CN104199751A - System identification method of backup redundant hard disk in blade servers - Google Patents
System identification method of backup redundant hard disk in blade servers Download PDFInfo
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- CN104199751A CN104199751A CN201410426103.4A CN201410426103A CN104199751A CN 104199751 A CN104199751 A CN 104199751A CN 201410426103 A CN201410426103 A CN 201410426103A CN 104199751 A CN104199751 A CN 104199751A
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Abstract
The invention discloses a system identification method of a backup redundant hard disk in blade servers, and belongs to the technical field of data exchange in blade servers. The system identification method comprises the following steps that one host hard disk is assigned as the redundant hard disk, two blade servers are used as a set and share the redundant hard disk, and host processors of the two blade servers are connected to the redundant hard disk; one blade server sends working state signals to the other blade server and receives working state signals sent by the other blade server at the same time; the two blade servers judge whether working states of the opposite sides are normal; if the working state of the host hard disk of one blade server is abnormal, the other blade server is hooked to the redundant hard disk. By means of the system identification method, each blade server can exchange data with the redundant hard disk, and it is guaranteed that when the host hard disk of one blade server fails, a system can still normally work.
Description
Technical field
The present invention relates to a kind of data in blade server switching technology field, specifically the system identification method of standby redundancy hard disk in a kind of blade server.
Background technology
Blade server refers in the rack cabinet of calibrated altitude server unit that can the multiple cassettes of plug-in mounting, realizes high available and high density.Each piece " blade " is exactly in fact a block system mainboard.They can, by the operating system of " plate carries " hard disk startup oneself, as Windows NT/2000, Linux etc., be similar to one by one independently server, and they can start by local hard drive oneself operating system.Under this pattern, the system of each piece motherboard operation oneself, serves the different user group of appointment.
At present, people have exceeded the concern to data memory rate to the concern of problem of data safety.Particularly, in military industry field, data storage and problem of data safety are particularly important, and human and material resources and financial resources that every execution one subtask spends are all quite huge, and the data message therefore obtaining in task process is also very precious.If can not be appropriate these information securities preserving, loss will be difficult to estimate, and even can cause the failure of whole task.
Summary of the invention
Technical assignment of the present invention is for above weak point, a kind of method that realizes each blade server and can carry out with redundancy hard disk exchanges data is provided, when the host hard drive of guaranteeing a blade server breaks down, the system identification method of standby redundancy hard disk in a kind of blade server that system still can normally be worked.
The technical solution adopted for the present invention to solve the technical problems is:
In blade server, a system identification method for standby redundancy hard disk, comprises the steps:
(1), specifying a host hard drive is redundancy hard disk;
(2), two blade servers are one group, share a redundancy hard disk, the SATA signal of the host-processor of two blade servers, all, after buffer register strengthens, enters SATA 2:1 and switches chip, then be connected to redundancy hard disk;
(3), self host-processor of blade server can communicate with the host hard drive of self, by the host-processor of self, the host hard drive of self can carry out exchanges data with redundancy hard disk;
(4), blade server sends self working state signal to another blade server, also receives the working state signal that the other side sends simultaneously;
(5), two blade servers judge mutually the other side whether duty are normal;
(6) if a side host hard drive working state abnormal detected, be mounted on redundancy hard disk by the other side.
Two blade servers are respectively blade server A and blade server B, blade server A and blade server B are by CHSEL signal, carry out bus selection, when setting CHSEL signal is high level, redundancy hard disk gating is mounted on the host-processor of blade server A; When setting CHSEL signal is low level, redundancy hard disk gating is mounted on the host-processor of blade server B.
The host-processor of blade server is 80C51 single-chip microcomputer.
In a kind of blade server of the present invention, compared to the prior art the system identification method of standby redundancy hard disk, has the following advantages:
1, realize each blade server and can carry out with redundancy hard disk the method for exchanges data, when the host hard drive of guaranteeing a blade server breaks down, system still can normally be worked;
2, adopt redundancy hard disk backup method, articulate at each blade server on the basis of a system disk, increase redundancy hard disk, select signal to ensure that blade server recognizes redundancy hard disk and can carry out data communication, has ensured the validity and reliability of data transmission by dish.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further described.
Accompanying drawing 1 is that the hardware configuration of the system identification method of standby redundancy hard disk in a kind of blade server connects block diagram.
Accompanying drawing 2 is the workflow diagram of the system identification method of standby redundancy hard disk in a kind of blade server.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1:
In a kind of blade server of the present invention, the system identification method of standby redundancy hard disk, comprises the steps:
(1), specifying a host hard drive is redundancy hard disk;
(2), two blade servers are one group, share a redundancy hard disk, the SATA signal of the host-processor of two blade servers, all, after buffer register strengthens, enters SATA 2:1 and switches chip, then be connected to redundancy hard disk;
(3), self host-processor of blade server can communicate with the host hard drive of self, by the host-processor of self, the host hard drive of self can carry out exchanges data with redundancy hard disk;
(4), blade server sends self working state signal to another blade server, also receives the working state signal that the other side sends simultaneously;
(5), two blade servers judge mutually the other side whether duty are normal;
(6) if a side host hard drive working state abnormal detected, be mounted on redundancy hard disk by the other side.
Two blade servers are respectively blade server A and blade server B, blade server A and blade server B are by CHSEL signal, carry out bus selection, when setting CHSEL signal is high level, redundancy hard disk gating is mounted on the host-processor of blade server A; When setting CHSEL signal is low level, redundancy hard disk gating is mounted on the host-processor of blade server B.
Embodiment 2:
In a kind of blade server of the present invention, the system identification method of standby redundancy hard disk, comprises the steps:
(1), specifying a host hard drive is redundancy hard disk;
(2), two blade servers are one group, share a redundancy hard disk, the SATA signal of the host-processor of two blade servers, all, after buffer register strengthens, enters SATA 2:1 and switches chip, then be connected to redundancy hard disk;
(3), self host-processor of blade server can communicate with the host hard drive of self, by the host-processor of self, the host hard drive of self can carry out exchanges data with redundancy hard disk;
(4), blade server sends self working state signal to another blade server, also receives the working state signal that the other side sends simultaneously;
(5), two blade servers judge mutually the other side whether duty are normal;
(6) if a side host hard drive working state abnormal detected, be mounted on redundancy hard disk by the other side.
Software carries out program design taking 80C51 as single-chip microcomputer object, uses the clock frequency of 12MHz.Constant OK, REQ, ACK and NACK represent that respectively each blade server duty is normal, Backup Data sends request, the character constant of affirmative acknowledgement and negative response information.Global variable timeout is for setting the timeout interval taking millisecond as unit, and Update, CpuStatus and Failure represent whether Backup Data upgrades, the zone bit variable whether blade server state and blade server break down.Timer 0 is programmed for working method 1, produces the Interruption every 1ms, and each interruption subtracts 1 by the value of global variable timeout, and reducing at 0 o'clock is timeing closing device 0; Timer 1 is programmed for working method 2, and as serial port Baud rate generator, baud rate is programmed for 15.625K; Timer 2 works in the timing mode of automatic refitting, produces the Interruption every 50ms.
All program modules that need software timeout mechanism or delay function all can be after the value of setting timeout opening timing device 0, and by judging that whether the value of this variable is zero to realize timing function.Each interruption, the interrupt service routine of blade server all sends and represents the normal OK character of self duty, also receive the OK character that the other side unit sends simultaneously, if continuous three times interrupt all failing reception, this unit thinks that the other side unit is out of order, and the global variable Failure that represents the other side's cell operation state is set to constant Yes, CHSEL is configured; Otherwise, be set to No.
Above-mentioned embodiment is only concrete case of the present invention; scope of patent protection of the present invention includes but not limited to above-mentioned embodiment; in any a kind of blade server according to the invention, suitable variation or replacements claims of the system identification method of standby redundancy hard disk and that any person of an ordinary skill in the technical field does it, all should fall into scope of patent protection of the present invention.
Claims (3)
1. a system identification method for standby redundancy hard disk in blade server, is characterized in that comprising the steps:
(1), specifying a host hard drive is redundancy hard disk;
(2), two blade servers are one group, share a redundancy hard disk, the SATA signal of the host-processor of two blade servers, all, after buffer register strengthens, enters SATA 2:1 and switches chip, then be connected to redundancy hard disk;
(3), self host-processor of blade server can communicate with the host hard drive of self, by the host-processor of self, the host hard drive of self can carry out exchanges data with redundancy hard disk;
(4), blade server sends self working state signal to another blade server, also receives the working state signal that the other side sends simultaneously;
(5), two blade servers judge mutually the other side whether duty are normal;
(6) if a side host hard drive working state abnormal detected, be mounted on redundancy hard disk by the other side.
2. the system identification method of standby redundancy hard disk in a kind of blade server according to claim 1, it is characterized in that two blade servers are respectively blade server A and blade server B, blade server A and blade server B are by CHSEL signal, carry out bus selection, when setting CHSEL signal is high level, redundancy hard disk gating is mounted on the host-processor of blade server A; When setting CHSEL signal is low level, redundancy hard disk gating is mounted on the host-processor of blade server B.
3. the system identification method of standby redundancy hard disk in a kind of blade server according to claim 1, the host-processor that it is characterized in that blade server is 80C51 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410426103.4A CN104199751A (en) | 2014-08-27 | 2014-08-27 | System identification method of backup redundant hard disk in blade servers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410426103.4A CN104199751A (en) | 2014-08-27 | 2014-08-27 | System identification method of backup redundant hard disk in blade servers |
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| CN104199751A true CN104199751A (en) | 2014-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113326069A (en) * | 2020-02-28 | 2021-08-31 | 广东龙芯中科电子科技有限公司 | Operating system starting method and device, electronic equipment and storage medium |
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| CN1321004A (en) * | 2000-04-25 | 2001-11-07 | 华为技术有限公司 | Method and equipment for swapping active with standby switches |
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| US7933967B2 (en) * | 2003-06-25 | 2011-04-26 | International Business Machines Corporation | Simultaneous sharing of storage drives on blade center |
| US20090172125A1 (en) * | 2007-12-28 | 2009-07-02 | Mrigank Shekhar | Method and system for migrating a computer environment across blade servers |
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| CN113326069A (en) * | 2020-02-28 | 2021-08-31 | 广东龙芯中科电子科技有限公司 | Operating system starting method and device, electronic equipment and storage medium |
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Application publication date: 20141210 |