WO2016078322A1

WO2016078322A1 - Io channel allocation method and device

Info

Publication number: WO2016078322A1
Application number: PCT/CN2015/077093
Authority: WO
Inventors: 胡上贺; 陈明; 王小军
Original assignee: 华为技术有限公司
Priority date: 2014-11-21
Filing date: 2015-04-21
Publication date: 2016-05-26
Also published as: CN104461968A; CN104461968B

Abstract

An IO channel allocation method and device. The method comprises: a first controller reads and loads a first configuration file in a memory, wherein the first configuration file comprises link connection information of exchange interfaces of the first controller (S201); configure, according to the first configuration file, the exchange interface of the first controller adjacent to a second controller as a mirror interface (S202); and establish a link channel between the mirror interface of the first controller and a mirror interface of the second controller, wherein the second controller configures, according to a second configuration file, an exchange interface adjacent to the first controller as the mirror interface (S203). By using the method and the device, transmission paths of a mirror channel are reduced, and the reliability of data transmission is improved.

Description

IO channel allocation method and device

Technical field

The present invention relates to the field of electronic technologies, and in particular, to an IO (Input/Output) channel allocation method and apparatus.

Background technique

The storage controller generally includes at least two controllers, each of which can insert multiple IO cards and establish a connection with an external application server through the IO card. The first controller of the at least two controllers and the second controller adjacent to the first controller back up the respective cache data through the mirror channel, so that when the first controller fails, the second control The data is saved for the data that is not written to the hard disk in the first controller in time. The IO cards that are respectively linked by the two controllers are connected to the same application server through the switch to form a multi-path networking. When a path fails, the application server can switch the current service to another path to protect business continuity. As shown in Figure 1, the IO card, backplane, and controller form a complete storage hardware system.

In the prior art solution, since the hardware design of each controller and the configuration files stored in each controller are the same, only a specific switching interface in each controller can be configured as a mirror interface, thereby Each controller establishes a link channel through a mirrored interface. For example, as shown in Figure 1, the switching interface P3 of Switch B in controller A can only establish a link channel with the switching interface P3 of Switch B in controller B. The solution has the following disadvantages: First, the transmission path of the mirror channel is too long, resulting in excessive attenuation of the link transmission rate. Second, the link channel of the mirror interface intersects with the link channel of the IO card, which reduces data transmission. reliability.

Summary of the invention

The invention provides an IO channel allocation method and device. The transmission path of the mirror channel can be reduced to improve the reliability of data transmission.

A first aspect of the present invention provides an IO channel allocation method, including:

The first controller reads and loads a first configuration file in the memory, where the first configuration file includes link connection information of the switching interface of the first controller;

According to the first configuration file, the intersection of the second controller in the first controller The interface is configured as a mirrored interface.

Establishing a link channel between the mirror interface in the first controller and a mirror interface in the second controller, wherein the second controller is adjacent to the first controller according to the second configuration file The switch interface is configured as a mirrored interface.

In a first possible implementation manner of the first aspect, after the reading and loading the first configuration file that is written into the memory, the method further includes:

According to the first configuration file, the target switching interface in the other switching interfaces establishes a link channel with the IO card adjacent to the target switching interface.

In a second possible implementation manner of the first aspect, after the reading and loading the first configuration file that is written into the memory, the method further includes:

In conjunction with the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the reading the slot identification information on the backplane to determine whether the first controller is After being disposed on the backboard, the method further includes:

If the slot identification information on the backplane fails to be read, a warning prompt is issued.

A second aspect of the present invention provides an IO channel distribution apparatus, including:

a file loading module, configured to read and load a first configuration file that is written into the memory, where the first configuration file includes link connection information of the switching interface of the first controller;

An interface configuration module, configured to configure a switching interface of the first controller in the first controller as a mirroring interface;

a link connection module, configured to establish a link channel between the mirror interface in the first controller and a mirror interface in the second controller, where the second controller according to the second configuration file The switching interface adjacent to the first controller is configured as a mirroring interface.

In a first possible implementation manner of the second aspect, the link connection module is further configured to, according to the first configuration file, a target switching interface in another switching interface and an IO adjacent to the target switching interface. The card establishes a link channel.

In a second possible implementation manner of the second aspect, the device further includes:

And an information reading module, configured to read slot identification information on the backplane to determine whether the first controller is electrically connected to the backboard.

With reference to the second possible implementation of the second aspect, in a third possible implementation manner of the second aspect, the device further includes:

The information reading module is further configured to issue a warning prompt if the slot identification information on the backboard fails to be read.

A third aspect of the present invention provides an IO channel allocation apparatus, the apparatus comprising a network interface, a memory, and a processor, wherein the memory stores a set of program codes, and the processor is configured to call program code stored in the memory, for Do the following:

And configuring, according to the first configuration file, a switching interface of the first controller that is adjacent to the second controller as a mirroring interface;

In the embodiment of the present invention, the first controller first reads and loads the first configuration file in the memory, where the first configuration file includes link connection information of the switching interface of the first controller; and then according to the first configuration file, The switching interface of the controller adjacent to the second controller is configured as a mirroring interface; finally, the mirroring interface in the first controller establishes a link channel with the mirroring interface in the second controller, wherein the second controller is configured according to the The second configuration file configures the switching interface adjacent to the first controller as a mirroring interface. Therefore, the transmission path of the mirroring channel is reduced, so that the link channel of the mirroring interface does not cross the link channel of the IO card, thereby improving the reliability of data transmission.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic diagram of an IO channel allocation method in a prior art solution provided by the present invention;

2 is a flow chart of a first embodiment of an IO channel allocation method proposed by the present invention;

3 is a flow chart of another embodiment of an IO channel allocation method proposed by the present invention;

4A is a first schematic diagram showing an IO channel allocation method according to an embodiment of the present invention;

4B is a second schematic diagram of an IO channel allocation method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an IO channel allocation apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural view of another embodiment of an IO channel distribution device according to the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Please refer to FIG. 2. FIG. 2 is a flowchart of a first embodiment of an IO channel allocation method provided by the present invention. As shown, the IO channel allocation method includes:

S201. The first controller reads and loads a first configuration file that is written into the memory, where the first configuration file includes link connection information of the switching interface of the first controller.

In a specific implementation, the user can pre-write the configuration files corresponding to each controller, and then program the configuration files into the respective memories. After the device is started, each controller loads the configuration file separately. Wherein, the device includes at least two controllers, a backboard and a plurality of IO cards. The at least two controllers are respectively disposed on the backplane, and the at least two controllers respectively include a plurality of switch interfaces. The plurality of switch interfaces are respectively disposed on the first side of the backboard, and the plurality of IO cards are respectively disposed side by side on the backplane. The second side of the first side is opposite the second side. The first controller further includes a memory, the memory is connected to the switch interface, the memory is used to store the first configuration file, and the memory may be an E2PROM (Electrically Erasable Programmable Read-Only Memory), the first controller It also includes a management module and a CPU (Central Processing Unit) processing module.

S202. Configure, according to the first configuration file, a switching interface of the first controller that is adjacent to the second controller as a mirroring interface.

For example, as shown in FIG. 4A, the first controller includes a P0-Pn switching interface, the second controller also includes switching interfaces P0-Pn, and the second controller is located at a right adjacent position of the first controller. First A controller configures the switch interface Pn in the first controller as a mirror port according to the first configuration file, and the second controller configures the switch interface P0 in the second controller as a mirror port according to the second configuration file. As shown in FIG. 4B, the first controller includes switching interfaces P0-Pn, the second controller also includes switching interfaces P0-Pn, and the second controller is located at a position adjacent to the left side of the first controller, and the first controller is configured according to the first A configuration file configures the switch interface P0 in the first controller as a mirror port, and the second controller configures the switch interface Pn in the second controller as a mirror port according to the second configuration file.

S203. Establish a link channel between the mirroring interface in the first controller and a mirroring interface in the second controller, where the second controller is adjacent to the first according to the second configuration file. The switch interface of the controller is configured as a mirror interface.

Optionally, according to the first configuration file, the target switching interface in the other switching interface establishes a link channel with the IO card adjacent to the target switching interface.

For example, as shown in FIG. 4A, the second controller is located at a right adjacent position of the first controller, and may establish a link channel between the mirror interface Pn in the first controller and the mirror interface P0 in the second controller, and The switch interfaces P0 to Pn-1 in the first controller are respectively associated with the IO cards A1 to An to establish a link channel. As shown in FIG. 4B, the second controller is located at a position adjacent to the left side of the first controller, and may establish a link channel between the mirror interface P0 in the first controller and the mirror interface Pn in the second controller, and The switching interfaces P1 to Pn in a controller respectively establish a link channel corresponding to the IO cards A1 to An.

In the embodiment of the present invention, first, the first controller reads and loads the first configuration file in the memory, where the first configuration file includes link connection information of the switching interface of the first controller; and then according to the first configuration file, The switching interface of the first controller adjacent to the second controller is configured as a mirroring interface; finally, the mirroring interface in the first controller establishes a link channel with the mirroring interface in the second controller, wherein the second controller is configured according to The second configuration file configures the switching interface adjacent to the first controller as a mirroring interface. Therefore, the transmission path of the mirroring channel is reduced, so that the link channel of the mirroring interface does not cross the link channel of the IO card, thereby improving the reliability of data transmission.

Please refer to FIG. 3. FIG. 3 is a flowchart of a second embodiment of an IO channel allocation method provided by the present invention. As shown, the IO channel allocation method includes:

S301. Read slot identification information on the backplane to determine whether the first controller is powered. Connect to the backplane.

In the specific implementation, if the slot identification information on the backplane fails to be read, a warning prompt is issued; if the slot identification information on the backplane is successfully read, it is determined that the first controller is electrically connected to the backboard, and The switch interface in the first controller is configured. The backplane includes a plurality of slot identifier connectors, and the plurality of slot identifier connectors are respectively connected to the plurality of controllers, and the slot identifier connector is used by the controller to read the slot identifier information on the backplane.

S302. The first controller reads and loads the first configuration file in the memory, where the first configuration file includes link connection information of the switching interface of the first controller.

In a specific implementation, the user can pre-write the configuration files corresponding to each controller, and then program the configuration files into the respective memories. After the device is started, each controller loads the configuration file separately. Wherein, the device includes at least two controllers, a backboard and a plurality of IO cards. The at least two controllers are respectively disposed on the backplane, and the at least two controllers respectively include a plurality of switch interfaces. The plurality of switch interfaces are respectively disposed on the first side of the backboard, and the plurality of IO cards are respectively disposed side by side on the backplane. The second side of the first side is opposite the second side. The first controller further includes a memory connected to the switch interface, the memory is configured to store the first configuration file, the memory may be an E2PROM erasable programmable read only memory, and the first controller further includes a management module and a CPU processing module .

S303. Configure, according to the first configuration file, a switching interface of the first controller that is adjacent to the second controller as a mirroring interface.

For example, as shown in FIG. 4A, the first controller includes a P0-Pn switching interface, the second controller also includes switching interfaces P0-Pn, and the second controller is located at a right adjacent position of the first controller. The first controller configures the switch interface Pn in the first controller as a mirror port according to the first configuration file, and the second controller configures the switch interface P0 in the second controller as a mirror port according to the second configuration file. As shown in FIG. 4B, the first controller includes switching interfaces P0-Pn, the second controller also includes switching interfaces P0-Pn, and the second controller is located at a position adjacent to the left side of the first controller, and the first controller is configured according to the first A configuration file configures the switch interface P0 in the first controller as a mirror port, and the second controller configures the switch interface Pn in the second controller as a mirror port according to the second configuration file.

S304, establishing a link channel between the mirror interface in the first controller and a mirror interface in the second controller, where the second controller is adjacent to the second configuration file. The switching interface of the first controller is configured as a mirroring interface.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of an IO channel allocation apparatus according to an embodiment of the present invention. As shown in the figure, the IO channel allocation device in the embodiment of the present invention includes:

The file loading module 502 is configured to read and load a first configuration file that is written into the memory, where the first configuration file includes link connection information of the switching interface of the first controller.

In a specific implementation, the user can pre-write the configuration files corresponding to each controller, and then program the configuration files into the respective memories. After the device is started, each controller loads the configuration file separately. Wherein, the device includes at least two controllers, a backboard and a plurality of IO cards. The at least two controllers are respectively disposed on the backplane, and the at least two controllers respectively include a plurality of switch interfaces. The plurality of switch interfaces are respectively disposed on the first side of the backboard, and the plurality of IO cards are respectively disposed side by side on the backplane. The second side of the first side is opposite the second side. The first controller further includes a memory connected to the switch interface, the memory is configured to store the first configuration file, the memory may be an E2PROM erasable programmable read only memory, and the first controller further includes a management module and A CPU processing module.

The interface configuration module 503 is configured to configure a switching interface of the first controller that is adjacent to the second controller as a mirroring interface.

a link connection module 504, configured to establish a link channel between the mirror interface in the first controller and a mirror interface in the second controller, where the second controller is configured according to the second configuration file. The switch interface adjacent to the first controller is configured as a mirror interface.

Optionally, the link connection module 504 is further configured to establish a link channel between the target switch interface in the other switch interface and the IO card adjacent to the target switch interface according to the first configuration file.

Optionally, as shown in FIG. 5, the IO channel allocation apparatus may further include:

The information reading module 501 is configured to read slot identification information on the backplane to determine whether the first controller is electrically connected to the backplane.

In the specific implementation, if the slot identification information on the backplane fails to be read, a warning prompt is issued; if the slot identification information on the backplane is successfully read, it is determined that the first controller is electrically connected to the backboard, Configure the switch interface in the first controller. The backplane includes a plurality of slot identifier connectors, and the plurality of slot identifier connectors are respectively connected to the plurality of controllers, and the slot identifier connector is used by the controller to read the slot identifier information on the backplane.

FIG. 6 is a schematic structural view of another embodiment of an IO channel distribution device according to the present invention. As shown, the apparatus can include at least one processor 601, such as a CPU, at least one receiver 603, at least one memory 604, at least one transmitter 605, and at least one communication bus 602. Among them, the communication bus 602 is used to implement connection communication between these components. The receiver 603 and the transmitter 605 of the device in the embodiment of the present invention may be a wired sending port, or may be a wireless device, for example, including an antenna device, for performing signaling or data communication with other node devices. The memory 604 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory. The memory 604 can optionally also be at least one storage device located remotely from the aforementioned processor 601. A set of program codes is stored in the memory 604, and the processor is configured to call program code stored in the memory for performing the following operations:

It should be noted that, for the foregoing various method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention does not This is limited by the sequence of actions described, as some steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment can be referred to the related descriptions of other embodiments.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

The content downloading method and the related device and system provided by the embodiments of the present invention are described in detail above. The principles and implementation manners of the present invention are described in the specific examples. The description of the above embodiments is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for the person of ordinary skill in the art, according to the idea of the present invention, there are some changes in the specific embodiment and the scope of application. In summary, the content of the specification should not be understood. To limit the invention.

Claims

An IO channel allocation method, the method comprising:

The first controller reads and loads a first configuration file in the memory, where the first configuration file includes link connection information of the switching interface of the first controller;

And configuring, according to the first configuration file, a switching interface of the first controller that is adjacent to the second controller as a mirroring interface;

Establishing a link channel between the mirror interface in the first controller and a mirror interface in the second controller, wherein the second controller is adjacent to the first controller according to the second configuration file The switch interface is configured as a mirrored interface.
The method of claim 1, wherein after the reading and loading the first configuration file written in the memory, the method further comprises:

According to the first configuration file, the target switching interface in the other switching interfaces establishes a link channel with the IO card adjacent to the target switching interface.
The method of claim 1, wherein before the reading and loading the first configuration file written in the memory, the method further comprises:

The slot identification information on the backplane is read to determine whether the first controller is electrically connected to the backplane.
The method of claim 3, wherein the reading the slot identification information on the backplane to determine whether the first controller is disposed on the backplane further comprises:

If the slot identification information on the backplane fails to be read, a warning prompt is issued.
An IO channel distribution device, characterized in that the device comprises:

a file loading module, configured to read and load a first configuration file that is written into the memory, where the first configuration file includes link connection information of the switching interface of the first controller;

An interface configuration module, configured to configure a switching interface of the first controller in the first controller as a mirroring interface;

a link connection module, configured to establish a link channel between the mirror interface in the first controller and a mirror interface in the second controller, where the second controller according to the second configuration file The switching interface adjacent to the first controller is configured as a mirroring interface.
The device of claim 5 wherein:

The link connection module is further configured to establish a link channel between the target switch interface in the other switch interface and the IO card adjacent to the target switch interface according to the first configuration file.
The device of claim 5, wherein the device further comprises:

And an information reading module, configured to read slot identification information on the backplane to determine whether the first controller is electrically connected to the backboard.
The device of claim 7 wherein:

The information reading module is further configured to issue a warning prompt if the slot identification information on the backboard fails to be read.
An IO channel allocation device, characterized in that the device comprises a network interface, a memory and a processor, wherein the memory stores a set of program codes, and the processor is configured to call program code stored in the memory for performing the following operations :

The first controller reads and loads a first configuration file in the memory, where the first configuration file includes link connection information of the switching interface of the first controller;

And configuring, according to the first configuration file, a switching interface of the first controller that is adjacent to the second controller as a mirroring interface;

Establishing a link channel between the mirror interface in the first controller and a mirror interface in the second controller, wherein the second controller is adjacent to the first controller according to the second configuration file The switch interface is configured as a mirrored interface.