CN107818035B - NPIV authenticity verification method based on multi-control MCS system - Google Patents

Abstract

The invention discloses an NPIV authenticity verification method based on a multi-controller MCS system, and relates to the field of storage system port virtualization verification. The status of the NPIV function on the storage system. For each state of the NPIV function on the storage system, try to switch any node to the service state or the offline state, and observe whether the status of the IO stream is stable and whether the multipath status of the server is normal. , whether the virtual ports among multiple controllers on the storage system can drift normally; the method of the present invention can pay attention to the running state of the IO flow in the system through the drift results of physical ports and virtual ports among multiple controllers, and verify the stored NPIV Authenticity, fills the blank of the authenticity test method for storing NPIV, and is simple and effective to implement and has high reliability.

Description

A NPIV authenticity verification method based on multi-control MCS system

technical field

The invention discloses an NPIV authenticity verification method, which relates to the field of storage system port virtualization verification, in particular to an NPIV authenticity verification method based on a multi-controller MCS system.

Background technique

With the advent of the era of big data, data has become the most important wealth of enterprises, institutions and individuals. Data centralization has become a general trend, and more and more enterprises are choosing to build their own cloud storage systems or directly migrate data to the cloud. This result not only brings convenience, but also has higher requirements on the stability and reliability of the storage system.

At present, most storage systems begin to adopt multi-controller redundancy to improve the security and reliability of the system. However, in a multi-controller storage system, when one of the nodes goes down, the server will report a large number of abnormal logs of port down and WWPN switching. The storage system will also be in a degraded state, and performance will degrade under high load. Bring a very poor experience to users and reduce users' recognition of the product. The newly introduced NPIV function on the storage system, when a node goes down, the virtual port WWPN is automatically migrated to other nodes, the host cannot perceive it, and the mutipath will not change, reducing the impact of storage failures on host IO. However, there is currently no method for verifying the authenticity of the NPIV function to verify the validity and reliability of the NPIV function. Therefore, the present invention provides a method for verifying the authenticity of the NPIV based on a multi-control MCS system, which is composed of a multi-control MCS system, a switch and a server. The system, through the drift of physical ports and virtual ports among multiple controllers, pays attention to the running status of the IO flow in the system, verifies the authenticity of the storage NPIV, and fills the blank of the storage NPIV authenticity test method.

The full name of NPIV is N-PortID Virtualization, and N-Port ID is the Fabric ID obtained after the N port logs in to the Fabric network. NPIV is a technology on the host side. It has the function of Fibre Channel, so that the N port on the physical HBA card on the host side can virtualize multiple WWPNs, so that the physical HBA card on the host can register its own WWPN in the Fabric network. Then, the virtual WWPN is also registered in the network, so that multiple N-PortIDs are obtained on one N port.

Multi-controller MCS system, Mutiple Controller System multi-controller system, features low cost, scalability, high performance, ease of use, fault tolerance, load balancing and so on.

SUMMARY OF THE INVENTION

Aiming at the needs and deficiencies of current technology development, the present invention provides an NPIV authenticity verification method based on a multi-control MCS system.

An NPIV authenticity verification method based on a multi-controller MCS system, deploying a verification environment, connecting a storage system and a server through a switch,

On the server, perform long-term IO stream transmission to the storage disk, enable the NPIV function of the switch at the same time, and repeatedly switch the state of the NPIV function on the storage system.

For each state of the NPIV function on the storage system, try to switch any node to the service state or offline state, and observe whether the state of the IO stream is stable, whether the multi-path state of the server is normal, and whether the multi-controller on the storage system is in a normal state. Whether the virtual port can drift normally.

The method repeatedly switches between enabling, transitioning, and disabling states of the NPIV function on the storage system.

The method directly switches any node to the service state or the offline state through the web or command line for each state of the NPIV function on the storage system.

The method uses IOmeter, pdtest or vdbench to observe whether the state of the IO stream is stable, whether the multi-path state of the server is normal, and whether the virtual ports among the multi-controllers on the storage system can drift normally.

An NPIV authenticity verification system based on a multi-control MCS system, including a storage system, a server and a switch, the storage system and the server are connected through the switch, the verification environment is deployed, and on the server, the storage disk is transmitted for a long time by IO stream, At the same time, enable the NPIV function of the switch and repeatedly switch the status of the NPIV function on the storage system.

For each state of the NPIV function on the storage system, try to switch any node to the service state or offline state, and observe whether the state of the IO stream is stable, whether the multi-path state of the server is normal, and whether the multi-controller on the storage system is in a normal state. Whether the virtual port can drift normally.

The system repeatedly switches between enabling, transitioning, and disabling states of the NPIV function on the storage system.

The system directly switches any node to the service state or the offline state through the web or command line for each state of the NPIV function on the storage system.

Compared with the prior art, the present invention has the following beneficial effects:

The invention provides an NPIV authenticity verification method based on a multi-controller MCS system. Based on a system composed of the multi-controller MCS system, a switch and a server, on the server, a long-time IO stream transmission is performed on the storage disk, and the NPIV function of the switch is turned on at the same time. , and repeatedly switch the state of the NPIV function on the storage system. For each state of the NPIV function on the storage system, try to switch any node to the service state or the offline state, and observe whether the state of the IO stream is stable and the number of servers. Whether the path status is normal, and whether the virtual ports among the multi-controllers on the storage system can drift normally; the method of the present invention can pay attention to the running status of the IO flow in the system through the drift results of physical ports and virtual ports among the multi-controllers. Verify the authenticity of the stored NPIV, fill in the blank of the authenticity test method of the stored NPIV, and the implementation is simple and effective, and the reliability is high.

Description of drawings

Fig. 1 is a system deployment block diagram of the present invention;

Fig. 2 is a schematic flow chart of the method of the present invention.

Detailed ways

The invention provides an NPIV authenticity verification method based on a multi-control MCS system, deploying a verification environment, connecting a storage system and a server through a switch, and

On the server, perform long-term IO stream transmission to the storage disk, enable the NPIV function of the switch at the same time, and repeatedly switch the state of the NPIV function on the storage system.

For each state of the NPIV function on the storage system, try to switch any node to the service state or offline state, and observe whether the state of the IO stream is stable, whether the multi-path state of the server is normal, and whether the multi-controller on the storage system is in a normal state. Whether the virtual port can drift normally.

At the same time, an NPIV authenticity verification system based on the multi-control MCS system corresponding to the above method is provided.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments.

Using the method of the present invention, in the deployment verification environment, wherein the storage system is connected with the NF5270M4 server through the FS5800 switch,

On the NF5270M4 server, the IO stream is transferred to the storage disk for a certain period of time according to the actual situation, and the NPIV function of the FS5800 switch is enabled at the same time, and the NPIV function on the storage system is switched repeatedly between the enabling, transitioning, and disabling states;

For each state of the NPIV function on the storage system, directly switch any node to the service state or offline state through the web or command line, and use the IOmeter tool to observe whether the state of the IO stream is stable and whether the multi-path state of the server is normal. , whether the virtual ports between multiple controllers on the storage system can drift normally.

After repeated verification three times, it is found that the verification results are the same, as follows:

IO stream: no interruption, no error;

Server multipath: the status is normal, the path is normal, and the number of server disk multipaths in the transition state is doubled;

Storage: Enable: node service status, virtual port drift to other control nodes;

Transition: node service status, virtual port drifts to other control nodes;

Disabled: node service status, no virtual port, no drift.

The above results can also be observed using the pdtest or vdbench tools. The verification results show that the NPIV function on the storage system is in effect.

The above description is only one of the specific implementations of the content of the present invention, and the verification process of the present invention can be adjusted according to the actual situation without departing from the technical solution of the present invention.

Claims (7)

1. a kind of NPIV authenticity verification method based on multi-controller MCS system, it is characterized in that deployment verification environment, the storage system and server based on multi-controller MCS are connected by switchboard, On the server, the IO stream is transmitted to the storage disk for a certain period of time, and the NPIV function of the switch is turned on at the same time, and the state of the NPIV function on the storage system is repeatedly switched. For each state of the NPIV function on the storage system, try to switch any node to the service state or the offline state, and observe whether the state of the IO stream is stable, whether the multi-path state of the server is normal, and whether the multi-controller on the storage system is in a normal state. Whether the virtual port can drift normally. 2 . The method according to claim 1 , wherein the switching is repeatedly performed between enabling, transitioning, and disabling states of the NPIV function on the storage system. 3 . 3. The method according to claim 1 or 2, wherein for each state of the NPIV function on the storage system, any node is directly switched to the service state or the offline state through web or command line. 4. method according to claim 3 is characterized in that utilize IOmeter or pdtest or vdbench to observe whether the state of IO flow is stable, whether the multipath state of server is normal, whether the virtual port between multi-controllers on the storage system is normal drift. 5. a kind of NPIV authenticity verification system based on multi-controller MCS system is characterized in that comprising storage system, server and switch based on multi-controller MCS, storage system and server are connected by switch, deployment verification environment, on server , perform long-term IO stream transfer to the storage disk, turn on the NPIV function of the switch, and repeatedly switch the state of the NPIV function on the storage system. For each state of the NPIV function on the storage system, try to switch any node to the service state or the offline state, and observe whether the state of the IO stream is stable, whether the multi-path state of the server is normal, and whether the multi-controller on the storage system is in a normal state. Whether the virtual port can drift normally. 6. The system according to claim 5, characterized in that switching is performed repeatedly among the enabling, transitioning, and disabling states of the NPIV function on the storage system. 7. The system according to claim 5 or 6, wherein for each state of the NPIV function on the storage system, any node is directly switched to the service state or the offline state through web or command line.

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