | 2006-10-05 | 2010-01-13 | Lsi公司 | Needing to be used for the mutual apparatus and method of improved SATA equipment of SAS extender |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101627376A (en) * | 2006-10-05 | 2010-01-13 | Lsi公司 | Needing to be used for the mutual apparatus and method of improved SATA equipment of SAS extender |
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