CN107995077A - A kind of control method, system, equipment and a kind of server cluster - Google Patents

Abstract

The invention discloses a kind of server cluster, including：NVMe SSD；The interchanger being connected with the NVMe SSD；It is connected with the interchanger, for controlling the node of the NVMe SSD.Server cluster provided in an embodiment of the present invention, node passes through Switch control NVMe SSD, when user selects 1 × 4 pattern, two interfaces of NVMe SSD are controlled by two distinct interfaces of a node, when user selects 2 × 2 pattern, pass through two interfaces of two node control NVMe SSD.It can be seen from the above that server cluster provided in an embodiment of the present invention, realizes the conversion between two kinds of frameworks of PCIe, it is not necessary to change hardware configuration, improve transfer efficiency by interchanger.The invention also discloses a kind of control method, system, equipment and a kind of computer-readable recording medium, above-mentioned technique effect can be equally realized.

Description

A control method, system, device and server cluster

technical field

The present invention relates to the technical field of servers, and more specifically, to a control method, system, equipment, a server cluster, and a computer-readable storage medium.

Background technique

The full name of PCIe is PCI Express, which is a new generation of bus interface. Using the current popular point-to-point serial connection in the industry, compared with the shared parallel architecture of PCI and earlier computer buses, each device has its own dedicated connection, does not need to request bandwidth from the entire bus, and can increase the data transfer rate. To a very high frequency, to achieve high bandwidth that PCI cannot provide. The full name of NVMe is Non-Volatile Memory Express, which is a non-volatile memory standard.

In the prior art, in order to switch between the two transmission architectures of PCIe 1×4 and PCIe 2×2, hardware results need to be changed, and the user needs to disassemble the system. In addition, when PCIe is used for expansion, a multi-host design is required, resulting in the disadvantages of high manufacturing cost and low usage efficiency.

Therefore, how to improve the conversion efficiency between the two PCIe architectures is a problem to be solved by those skilled in the art.

Contents of the invention

The object of the present invention is to provide a control method, system, equipment, server cluster and a computer-readable storage medium, which improve the conversion efficiency between the two PCIe architectures.

To achieve the above purpose, an embodiment of the present invention provides a server cluster, including:

NVMe SSD;

A switch connected to the NVMe SSD;

It is connected with the switch and is used to control the node of the NVMe SSD.

Wherein, the first interface of the NVMe SSD is connected to the first switch, and the second interface of the NVMe SSD is connected to the second switch;

The first interface of the first node is connected to the first interface of the first switch, and the second interface of the first node is connected to the first interface of the second switch;

The first interface of the second node is connected to the second interface of the first switch, and the second interface of the second node is connected to the second interface of the second switch.

In order to achieve the above purpose, an embodiment of the present invention provides a control method, which is applied to the above server cluster, and the method includes:

When the current mode of the server cluster is in 1×4 mode, the first interface of the first node or the second node controls the first interface of the NVMe SSD through the first switch, and the first The node or the second interface of the second node controls the second interface of the NVMe SSD through the second switch;

When the current mode of the server cluster is in 2×2 mode, the first interface of the first node controls the first interface of the NVMe SSD through the first switch, and the second interface of the second node controls the first interface through the first switch. The second switch controls the second interface of the NVMe SSD.

Among them, also include:

The target mode of the server cluster selected by the user is received.

Wherein, after receiving the target mode of the server cluster selected by the user, it also includes:

judging whether the target mode is consistent with the current mode;

If not, switch the control mode of the server cluster to the target mode.

To achieve the above purpose, an embodiment of the present invention provides a control system, including:

A first control module, configured to control the first interface of the first node or the second node through the first switch to control the first interface of the NVMe SSD when the current mode of the server cluster is in the 1×4 mode. An interface, the second interface of the first node or the second node controls the second interface of the NVMe SSD through the second switch;

The second control module is configured to control the first interface of the NVMe SSD through the first switch on the first interface of the first node when the current mode of the server cluster is in the 2×2 mode, and the second The second interface of the node controls the second interface of the NVMe SSD through the second switch.

Among them, also include:

The receiving module is configured to receive the target mode of the server cluster selected by the user.

Among them, also include:

A judging module, configured to judge whether the target mode is consistent with the current mode;

A switching module, configured to switch the control mode of the server cluster to the target mode when the target mode is inconsistent with the current mode.

To achieve the above purpose, an embodiment of the present invention provides a control device, including:

memory for storing the control program;

A processor, configured to implement the steps of the above-mentioned control method when executing the control program.

To achieve the above object, an embodiment of the present invention provides a computer-readable storage medium, where a control program is stored on the computer-readable storage medium, and when the control program is executed by a processor, the above control method is implemented.

It can be seen from the above solution that a server cluster provided by an embodiment of the present invention includes: an NVMe SSD; a switch connected to the NVMe SSD; and a node connected to the switch for controlling the NVMe SSD.

In the server cluster provided by the embodiment of the present invention, the nodes control the NVMe SSD through the switch. When the user selects the 1×4 mode, the two interfaces of the NVMe SSD are controlled through two different interfaces of one node. When the user selects the 2×2 mode , to control the two interfaces of the NVMe SSD through two nodes. It can be seen that, the server cluster provided by the embodiment of the present invention implements the conversion between the two PCIe architectures through the switch, without changing the hardware structure, and improves the conversion efficiency. The invention also discloses a control method, system, equipment and a computer-readable storage medium, which can also achieve the above-mentioned technical effects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a structural diagram of a server cluster disclosed in an embodiment of the present invention;

FIG. 2 is a structural diagram of another server cluster disclosed by an embodiment of the present invention;

Fig. 3 is a flowchart of a control method disclosed in an embodiment of the present invention;

FIG. 4 is a structural diagram of a control method disclosed in an embodiment of the present invention in 1×4 mode;

FIG. 5 is a structural diagram of a control method disclosed in an embodiment of the present invention in 2×2 mode;

FIG. 6 is a structural diagram of a control system disclosed in an embodiment of the present invention;

Fig. 7 is a structural diagram of a control device disclosed by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The embodiment of the invention discloses a server cluster, which improves the conversion efficiency between two PCIe architectures.

Referring to FIG. 1, a structural diagram of a server cluster disclosed in an embodiment of the present invention, as shown in FIG. 1, includes:

NVMe SSD 101;

A switch 102 connected to the NVMe SSD;

It is connected with the switch and is used to control the node 103 of the NVMe SSD.

In the server cluster provided by the embodiment of the present invention, the nodes control the NVMe SSD through the switch. When the user selects the 1×4 mode, the two interfaces of the NVMe SSD are controlled through two different interfaces of one node. When the user selects the 2×2 mode , to control the two interfaces of the NVMe SSD through two nodes. It can be seen that, the server cluster provided by the embodiment of the present invention implements the conversion between the two PCIe architectures through the switch, without changing the hardware structure, and improves the conversion efficiency.

The embodiment of the present invention discloses a server cluster. Compared with the previous embodiment, this embodiment further explains and optimizes the technical solution. specific:

Referring to FIG. 2, another structural diagram of a server cluster provided by an embodiment of the present invention, as shown in FIG. 2, includes:

NVMe SSD 201;

A first switch 202 connected to the first interface of the NVMe SSD 201, a second switch 203 connected to the second interface of the NVMe SSD 201;

A first node 204 whose first interface is connected to the first interface of the first switch 202 and whose second interface is connected to the first interface of the second switch 203;

A second node 205 in which the first interface is connected to the second interface of the first switch 202 and the second interface is connected to the second interface of the second switch 203 .

In a specific implementation, [0:1] and [2:3] of the first node are connected to the first switch and the second switch respectively, and [3:2] and [1:0] of the second node are connected in the same way Connect to the first switch and the second switch. [0:1] of the NVMe SSD is connected to the first switch, and [2:3] of the NVMe SSD is connected to the second switch.

A control method provided by an embodiment of the present invention is introduced below. Referring to FIG. 3 , a flow chart of a control method disclosed by an embodiment of the present invention, as shown in FIG. 3 , includes:

S301: When the current mode of the server cluster is in 1×4 mode, the first interface of the first node or the second node controls the first interface of the NVMe SSD through the first switch, the The second interface of the first node or the second node controls the second interface of the NVMe SSD through the second switch;

In a specific implementation, when the user selects the current mode of the server cluster as 1×4 mode, and the first node controls the NVMe SSD, as shown in Figure 4, use the low-active state selection pins of the first switch and the second switch , the first switch switches to the first interface. In this case, [0:1] of the first node can control [0:1] of the NVMe SSD through the first switch. Similarly, at the same time, switch the second switch to the first interface, [2:3] of the first node can control [2:3] of NVMe SSD through the second switch, and realize [0:1] of the first node [2:3] controls [0:1][2:3] of NVMe SSD.

Correspondingly, when the user chooses to control the NVMe SSD by the second node, the first switch switches to the second interface by using the pins in the high active state of the first switch and the second switch. In this case, the second node [3:2] can control NVMe SSD [0:1] through the first switch. Similarly, at the same time, switch the second switch to the second interface, [1:0] of the second node can control [2:3] of NVMe SSD through the second switch, and realize [3:2] of the second node and [1:0] control [0:1][2:3] for NVMe SSD.

S302: When the current mode of the server cluster is in 2×2 mode, the first interface of the first node controls the first interface of the NVMe SSD through the first switch, and the second interface of the second node The second interface of the NVMe SSD is controlled by the second switch.

In a specific implementation, when the user selects the current mode of the server cluster as the 2×2 mode, the selection pin of the first switch is kept low, and the first switch is connected to the first interface of the first node, so that the [0 :1] [0:1] of the NVMe SSD can be controlled through the first switch. In addition, the second switch is in a high active state, and the second switch is connected to the second interface of the second node, so that [1:0] of the second node can control [2:3] of the NVMe SSD through the second switch.

In the control method provided by the embodiment of the present invention, the node controls the NVMe SSD through the switch. When the user selects the 1×4 mode, the two interfaces of the NVMe SSD are controlled through two different interfaces of a node. When the user selects the 2×2 mode , to control the two interfaces of the NVMe SSD through two nodes. It can be seen that, the server cluster provided by the embodiment of the present invention implements the conversion between the two PCIe architectures through the switch, without changing the hardware structure, and improves the conversion efficiency.

On the basis of the foregoing embodiments, as a preferred embodiment, it also includes:

The target mode of the server cluster selected by the user is received.

On the basis of the above embodiments, as a preferred implementation manner, after receiving the target mode of the server cluster selected by the user, it further includes:

judging whether the target mode is consistent with the current mode;

If not, switch the control mode of the server cluster to the target mode.

A control system provided by an embodiment of the present invention is introduced below, and a control system described below and a control method described above may refer to each other.

Referring to FIG. 6, a structural diagram of a control system provided by an embodiment of the present invention, as shown in FIG. 6, includes:

The first control module 601 is configured to: when the current mode of the server cluster is in 1×4 mode, the first interface of the first node or the second node controls the NVMe SSD through the first switch The first interface, the second interface of the first node or the second node controls the second interface of the NVMe SSD through the second switch;

The second control module 602 is configured to: when the current mode of the server cluster is in 2×2 mode, the first interface of the first node controls the first interface of the NVMe SSD through the first switch, and the second The second interface of the second node controls the second interface of the NVMe SSD through the second switch.

In the control system provided by the embodiment of the present invention, the node controls the NVMe SSD through the switch. When the user selects the 1×4 mode, the two interfaces of the NVMe SSD are controlled through two different interfaces of a node. When the user selects the 2×2 mode , to control the two interfaces of the NVMe SSD through two nodes. It can be seen that, the server cluster provided by the embodiment of the present invention implements the conversion between the two PCIe architectures through the switch, without changing the hardware structure, and improves the conversion efficiency.

On the basis of the foregoing embodiments, as a preferred embodiment, it also includes:

The receiving module is configured to receive the target mode of the server cluster selected by the user.

On the basis of the foregoing embodiments, as a preferred embodiment, it also includes:

A judging module, configured to judge whether the target mode is consistent with the current mode;

A switching module, configured to switch the control mode of the server cluster to the target mode when the target mode is inconsistent with the current mode.

The present application also provides a control device, see FIG. 7, a structural diagram of a control device provided by an embodiment of the present invention, as shown in FIG. 7, including:

Memory 701, used to store the control program;

The processor 702 is configured to implement the steps provided in the foregoing embodiments when executing the control program. Of course, the control device may also include various network interfaces, power supplies and other components.

In the control device provided by the embodiment of the present invention, the node controls the NVMe SSD through the switch. When the user selects the 1×4 mode, the two interfaces of the NVMe SSD are controlled through two different interfaces of a node. When the user selects the 2×2 mode , to control the two interfaces of the NVMe SSD through two nodes. It can be seen that, the server cluster provided by the embodiment of the present invention implements the conversion between the two PCIe architectures through the switch, without changing the hardware structure, and improves the conversion efficiency.

The present application also provides a computer-readable storage medium, on which a control program is stored, and when the control program is executed by a processor, the steps provided in the above-mentioned embodiments can be realized. The storage medium may include various media capable of storing program codes such as a U disk, a removable hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Each embodiment in the description is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part. It should be pointed out that those skilled in the art can make some improvements and modifications to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

It should also be noted that in this specification, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations There is no such actual relationship or order between the operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Claims (10)

1. A server cluster, characterized in that, comprising: NVMe SSD; A switch connected to the NVMe SSD; It is connected with the switch and is used to control the node of the NVMe SSD. 2. The server cluster according to claim 1, wherein the first interface of the NVMe SSD is connected to the first switch, and the second interface of the NVMe SSD is connected to the second switch; The first interface of the first node is connected to the first interface of the first switch, and the second interface of the first node is connected to the first interface of the second switch; The first interface of the second node is connected to the second interface of the first switch, and the second interface of the second node is connected to the second interface of the second switch. 3. A control method, characterized in that it is applied to a server cluster as claimed in claim 2, said method comprising: When the current mode of the server cluster is in 1×4 mode, the first interface of the first node or the second node controls the first interface of the NVMe SSD through the first switch, and the first The node or the second interface of the second node controls the second interface of the NVMeSSD through the second switch; When the current mode of the server cluster is in 2×2 mode, the first interface of the first node controls the first interface of the NVMe SSD through the first switch, and the second interface of the second node controls the first interface through the first switch. The second switch controls the second interface of the NVMe SSD. 4. The control method according to claim 3, further comprising: The target mode of the server cluster selected by the user is received. 5. The control method according to claim 4, characterized in that, after receiving the target mode of the server cluster selected by the user, further comprising: judging whether the target mode is consistent with the current mode; If not, switch the control mode of the server cluster to the target mode. 6. A control system, characterized in that, comprising: The first control module is configured to: when the current mode of the server cluster is in 1×4 mode, the first interface of the first node or the second node controls the first interface of the NVMeSSD through the first switch. an interface, the second interface of the first node or the second node controls the second interface of the NVMe SSD through the second switch; The second control module is configured to control the first interface of the NVMe SSD through the first switch on the first interface of the first node when the current mode of the server cluster is in the 2×2 mode, and the second The second interface of the node controls the second interface of the NVMe SSD through the second switch. 7. The control system according to claim 6, further comprising: The receiving module is configured to receive the target mode of the server cluster selected by the user. 8. The control system according to claim 7, further comprising: A judging module, configured to judge whether the target mode is consistent with the current mode; A switching module, configured to switch the control mode of the server cluster to the target mode when the target mode is inconsistent with the current mode. 9. A control device, characterized in that it comprises: memory for storing the control program; A processor, configured to implement the steps of the control method according to any one of claims 3 to 5 when executing the control program. 10. A computer-readable storage medium, wherein a control program is stored on the computer-readable storage medium, and when the control program is executed by a processor, the control method according to any one of claims 3 to 5 is implemented .