CN112153129B - Improved dual-protocol path method and device - Google Patents
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Abstract
The invention provides an improved dual-protocol path method and a device, wherein the method comprises the following steps: s1, setting a path processing module for multi-control rear-end storage equipment; s2, a path processing module generates controller identifications for each controller of the multi-control rear-end storage device, allocates different addresses for different fields of the controller identifications, corresponds the fields of the controller identifications to ports of the controllers, and selects one port from the ports of the controllers to be set as a default port; the controller identification field comprises an SCSI identification field and an NVME identification field; and S3, the host establishes path link with the multi-control back-end storage device according to the controller identification, and selects a controller port corresponding to the corresponding controller identification field for data transmission according to the host opening IO type.
Description
Technical Field
The invention belongs to the technical field of storage product paths, and particularly relates to an improved dual-protocol path method and device.
Background
WWNN, short for world Wide Node Name, is a globally unique identifier for each Node.
WWPN, an acronym for World Wide Port Name, is a globally unique identifier for each Port of each node.
HBA is short for Host Bus Adapter, host Bus Adapter.
The FC HBA is an optical fiber HBA.
SCSI is a short for Small Computer System Interface, the Interface standard between Computer and external device.
NVMe is the Non-Volatile Memory express short for, and is a specification of a host controller interface of a Non-Volatile Memory.
With the rapid development of computer technologies, many technologies are greatly improved, and especially the successful use of a back-end storage system partition meets the requirements of security and rapidity of data issued by a server host. And the successful use of cache and flash memory meets the requirements of various computer fields on computing resources and computing rate, the processing mode greatly accelerates the data processing speed, however, for a multi-control system, when using FC HBA to carry out IO transmission, only a single SCSI protocol is supported, and the NVMe protocol is not supported, so that the extremely high data processing speed falls into a bottleneck.
This is a disadvantage of the prior art, and therefore, it is desirable to provide an improved dual protocol path method and apparatus for addressing the above-mentioned drawbacks of the prior art.
Disclosure of Invention
Aiming at the defect that the prior art only supports a single SCSI protocol and does not support the NVMe protocol, so that the extremely high data processing speed falls into a bottleneck, the invention provides an improved dual-protocol path method and a device, so as to solve the technical problems.
In a first aspect, the present invention provides an improved dual protocol path method, comprising the steps of:
s1, setting a path processing module for multi-control rear-end storage equipment;
s2, a path processing module generates controller identification for each controller of the multi-control back-end storage device, different addresses are distributed to different fields of the controller identification, the fields of the controller identification correspond to ports of the controllers, and one port is selected from the controller ports to be set as a default port; the controller identification field comprises an SCSI identification field and an NVME identification field;
and S3, the host establishes a path link with the multi-control back-end storage device according to the controller identifier, and selects a controller port corresponding to the corresponding controller identifier field for data transmission according to the host starting IO type.
Further, the step S2 specifically includes the following steps:
s21, a path processing module generates controller identifications expressed by WWNN for each controller of the multi-control rear-end storage device;
s22, the path processing module creates two structural bodies, namely, a host _ SCSI _ wnn and a host _ NVME _ wnn, for each WWNN, sets the host _ SCSI _ wnn as an SCSI identification field, and sets the host _ NVME _ wnn as an NVME identification field;
s23, the path processing module registers the WWNN, host _ scsi _ wnn and host _ nvme _ wnn of each controller to the system through driving, and different WWNNs are distributed to each controller;
and S24, initializing controller information, mapping a host, mapping port information of the controller to the host, and selecting one port from the ports of the controller to be set as a default port.
Further, the step S24 specifically includes the following steps:
s241, setting an SCSI identification field host _ SCSI _ wnn as an active state by default, and setting an NVME identification field host _ NVME _ wnn as an inactive field by default;
and S242, setting a default corresponding SCSI identification field host _ SCSI _ wnn of the controller port.
Further, the step S3 specifically includes the following steps:
s31, the host establishes a path link with the back-end storage device through a driving layer according to the controller identifier WWNN;
s32, judging the type of the IO opened by the host;
if yes, go to step S33;
if yes, entering step S34;
s33, the host sends data to a controller port corresponding to the default SCSI identification field host _ SCSI _ wnn, and the operation is finished;
and S34, the host starts an NVME identification field host _ NVME _ wnn, sets a virtual NVME controller port, sends data to the virtual NVME controller port, and ends.
Further, in step S32, if the host turns on the IO type is NVME IO, but SCSI data is not sent completely, then step S35 is performed;
and S35, the host starts an NVME identification field host _ NVME _ wnn, sets a virtual NVME controller port, and simultaneously sends the residual SCSI data to the virtual NVME controller port and the original controller port.
In a second aspect, the present invention provides an improved dual protocol path apparatus comprising:
the path processing module setting unit is used for setting a path processing module for the multi-control back-end storage device;
the controller identification generating unit is used for setting the path processing module to generate controller identifications for each controller of the multi-control back-end storage device, allocating different addresses to different fields of the controller identifications, corresponding the fields of the controller identifications to ports of the controllers, and then selecting one port from the ports of the controllers to be set as a default port; the controller identification field comprises an SCSI identification field and an NVME identification field;
and the data sending unit is used for establishing a path link between the host and the multi-control rear-end storage device according to the controller identifier, and then selecting the controller port corresponding to the corresponding controller identifier field to send data according to the host opening IO type.
Further, the controller identification generation unit includes:
the controller identifier generation subunit is used for setting the path processing module to generate a controller identifier expressed by WWNN for each controller of the multi-control rear-end storage device;
the controller identification field automatic creation subunit is used for setting a path processing module to create two structural bodies, namely, a host _ SCSI _ wnn and a host _ NVME _ wnn, for each WWNN, setting the host _ SCSI _ wnn as an SCSI identification field, and setting the host _ NVME _ wnn as an NVME identification field;
the system registration subunit is used for setting WWNN, host _ scsi _ wnn and host _ nvme _ wnn of each controller registered to the system by the path processing module through driving, and distributing different WWNNs for each controller;
and the default port setting subunit is used for setting the information of the initialization controller, mapping the host, mapping the port information of the controller to the host, and selecting one port from the ports of the controller as the default port.
Further, the default port setting subunit includes:
the controller identification field active state setting secondary subunit is used for setting an SCSI identification field host _ SCSI _ wnn as an active state by default and setting an NVME identification field host _ NVME _ wnn as an inactive field by default;
and the control port defaults to set a secondary subunit, which is used for setting a corresponding SCSI identification field host _ SCSI _ wnn defaulted by the controller port.
Further, the data transmission unit includes:
the path link establishing subunit is used for setting the host to establish a path link with the back-end storage device through the driving layer according to the controller identifier WWNN;
the IO type starting judging subunit is used for judging the type of the IO started by the host;
the SCSI data sending unit is used for setting the host to send data to the controller port corresponding to the default SCSI identification field host _ SCSI _ wnn when the open IO type is SCSI IO;
and the NVMe data sending unit is used for setting the host to open the NVME identification field host _ NVMe _ wnn, setting the virtual NVME controller port and sending data to the virtual NVME controller port when the opening IO type is NVMe IO.
Further, the data transmission unit further includes:
and the double-data sending unit is used for setting the host to open the NVME identification field host _ NVME _ wnn, setting the virtual NVME controller port, and sending the rest SCSI data to the virtual NVME controller port and the original controller port when the host opens the IO type which is NVME IO and the SCSI data is not sent completely.
The invention has the beneficial effects that,
the improved dual-protocol path method and the device provided by the invention improve the data sending capability of the dual-protocol type host for sending scsi and nvme commands at the same time, do not need to interrupt IO, greatly improve the rapidity and the safety of the host for processing the IO by dual-protocol paths, and prevent the host from generating larger time delay when switching paths between different protocols.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first schematic flow chart of the method of the present invention;
FIG. 2 is a second schematic flow chart of the method of the present invention;
FIG. 3 is a schematic of the system of the present invention;
in the figure, 1-path processing module setting unit; 2-a controller identification generation unit; 2.1-controller identification generation subunit; 2.2-the controller identification field automatically creates a subunit; 2.3-system registration subunit; 2.4-default port setup subunit; 3-a data transmission unit; 3.1-path link establishment subunit; 3.2-opening an IO type judgment subunit; 3.3-SCSI data sending unit; 3.4-NVMe data sending unit; 3.5-double data transmission unit.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1, the present invention provides an improved dual protocol path method, comprising the steps of:
s1, setting a path processing module for multi-control rear-end storage equipment;
s2, a path processing module generates controller identifications for each controller of the multi-control rear-end storage device, allocates different addresses for different fields of the controller identifications, corresponds the fields of the controller identifications to ports of the controllers, and selects one port from the ports of the controllers to be set as a default port; the controller identification field comprises an SCSI identification field and an NVME identification field;
and S3, the host establishes path link with the multi-control back-end storage device according to the controller identification, and selects a controller port corresponding to the corresponding controller identification field for data transmission according to the host opening IO type.
Example 2:
as shown in fig. 2, the present invention provides an improved dual protocol path method, comprising the steps of:
s1, setting a path processing module for multi-control rear-end storage equipment;
s2, a path processing module generates controller identifications for each controller of the multi-control rear-end storage device, allocates different addresses for different fields of the controller identifications, corresponds the fields of the controller identifications to ports of the controllers, and selects one port from the ports of the controllers to be set as a default port; the controller identification field comprises an SCSI identification field and an NVME identification field; the method comprises the following specific steps:
s21, a path processing module generates controller identifications expressed by WWNN for each controller of the multi-control rear-end storage device;
s22, the path processing module creates two structural bodies, namely, a host _ SCSI _ wnn and a host _ NVME _ wnn, for each WWNN, sets the host _ SCSI _ wnn as an SCSI identification field, and sets the host _ NVME _ wnn as an NVME identification field;
s23, the path processing module registers the WWNN, host _ scsi _ wnn and host _ nvme _ wnn of each controller to the system through driving, and different WWNNs are distributed to each controller;
s24, initializing controller information, mapping a host, mapping port information of the controller to the host, and selecting one port from the controller ports as a default port;
s3, the host establishes path link with the multi-control back-end storage device according to the controller identification, and selects a controller port corresponding to the corresponding controller identification field for data transmission according to the host opening IO type; the method comprises the following specific steps:
s31, the host establishes path link with the rear-end storage device through a driving layer according to the controller identification WWNN;
s32, judging the type of the IO opened by the host;
if yes, go to step S33;
if yes, entering step S34;
if the host opens the IO type to be NVME IO, but SCSI data is not sent completely, the step S35 is entered;
s33, the host sends data to a controller port corresponding to the default SCSI identification field host _ SCSI _ wnn, and the operation is finished;
s34, the host starts an NVME identification field host _ NVME _ wnn, sets a virtual NVME controller port, sends data to the virtual NVME controller port and finishes sending the data;
and S35, the host starts an NVME identification field host _ NVME _ wnn, sets a virtual NVME controller port, and simultaneously sends the residual SCSI data to the virtual NVME controller port and the original controller port.
Example 3:
as shown in fig. 3, the present invention provides an improved dual protocol path apparatus, comprising:
the path processing module setting unit 1 is used for setting a path processing module for the multi-control rear-end storage device;
the controller identifier generating unit 2 is configured to set the path processing module to generate a controller identifier for each controller of the multi-control back-end storage device, allocate different addresses to different fields of the controller identifier, correspond the fields of the controller identifier to ports of the controller, and select one port from the controller ports to be a default port; the controller identification field comprises an SCSI identification field and an NVME identification field; the controller identification generation unit 2 includes:
a controller identifier generation subunit 2.1, configured to set the path processing module to generate a controller identifier expressed by WWNN for each controller of the multi-control backend storage device;
the controller identification field automatic creation subunit 2.2 is used for setting a path processing module to create two structural bodies, namely, a host _ SCSI _ wnn and a host _ NVME _ wnn, for each WWNN, setting the host _ SCSI _ wnn as an SCSI identification field, and setting the host _ NVME _ wnn as an NVME identification field;
a system registration subunit 2.3, configured to set a path processing module to register, to the system, the WWNN, host _ sci _ wnn, and host _ nvme _ wnn of each controller through a driver, and allocate a different WWNN to each controller;
a default port setting subunit 2.4, configured to set initialization controller information, perform host mapping, map port information of the controller to the host, and select one port from the controller ports to be a default port; the default port setting subunit 2.4 includes:
the controller identification field active state setting secondary subunit is used for setting an SCSI identification field host _ SCSI _ wnn as an active state by default and setting an NVME identification field host _ NVME _ wnn as an inactive field by default;
the control port default setting secondary subunit is used for setting a controller port default corresponding SCSI identification field host _ SCSI _ wnn;
the data sending unit 3 is used for the host to establish a path link with the multi-control back-end storage device according to the controller identifier, and then to select the controller port corresponding to the corresponding controller identifier field to send data according to the host start IO type; the data transmission unit 3 includes:
a path link establishing subunit 3.1, configured to set the host to establish a path link with the backend storage device through the driver layer according to the controller identifier WWNN;
an IO type opening judgment subunit 3.2, which is used for judging the type of the host computer opening IO;
a SCSI data sending unit 3.3, configured to set the host to send data to the controller port corresponding to the default SCSI identification field host _ ssi _ wnn when the open IO type is SCSI IO;
the NVMe data sending unit 3.4 is used for setting the host to open the NVME identification field host _ NVMe _ wnn, setting the virtual NVME controller port and sending data to the virtual NVME controller port when the opening IO type is NVMe IO;
and the double-data sending unit 3.5 is used for setting the host to open the NVME identification field host _ NVME _ wnn, setting the virtual NVME controller port, and sending the rest SCSI data to the virtual NVME controller port and the original controller port when the host opening IO type is NVME IO and the SCSI data is not sent completely.
Although the present invention has been described in detail in connection with the preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions should be within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure and the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (4)
1. An improved dual protocol path method, comprising the steps of:
s1, setting a path processing module for multi-control rear-end storage equipment;
s2, a path processing module generates controller identifications for each controller of the multi-control rear-end storage device, allocates different addresses for different fields of the controller identifications, corresponds the fields of the controller identifications to ports of the controllers, and selects one port from the ports of the controllers to be set as a default port; the controller identification field comprises an SCSI identification field and an NVME identification field; the step S2 comprises the following specific steps:
s21, a path processing module generates controller identifications expressed by WWNN for each controller of the multi-control rear-end storage device;
s22, the path processing module creates two structural bodies, namely, a host _ SCSI _ wnn and a host _ NVME _ wnn, for each WWNN, sets the host _ SCSI _ wnn as an SCSI identification field, and sets the host _ NVME _ wnn as an NVME identification field;
s23, the path processing module registers the WWNN, host _ scsi _ wnn and host _ nvme _ wnn of each controller to the system through driving, and different WWNNs are distributed to each controller;
s24, initializing controller information, mapping a host, mapping port information of a controller to the host, and selecting one port from the ports of the controller to be set as a default port;
s3, the host establishes a path link with the multi-control back-end storage device according to the controller identifier, and selects a controller port corresponding to the corresponding controller identifier field to transmit data according to the host starting IO type; the step S3 comprises the following specific steps:
s31, the host establishes path link with the rear-end storage device through a driving layer according to the controller identification WWNN;
s32, judging the type of the IO opened by the host;
if yes, go to step S33;
if yes, entering step S34;
s33, the host sends data to a controller port corresponding to the default SCSI identification field host _ SCSI _ wnn, and the operation is finished;
s34, the host starts an NVME identification field host _ NVME _ wnn, sets a virtual NVME controller port, sends data to the virtual NVME controller port, and finishes;
in step S32, if the host has an open IO type of NVME IO, but SCSI data is not sent completely, then step S35 is performed;
and S35, the host starts an NVME identification field host _ NVME _ wnn, sets a virtual NVME controller port, and simultaneously sends the residual SCSI data to the virtual NVME controller port and the original controller port.
2. The improved dual protocol path method as claimed in claim 1, wherein step S24 comprises the following steps:
s241, setting an SCSI identification field host _ SCSI _ wnn as an active state by default, and setting an NVME identification field host _ NVME _ wnn as an inactive field by default;
and S242, setting a default corresponding SCSI identification field host _ SCSI _ wnn of the controller port.
3. An improved dual protocol path apparatus comprising
The path processing module setting unit (1) is used for setting a path processing module for the multi-control rear-end storage device;
the controller identification generating unit (2) is used for setting the path processing module to generate controller identifications for each controller of the multi-control rear-end storage device, allocating different addresses to different fields of the controller identifications, corresponding the fields of the controller identifications to ports of the controllers, and then selecting one port from the ports of the controllers to be set as a default port; the controller identification field comprises an SCSI identification field and an NVME identification field; the controller identification generation unit (2) includes:
a controller identifier generation subunit (2.1) for setting the path processing module to generate a controller identifier expressed by WWNN for each controller of the multi-control back-end storage device;
the controller identification field automatic creation subunit (2.2) is used for setting a path processing module to create two structural bodies, namely, a host _ SCSI _ wnn and a host _ NVME _ wnn, for each WWNN, setting the host _ SCSI _ wnn as an SCSI identification field, and setting the host _ NVME _ wnn as an NVME identification field;
a system registration subunit (2.3) for setting the WWNN, host _ scsi _ wnn and host _ nvme _ wnn of each controller registered by the path processing module to the system through driving, and distributing different WWNNs for each controller;
a default port setting subunit (2.4) for setting initialization controller information, performing host mapping, mapping the port information of the controller to the host, and selecting one port from the controller ports as a default port;
the data sending unit (3) is used for establishing path link between the host and the multi-control back-end storage device according to the controller identifier, and selecting a controller port corresponding to the corresponding controller identifier field for data sending according to the host opening IO type; the data transmission unit (3) comprises:
a path link establishing subunit (3.1) for setting the host to establish a path link with the back-end storage device through the driving layer according to the controller identifier WWNN;
an IO opening type judgment subunit (3.2) for judging the type of the host opening IO;
the SCSI data sending unit (3.3) is used for setting the host to send data to the controller port corresponding to the default SCSI identification field host _ SCSI _ wnn when the open IO type is SCSI IO;
the NVMe data sending unit (3.4) is used for setting the host to open the NVME identification field host _ NVMe _ wnn, setting the virtual NVME controller port and sending data to the virtual NVME controller port when the open IO type is NVMe IO;
and the double-data sending unit (3.5) is used for setting the host starting NVME identification field host _ NVME _ wnn, setting the virtual NVME controller port, and sending the rest SCSI data to the virtual NVME controller port and the original controller port when the host starting IO type is NVME IO and the SCSI data is not sent completely.
4. Improved dual protocol path arrangement according to claim 3, characterized in that the default port setting subunit (2.4) comprises:
the controller identification field active state setting secondary subunit is used for setting an SCSI identification field host _ SCSI _ wnn as an active state by default and setting an NVME identification field host _ NVME _ wnn as an inactive field by default;
and the control port defaults to set a secondary subunit, which is used for setting a corresponding SCSI identification field host _ SCSI _ wnn defaulted by the controller port.
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| CN106775458A (en) * | 2016-11-29 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of utilization iSCSI realizes the method and device of storage device virtualization |
| CN107077447A (en) * | 2014-09-29 | 2017-08-18 | 思科技术公司 | Shared virtualization local storage |
| CN108683659A (en) * | 2018-05-11 | 2018-10-19 | 新华三技术有限公司成都分公司 | Multi-protocol data communication means and device |
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| CN107077447A (en) * | 2014-09-29 | 2017-08-18 | 思科技术公司 | Shared virtualization local storage |
| CN106775458A (en) * | 2016-11-29 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of utilization iSCSI realizes the method and device of storage device virtualization |
| CN108683659A (en) * | 2018-05-11 | 2018-10-19 | 新华三技术有限公司成都分公司 | Multi-protocol data communication means and device |
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