CN110837443A - Backup method and backup system - Google Patents
Backup method and backup system Download PDFInfo
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- CN110837443A CN110837443A CN201810931750.9A CN201810931750A CN110837443A CN 110837443 A CN110837443 A CN 110837443A CN 201810931750 A CN201810931750 A CN 201810931750A CN 110837443 A CN110837443 A CN 110837443A
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- 230000002159 abnormal effect Effects 0.000 claims description 23
- 230000000737 periodic effect Effects 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000005856 abnormality Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2038—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant with a single idle spare processing component
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/325—Display of status information by lamps or LED's
Abstract
The invention provides a backup method, which comprises the following steps: the two control units are respectively operated in a master control mode and a slave mode; generating a health signal in the control unit of the master control mode; a corresponding logic operation unit judges whether the control unit normally operates according to the health signal; when the logic operation unit judges that the control unit operates abnormally, a first light emitting diode is controlled to emit light so as to indicate the position of the mainboard where the maintenance personnel generate the abnormality, and the control unit operating in the slave mode is informed in real time to change to operate in the master mode. Furthermore, the control right of the plurality of second light emitting diodes driven by the two logic operation units is changed from the original control unit to the control unit which is operated in the main control mode later, so that the effect of correctly controlling the lamp signals is realized.
Description
Technical Field
The present invention relates to a backup method and a backup system, and more particularly, to a backup method and a backup system for real-time notification and conversion.
Background
A conventional server system with a backup function includes a BackPlane (BP), a plurality of Motherboards (MB), a plurality of Light Emitting Diodes (LEDs) disposed on the BackPlane, and a plurality of System On Chip (SOC). Examples of the light signals of the leds correspond to the operating states of a plurality of disk drives, and each of the motherboards corresponds to each other, that is, the system chip disposed on one of the two opposing motherboards and the same system chip disposed on the other corresponding motherboard are the same, such as a Baseboard Management Controller (BMC), a chipset, or a Controller (Controller) of an SAS Expander (Expander). When the server system is started up and normally operates, the system chip arranged on one of the two corresponding mainboards operates in a Master Mode (Master Mode), and the system chip arranged on the other one operates in a Slave Mode (Slave Mode).
At this time, the two soc respectively disposed on the two corresponding motherboards coordinate with the master controller through a predetermined Protocol (Protocol) to control whether the leds disposed on the backplane emit light or not. When the system chip operating in the master mode has abnormal operation or failure, the conventional method switches the operation mode of the system chip operating in the slave mode originally on another motherboard corresponding to the motherboard having the system chip having abnormal operation or failure to the master mode through the predetermined protocol, and simultaneously switches the control right of the leds disposed on the backplane to be controlled by the system chip operating in the slave mode originally. However, because the system chip with abnormal operation or failure cannot control the operation mode of the motherboard due to failure, the motherboard with the system chip with abnormal operation or failure still operates in the master mode without switching to the slave mode, which may cause more abnormal operation of components, or cause the server system with backup function to be determined as having two motherboards operating in the master mode by mistake, which is a problem to be solved.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a backup method and a backup system for real-time notification and conversion.
To solve the above technical problems, the present invention provides a backup system, which is suitable for two first light emitting diodes and includes two main boards, two logic operation units, and two control units.
The two main boards are respectively provided with the two first light emitting diode devices. The two logic operation units are respectively arranged on the two mainboards and are respectively electrically connected with the two first light-emitting diodes so as to respectively control whether the two first light-emitting diodes emit light or not.
The two control units are respectively arranged on the two mainboards and are respectively electrically connected with the two logic operation units. Wherein each control unit executes a firmware, such that one of the two control units operates in a master mode and the other one operates in a slave mode.
When the control unit operating in the master mode executes the firmware, a health signal is generated. The logic operation unit receives the health signal from the control unit operating in the master control mode and determines whether the control unit is operating normally or abnormally.
When the logic operation unit judges that the control unit operating in the master mode abnormally operates, the logic operation unit controls the corresponding first light emitting diode to emit light and informs the control unit operating in the slave mode to operate in the master mode instead.
Preferably, the first light emitting diode is further adapted to electrically connect the plurality of first light emitting diodes of the two logical operation units. When the corresponding logic operation unit judges that the control unit operating in the main control mode operates normally, the logic operation unit also receives the control of the corresponding control unit to drive the second light-emitting diodes to emit light.
When the corresponding logic operation unit judges that the control unit operating in the master mode abnormally operates, the logic operation unit does not drive the second light-emitting diodes to emit light, and the control unit operating in the master mode is changed from the slave mode to control the corresponding logic operation unit so as to drive the second light-emitting diodes to emit light.
Preferably, the control unit that changes from the slave mode to the master mode also transmits a notification message via the internet and stores an exception record associated with the control unit that was operating in the master mode.
Preferably, when the control unit is operating normally, the health signal is a periodic signal having a logic value, and the logic value changes in each period.
Preferably, the health signal is a periodic pulse signal. When the logic operation unit judges that the logic value of the received health signal accords with the preset change in each preset time interval, the corresponding control unit is judged to normally operate. And when the logic operation unit judges that the logic value of the health signal does not accord with the preset change within a certain preset time interval, the corresponding control unit is judged to be abnormal in operation. The predetermined time interval is greater than or equal to the period of the health signal.
To solve the above technical problem, the present invention further provides a backup method, which is suitable for two first light emitting diodes, two logic operation units, and two control units. The two logic operation units are respectively and electrically connected with the two corresponding control units and the two corresponding first light-emitting diodes. The redundancy method comprises steps (a) to (d).
In step (a), executing a firmware by each control unit such that one of the two control units operates in a master mode and the other one operates in a slave mode.
In step (b), a health signal is generated when the control unit operating in the master mode executes the firmware.
In step (c), the corresponding logic operation unit receives the health signal from the control unit operating in the master control mode, and determines that the control unit is one of normal operation and abnormal operation.
In step (d), when the corresponding logic operation unit determines that the control unit operating in the master mode is abnormal, the logic operation unit controls the corresponding first light emitting diode to emit light, and notifies the control unit operating in the slave mode to operate in the master mode instead.
Preferably, the first light emitting diode is further adapted to electrically connect the plurality of first light emitting diodes of the two logical operation units. The redundancy method further comprises a step (e) of receiving the control of the corresponding control unit to drive the second light-emitting diodes to emit light when the corresponding logic operation unit judges that the control unit operating in the main control mode operates normally.
Preferably, in step (d), the logic operation unit does not drive the second light emitting diodes to emit light, and the control unit, which is changed from the slave mode to the master mode, controls the corresponding logic operation unit to drive the second light emitting diodes to emit light.
Preferably, in step (d), the control unit that is changed from the slave mode to the master mode further transmits a notification message via the internet, and stores an exception record associated with the control unit that was originally operating in the master mode.
Preferably, in step (b), when the control unit is operating normally, the health signal is a periodic signal having a logic value, and the logic value changes in each period.
Preferably, in step (b), the health signal is a periodic pulse signal. In step (c), when the logic operation unit determines that the logic value of the received health signal conforms to the predetermined variation within each predetermined time interval, it determines that the corresponding control unit is operating normally. When the logic operation unit judges that the logic value of the health signal does not conform to the preset change within a certain preset time interval, the corresponding control unit is judged to be abnormal in operation, and the preset time interval is greater than or equal to the period of the health signal.
Compared with the prior art, the backup method and the backup system provided by the invention can judge whether the control unit operating in the main control mode operates abnormally or not by the corresponding logic operation unit according to the health signal. When the operation of the control unit is abnormal, the corresponding logic operation unit can control the corresponding first light emitting diode to emit light so as to indicate the position of the corresponding abnormal mainboard, and more importantly, the logic operation unit can inform another control unit of changing to operate in the master control mode in real time so as to start a backup mechanism in real time. Furthermore, the corresponding logic operation unit does not drive the second light-emitting diodes to emit light at the same time, so that the other logic operation unit is controlled to drive the second light-emitting diodes to emit light to correctly display the operation state of the disk drive.
[ description of the drawings ]
FIG. 1 is a block diagram illustrating an embodiment of a backup system according to the present invention.
FIG. 2 is a flowchart illustrating steps of the backup method according to the present invention.
[ detailed description ] embodiments
Referring to fig. 1, an embodiment of the backup system of the present invention is suitable for two first leds 81 and 82, a backplane 6 and an led unit 9 disposed on the backplane 6, and includes two motherboards 71 and 72, two logic operation units 21 and 22, and two control units 11 and 12.
More specifically, a server system with a backup function includes a disk storage unit (not shown), a backplane 6, a plurality of first leds 81 and 82, the led unit 9 disposed on the backplane 6, and the backup system. The number of the first leds 81, 82 is the same as that of the motherboards 71, 72, and the first leds are respectively disposed on the motherboards 71, 72 or a chassis (not shown) on which the motherboards 71, 72 are disposed to indicate whether the corresponding control units 11, 12 are abnormal. The led unit 9 includes a plurality of second leds 91-98 for correspondingly displaying the operating status of a plurality of disk drives of the disk storage unit, for example, every two second leds correspond to the operating status of one disk drive, but not limited thereto.
The two logic operation units 21 and 22 are respectively disposed on the two main boards 71 and 72 and are respectively electrically connected to the two first light emitting diodes 81 and 82 to respectively control whether the two first light emitting diodes 81 and 82 emit light. Each logic operation unit 21, 22 is further electrically connected to each second LED 91-98 of the LED unit 9 and drives the second LEDs 91-98 to emit light, wherein the logic operation units 21, 22 are controlled to drive the second LEDs 91-98 to emit light.
The two control units 11, 12 are respectively disposed on the two mainboards 71, 72, and are respectively electrically connected to the two logic operation units 21, 22, and have the capability of respectively controlling the two logic operation units 21, 22 to drive the second light emitting diodes 91-98 to emit light.
The two control units 11 and 12 are, for example, a baseboard management controller, a Central Processing Unit (CPU), a south bridge chip, a chipset, a system on a chip, or a controller that is an SAS expander. Since the plurality of second leds included in the led unit 9 are used to indicate the operation status of the corresponding disk drives, the number of the plurality of second leds is increased due to the increase of the number of disk drives included in the disk storage unit of the server system in recent years, and the demand for the number of input/output pins of the control unit is also higher. However, the io pins of the bmc are limited by a certain number, the io pins of the chipset are also limited by a certain number, and the controller of the SAS expander also has the limitation of the io pins because it needs to meet the transmission requirement of the high-speed signal, such as the PCIe protocol. The two logic operation units 21, 22 are, for example, Complex Programmable Logic Devices (CPLDs), and the control units 11, 12 can control the light emission of a larger number of the second light emitting diodes 91 to 98 than the light emission of the light emitting diode unit 9 directly controlled by the input/output pins of the control units 11, 12 under the condition of limited number of input/output pins through the corresponding logic operation units 21, 22.
It should be additionally noted that: in this embodiment, the backup system of the server system includes two motherboards 71, 72, but in other embodiments, the backup system may include more than two motherboards, and the two motherboards are opposite to each other and respectively operate in the master mode and the slave mode. In addition, each of the control units 11, 12 receives a control signal from a cpu disposed on the same motherboard 71, 72, and controls or transmits the control signal to the corresponding logic operation unit 21, 22 to drive the second leds 91-98 to emit light. That is, how the second LEDs 91-98 are to emit light to display correct signals is determined by the CPU also operating in the master mode (i.e., on the same motherboard).
Referring to FIG. 2, the backup system implements a backup method and includes steps S1-S5.
In step S1, each control unit 11, 12 executes a firmware, such that one of the two control units 11, 12 operates in a master mode and the other one operates in a slave mode. For example, the control unit 11 operates in the master mode, and the control unit 12 operates in the slave mode, which is also described as an example, but not limited thereto.
In step S2, a health signal is generated when the control unit 11 operating in the master mode executes the firmware. When the control unit is operating normally, the health signal is a periodic signal having a logic value, and the logic value changes in each period. In this embodiment, the health signal is a periodic Pulse signal (Pulse), and the period of the Pulse signal is, for example, 1 second, but not limited thereto.
In step S3, the corresponding logic operation unit 21 receives the health signal from the control unit 11 operating in the master mode, and determines whether the control unit 11 is operating normally.
The following illustrates how the logic operation unit 21 determines whether the control unit 11 is operating normally according to the health signal. In the first aspect, when the logic operation unit 21 determines that the logic value of the received health signal conforms to the predetermined variation within each predetermined time interval, it determines that the corresponding control unit 11 is operating normally. When the logic operation unit 21 determines that the logic value of the health signal does not conform to the predetermined variation within a predetermined time interval, it determines that the corresponding control unit 11 is abnormal, which is different from normal operation. The predetermined time interval is greater than or equal to the period of the health signal, and the predetermined time interval is, for example, 1.5 seconds, i.e., greater than 1 second of the period.
In a second aspect, the health signal is a periodic signal and is also a trigger signal. When the logic operation unit 21 receives the logic change of the health signal in each cycle, the logic operation unit 21 writes a predetermined value into a register (not shown) included therein. The logic operation unit 21 determines that the predetermined value is read from the register within each predetermined time interval, determines that the corresponding control unit 11 is operating normally, and further writes another value into the register. When the logic operation unit 21 determines that the register reads a value different from the preset value within a predetermined time interval, it determines that the corresponding control unit 11 is abnormal.
In a third aspect, the health signal is a periodic signal and is also a trigger signal. When the logic operation unit 21 receives the logic change of the health signal in each cycle, the logic operation unit 21 increments (or decrements) the value of a Timer (Timer) included therein. The logic operation unit 21 determines that the value of the timer is changed from the value read in the previous time within each predetermined time interval, and then determines that the corresponding control unit 11 is operating normally. When the logic operation unit 21 determines that the value of the timer and the value read last time are not changed within a certain predetermined time interval, it determines that the corresponding control unit 11 is abnormal in operation.
In step S4, when the corresponding logic operation unit 21 determines that the control unit 11 operating in the master mode is operating normally, the logic operation unit 21 also receives the control of the corresponding control unit 11 to drive the second light emitting diodes 91-98 to emit light.
In step S5, when the corresponding logic operation unit 21 determines that the control unit 11 operating in the master mode is abnormal, the logic operation unit 21 controls the corresponding first light emitting diode 81 to emit light to indicate the motherboard 71 corresponding to the control unit 11 having the abnormal operation or failure, so as to help a maintenance worker quickly or easily find out a relevant position of the motherboard 71 corresponding to the control unit 11 having the abnormal operation or failure, and notify the control unit 12 operating in the slave mode to operate in the master mode instead, i.e., to start a backup function, so as to maintain normal operation of the server system.
Moreover, the logic operation unit 21 does not drive the second light emitting diodes 91-98 to emit light, and the control unit 12, which operates in the slave mode instead of the master mode, controls the corresponding logic operation unit 22 to drive the second light emitting diodes 91-98 to emit light.
In addition, the control unit 12 that is changed from the slave mode to the master mode also transmits a notification message via the internet to notify a system administrator of an event that the control unit 11 is out of order, and stores an exception record (Fail Log) related to the control unit 11 that is originally operated in the master mode, i.e., the control unit 11 that is out of order.
In summary, the corresponding logic operation unit determines whether the control unit operating in the master mode is abnormal according to the health signal. When the operation of the control unit is abnormal, the corresponding logic operation unit not only controls the corresponding first light emitting diode to emit light to indicate the corresponding abnormal mainboard position, but also can inform the other control unit to change to operate in the main control mode in real time to start the backup mechanism in real time, and simultaneously does not drive the second light emitting diodes to emit light, so that the other logic operation unit is controlled to drive the second light emitting diodes to emit light to correctly display the operation state of the disk drive, thereby really achieving the purpose of the invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A redundant system for two first light emitting diodes, comprising:
two main boards respectively providing the two first light emitting diodes;
the two logic operation units are respectively arranged on the two mainboards and are respectively electrically connected with the two first light-emitting diodes so as to respectively control whether the two first light-emitting diodes emit light or not; and
two control units respectively arranged on the two mainboards and respectively electrically connected with the two logic operation units, each control unit executes a firmware to make one of the two control units operate in a master control mode and the other one operate in a slave mode,
when the control unit operating in the main control mode executes the firmware, a health signal is generated, the logic operation unit receives the health signal from the control unit operating in the main control mode and judges that the control unit is one of normal operation and abnormal operation according to the health signal,
when the logic operation unit judges that the control unit operating in the master mode abnormally operates, the logic operation unit controls the corresponding first light emitting diode to emit light and informs the control unit operating in the slave mode to operate in the master mode instead.
2. The redundancy system of claim 1, further adapted to electrically connect the second light emitting diodes of the two logic operation units, wherein when the corresponding logic operation unit determines that the control unit operating in the master control mode is operating normally, the logic operation unit further receives the control of the corresponding control unit to drive the second light emitting diodes to emit light,
when the corresponding logic operation unit judges that the control unit operating in the master mode abnormally operates, the logic operation unit does not drive the second light-emitting diodes to emit light, and the control unit operating in the master mode is changed from the slave mode to control the corresponding logic operation unit so as to drive the second light-emitting diodes to emit light.
3. The redundancy system of claim 2, wherein the control unit changing from the slave mode to the master mode further transmits a notification message via the internet and stores an exception record associated with the control unit originally operating in the master mode.
4. The redundant system of claim 1 wherein the health signal is a periodic signal having a logic value that varies by a predetermined amount during each cycle when the control unit is operating normally.
5. The redundancy system of claim 4, wherein the health signal is a periodic pulse signal, and when the logic operation unit determines that the logic value of the received health signal is consistent with the predetermined variation within each predetermined time interval, the corresponding control unit is determined to operate normally, and when the logic operation unit determines that the logic value of the health signal is not consistent with the predetermined variation within a certain predetermined time interval, the corresponding control unit is determined to operate abnormally, wherein the predetermined time interval is greater than or equal to the period of the health signal.
6. A backup method is suitable for two first light emitting diodes, two logic operation units and two control units, wherein the two logic operation units are respectively and electrically connected with the corresponding two control units and the corresponding two first light emitting diodes, and the backup method comprises the following steps:
(a) executing a firmware by each control unit, so that one of the two control units operates in a master mode and the other one operates in a slave mode;
(b) generating a health signal when the control unit operating in the master mode executes the firmware;
(c) receiving the health signal from the control unit operating in the master control mode by the corresponding logic operation unit, and judging that the control unit is one of normal operation and abnormal operation according to the health signal; and
(d) when the corresponding logic operation unit judges that the control unit operating in the master mode abnormally operates, the logic operation unit controls the corresponding first light emitting diode to emit light and informs the control unit operating in the slave mode to operate in the master mode instead.
7. The redundancy method of claim 6, further comprising a step (e) of electrically connecting the second LEDs of the two logic operation units, wherein when the corresponding logic operation unit determines that the control unit operating in the master control mode is operating normally, the logic operation unit further receives the control of the corresponding control unit to drive the second LEDs to emit light,
in step (d), the logic operation unit does not drive the second light emitting diodes to emit light, and the control unit, which is operated in the slave mode instead of the master mode, controls the corresponding logic operation unit to drive the second light emitting diodes to emit light.
8. A method as recited in claim 7, wherein in step (d), the control unit operating in the slave mode to the master mode further transmits a notification message via the internet and stores an exception record associated with the control unit operating in the master mode.
9. A redundancy method according to claim 6 wherein in step (b) the health signal is a periodic signal having a logic value which varies by a predetermined amount during each period when the control unit is operating normally.
10. Backup method according to claim 9, characterized in that in step (b) the health signal is a periodic pulse signal; and
in step (c), when the logic operation unit determines that the logic value of the received health signal conforms to the predetermined variation within each predetermined time interval, it determines that the corresponding control unit operates normally, and when the logic operation unit determines that the logic value of the health signal does not conform to the predetermined variation within a certain predetermined time interval, it determines that the corresponding control unit operates abnormally, and the predetermined time interval is greater than or equal to the period of the health signal.
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| CN201810931750.9A CN110837443A (en) | 2018-08-16 | 2018-08-16 | Backup method and backup system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810931750.9A CN110837443A (en) | 2018-08-16 | 2018-08-16 | Backup method and backup system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1494228A (en) * | 2002-11-02 | 2004-05-05 | 华为技术有限公司 | Method of realizing single plate main and ready change over and its circuit |
| CN101378267A (en) * | 2007-08-31 | 2009-03-04 | 中兴通讯股份有限公司 | Primary and secondary switching device, and switching method using the same |
| CN106814643A (en) * | 2015-11-30 | 2017-06-09 | 北京铁路信号有限公司 | The control method and system of a kind of two-node cluster hot backup |
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2018
- 2018-08-16 CN CN201810931750.9A patent/CN110837443A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1494228A (en) * | 2002-11-02 | 2004-05-05 | 华为技术有限公司 | Method of realizing single plate main and ready change over and its circuit |
| CN101378267A (en) * | 2007-08-31 | 2009-03-04 | 中兴通讯股份有限公司 | Primary and secondary switching device, and switching method using the same |
| CN106814643A (en) * | 2015-11-30 | 2017-06-09 | 北京铁路信号有限公司 | The control method and system of a kind of two-node cluster hot backup |
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Application publication date: 20200225 |