CN106534373B - IO performance test method and device for SAN storage equipment - Google Patents
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Abstract
The invention discloses an IO performance test method of SAN storage equipment, which comprises the steps that the storage equipment establishes a plurality of logic unit numbers LUN and is respectively mounted on a plurality of test clients; controlling a client to install an IO performance testing tool and testing the client installation load generator; the control client and the test client communicate; the control client configures the load generator through the IO performance testing tool, and the load generator performs corresponding IO operations. The invention also discloses an IO performance testing device of the SAN storage equipment, which comprises an LUN creating module, a testing tool installing module and a load generator configuration module. The method and the device concurrently execute IO access simulating the actual application scene on different testing clients to obtain a performance test value closer to the actual performance so that the clients can flexibly and accurately select storage devices with different characteristics according to different applications.
Description
Technical Field
The invention relates to the technical field of performance test of storage equipment, in particular to an IO performance test method and device of SAN storage equipment.
Background
The SAN is called Storage Area Network in English, namely Storage Area Network. It is a high speed network or sub-network that provides data transfer between computers and storage systems. A storage device refers to one or more disk devices used to store computer data. An SAN network is composed of a communication structure responsible for network connection, a management layer responsible for organizing connections, storage components, and computer systems, thereby ensuring the security and strength of data transmission. The SAN supports functions such as disk mirroring (disk mirroring), backup and restore (backup and restore), archive and retrieval of archive data, data migration between storage devices, and data sharing between different servers in a network. SANs may also be used to incorporate subnetworks and network-attached storage (NAS) systems.
With the continuous maturity of SAN storage architectures, the types of SAN storage devices are more and more abundant, and as a storage product, IO performance is an important index for measuring the quality of the storage device, so a method for testing the IO performance of the storage device is urgently needed. Iometer is an open source tool developed by Intel corporation for IO subsystem performance testing in single or clustered systems. The Iometer is mainly based on a Windows operating system and can test the read-write performance of the storage subsystem. The Iometer may display the maximum IO capability of the disk system, the maximum throughput of the disk system, CPU usage, error information, and the like. Load IO of Iometer is data block based, mainly used to test performance of physical devices, and is better suited to test SAN storage devices.
The traditional storage performance test method only tests the maximum number of times of read-write Operations Per Second (IOPS) or the maximum bandwidth of a single LUN, and measures the performance of the storage device according to the test result, but SAN storage is often used in a cluster file system, and a plurality of clients access the storage simultaneously, and the actual IO performance is greatly different from the conclusion given by the traditional test method according to different services provided by the clients.
Disclosure of Invention
The invention aims to provide an IO performance test method and device for SAN storage equipment, which concurrently execute IO access simulating an actual application scene on different test clients to obtain a performance test value closer to the actual performance so that the clients can flexibly and accurately select the storage equipment with different characteristics according to different applications.
In order to achieve the purpose, the invention adopts the following technical scheme:
an IO performance test method of SAN storage equipment comprises the following steps:
the storage device establishes a plurality of logic unit numbers LUN and is respectively mounted on a plurality of test clients;
controlling a client to install an IO performance testing tool and testing the client installation load generator;
the control client and the test client communicate;
the control client configures the load generator through the IO performance testing tool, and the load generator performs corresponding IO operations.
Preferably, the storage device creates a plurality of LUNs and mounts the LUNs before the plurality of test clients, respectively, and the method includes the following steps:
releasing the storage space of the storage device;
reestablishing the RAID;
creating a storage pool, and adding the created RAID into the storage pool;
a plurality of LUNs are created in a storage pool.
Preferably, the LUNs are each two to five times the size of the storage device cache.
Preferably, recreating RAID further comprises: all RAID levels are overlaid differently depending on the type supported by the storage device.
Preferably, the IO performance testing tool is based on a Windows operating system.
Preferably, the control client adopts a Windows operating system and is recorded as a Windows client; the test client adopts a Linux operating system and is recorded as a Linux client.
Preferably, the LUNs are mounted on multiple test clients, respectively, using an interface protocol.
The invention also provides an IO performance testing apparatus for the SAN storage device, including:
the LUN creating module is used for creating a plurality of LUNs in the storage equipment and respectively mounting the LUNs on a plurality of test clients;
the test tool installation module is used for installing an IO performance test tool on the control client and installing a load generator on the test client;
and the load generator configuration module is used for controlling the client to configure the load generator through the IO performance test tool, and the load generator executes corresponding IO operation.
Preferably, the method further comprises the following steps: and the RAID rebuilding module is used for rebuilding RAID.
Preferably, the method further comprises the following steps: and the storage pool creating module is used for creating the storage pool and adding the created RAID into the storage pool.
Compared with the prior art, the invention has the following advantages:
the invention creates a plurality of LUNs for testing in the storage device, the LUNs are respectively mounted on a plurality of testing clients, and the LUNs are created by adopting different RAID levels so as to simulate the actual application scene. And installing and operating an IO test tool on the control client, and taking the control client as a terminal for configuring the IO mode of each test client and a terminal for collecting test data. A load generator is installed and run at each test client. And controlling the client to configure the load generator to execute IO loads simulating different application scenes, performing concurrent read-write test on the storage device, and finally analyzing an output test result. Through the process, the traditional method for testing the performance of only a single disk is changed, so that a plurality of testing clients in the whole cluster access the storage equipment simultaneously, and different IO scenes are simulated at each testing client, so that more accurate IO performance data can be obtained, different storage equipment can be selected for different applications, and the cost is saved on the premise of giving full play to the performance of the storage equipment.
Drawings
FIG. 1 is a schematic structural diagram of an IO performance testing apparatus of a SAN storage device according to the present invention;
FIG. 2 is a schematic flowchart of an IO performance testing method of a SAN storage device according to an embodiment of the present invention;
FIG. 3 is a second schematic structural diagram of an IO performance testing apparatus of SAN storage devices according to the present invention;
fig. 4 is a second flowchart illustrating an IO performance testing method for the SAN storage device according to the present invention.
Detailed Description
For the sake of understanding, some terms appearing in the present invention are explained below:
the full name of a LUN is a Logical Unit Number, i.e., a Logical Unit Number. The number of devices attachable to the ISCSI bus is limited, and is generally 8 or 16, and these devices can be described by Target ID (also called ISCSI ID), and a device has a code number as soon as it is added to the system, and when distinguishing the devices, it is only necessary to say the Target ID number.
The ISCSI protocol belongs to an end-to-end session layer protocol, which defines the mapping from SCSI to TCP/IP, i.e. an Initiator encapsulates SCSI instructions and data into ISCSI protocol data units, submits the ISCSI protocol data units to a TCP layer, finally encapsulates the ISCSI protocol data units into IP data packets, transmits the IP data packets on an IP network, and restores the ISCSI protocol data units into SCSI instructions and data by decapsulation after reaching Target, and then sends the SCSI instructions and data to a specified driver by a storage controller, thereby realizing the transparent transmission of SCSI instructions and data on the IP network. The system integrates the existing storage protocol SCSI and the network protocol TCP/IP, and realizes the seamless integration of storage and TCP/IP networks.
A Redundant Array of Independent Disks (RAID) has the meaning of "array with redundancy capability made up of Independent Disks". The disk array is a disk group with a large capacity composed of a plurality of inexpensive disks, and the performance of the entire disk system is improved by the additive effect of providing data by individual disks.
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings and examples:
first embodiment, an IO performance testing apparatus of a SAN storage device according to the present invention is shown in fig. 1, and includes a LUN creation module 13, a test tool installation module 14, a load generator configuration module 15, a RAID reconstruction module 11, and a storage pool creation module 12. The RAID rebuilding module 11 is sequentially connected to the storage pool creating module 12, the LUN creating module 13, the test tool installing module 14, and the load generator configuring module 15.
The LUN creation module 13 is configured to create a plurality of LUNs in the storage device, and mount the LUNs on a plurality of test clients respectively; the test tool installation module 14 is used for installing an IO performance test tool on the control client and installing a load generator on the test client; the load generator configuration module 15 is used for controlling the client to configure the load generator through the IO performance testing tool, and the load generator executes corresponding IO operations; the RAID rebuilding module 11 is used for rebuilding RAID; the storage pool creation module 12 is used to create a storage pool and add the created RAID to the storage pool.
Example two: the IO performance test method of SAN storage equipment of the invention is shown in FIG. 2, and comprises the following steps:
step S201, releasing the storage space of the storage device to be tested.
Step S202, re-creating a RAID array, and covering all RAID levels according to the types supported by the storage device, for example, creating several RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10, and ensuring that the available sizes of the RAID are not greatly different.
Step S203, a storage pool is created, and the created RAID is added into the storage pool to form an abstraction layer which can be used for creating LUNs.
Step S204, more than 10 LUNs are created in the storage pool, in this example, 20 LUNs are created, and the size of each LUN is ensured to be two times to five times of the cache of the storage device, so as to reduce the influence of the cache on the actual performance of the disk during testing, so as to obtain more real data. If the storage device has advanced features of auto-compaction, compression, auto-layering, etc., these features need to be turned on to take full advantage of the full capabilities of the storage device.
Step S205, starting the iSCSI function of the storage device, configuring each LUN on the storage device into an iSCSI target and acquiring iqn name of each LUN. Ensuring the smoothness of an IP link between each Linux client and the storage device, and installing iSCSI initiator software on each Linux client, wherein the method comprises the following steps: iscsi-initiator-utils. Starting an initiating end program, searching iSCSI target on the storage equipment, logging in a LUN on the storage equipment by using ISCSI protocol, and mapping the LUN to the local. The same operation is performed for the remaining Linux clients. At least 10, in this example 20, Linux clients need to be configured to simulate a multi-user concurrent access scenario.
Step S206, installing and running the Iometer on a Windows client as a Console end, wherein the Windows client is used as a terminal for configuring the IO mode of each Linux client and a terminal for collecting test data. Dynamo is installed and run on each Linux client.
Step S207, after each Linux client executes the following command of 'Dynamo-i IP address of Windows client-m IP address of local machine', the Windows client is associated with the Linux client after the command is executed, each Linux client becomes a Manager when seen in an Iometer configuration window of the Windows client, 1-4 Workers are created under each Manager, different numbers of Workers are created according to different scenes needing simulation, for example, 1 Worker is created when single-thread data is simulated, and a plurality of Workers are created when multithreading is simulated.
And S208, respectively configuring each Worker of each Manager by the Iometer, wherein items to be configured comprise the maximum concurrent asynchronous IO number, the IO Size, the read-write proportion and the random sequence proportion, and simulating different application scenes through setting of the parameters. Different Linux clients can simulate different application scenarios, respectively.
Step S209, after the configuration is completed, the test is executed on the Windows client, at this time, all Linux clients will execute the IO operation configured just now at the same time, the longer the test time is, the more accurate the data will be obtained,
and step S210, checking the excel file of the output result after the test is finished, and obtaining the relatively accurate IO performance corresponding to the scene.
The IO performance testing method of the SAN storage equipment, disclosed by the invention, is characterized in that IO operation simulating actual application scenes is concurrently executed on different Linux clients to simulate IO access of different actual application scenes to obtain an IO performance test value closer to the actual IO performance so that a client can flexibly and accurately select the storage equipment with different characteristics according to different applications and provide more accurate guidance for the client.
Example three: another IO performance testing apparatus of SAN storage device of the present invention is shown in fig. 3, and includes a LUN creation module 31, a test tool installation module 32, and a load generator configuration module 33. Wherein the LUN creation module 31 is connected in sequence with the test tool installation module 32 and the load generator configuration module 33.
The LUN creation module 31 is configured to create a plurality of LUNs in the storage device, and mount the LUNs on a plurality of test clients respectively; the test tool installation module 32 is used for installing an IO performance test tool on the control client and installing a load generator on the test client; the load generator configuration module 33 is used to control the client to configure the load generator through the IO performance testing tool, and the load generator performs the corresponding IO operation.
Example four: another method for testing IO performance of SAN storage devices according to the present invention is shown in fig. 4, and includes the following steps:
step S401, a storage device creates a plurality of logic unit numbers LUNs and respectively mounts the LUNs on a plurality of test clients;
step S402, controlling the client to install an IO performance testing tool and testing the client installation load generator;
step S403, the control client communicates with the test client;
step S404, the control client configures the load generator through the IO performance testing tool, and the load generator executes a corresponding IO operation.
The invention can simulate SAN storage equipment of different application scenes based on multi-client concurrent access so that a client can select the storage equipment with different characteristics aiming at different applications.
The above shows only the preferred embodiments of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. An IO performance test method of SAN storage equipment is characterized by comprising the following steps:
the storage device establishes a plurality of logic unit numbers LUN and is respectively mounted on a plurality of test clients;
controlling a client to install an IO performance testing tool and testing the client installation load generator; installing and operating an Iometer on a Windows client, and taking the Iometer as a Console end, wherein the Windows client is used as a terminal for configuring the IO mode of each Linux client and a terminal for collecting test data; installing and running Dynamo on each Linux client;
the control client and the test client communicate; executing the following command 'the IP address of a Dynamo-i Windows client-the IP address of a local machine'm 'at each Linux client', associating the Windows client with the Linux clients after executing the command, viewing that each Linux client becomes a Manager in an Iometer configuration window of the Windows client, and creating 1-4 workers below each Manager;
the control client configures a load generator through an IO performance testing tool, the Iometer configures each Worker of each Manager respectively, items to be configured comprise maximum concurrent asynchronous IO number, IO Size, read-write proportion and random sequence proportion, different application scenes are simulated through setting of the parameters, and the load generator executes corresponding IO operation.
2. The method for IO performance testing of a SAN storage device according to claim 1, wherein the storage device creates a plurality of LUNs and mounts the LUNs before the plurality of test clients, respectively, comprising the steps of:
releasing the storage space of the storage device;
reestablishing the RAID;
creating a storage pool, and adding the created RAID into the storage pool;
a plurality of LUNs are created in a storage pool.
3. The method for testing IO performance of SAN storage devices of claim 1 or 2, wherein the size of the LUN is two to five times of the storage device cache.
4. The method for IO performance testing of SAN storage devices of claim 2, wherein recreating RAID further comprises: all RAID levels are overlaid differently depending on the type supported by the storage device.
5. The method of claim 1, wherein the IO performance testing tool is based on a Windows operating system.
6. The method for IO performance testing of SAN storage devices of claim 5, wherein the control client uses Windows operating system, denoted Windows client; the test client adopts a Linux operating system and is recorded as a Linux client.
7. The method for IO performance testing of a SAN storage device of claim 1, wherein the LUNs are mounted on the plurality of test clients, respectively, using an interface protocol.
8. An IO performance testing apparatus of SAN storage devices, comprising:
the LUN creating module is used for creating a plurality of LUNs in the storage equipment and respectively mounting the LUNs on a plurality of test clients;
the test tool installation module is used for installing an IO performance test tool on the control client and installing a load generator on the test client; installing and operating an Iometer on a Windows client, and taking the Iometer as a Console end, wherein the Windows client is used as a terminal for configuring the IO mode of each Linux client and a terminal for collecting test data; installing and running Dynamo on each Linux client;
and the load generator configuration module is used for controlling the client to configure the load generator through an IO performance test tool, the Iometer configures each Worker of each Manager respectively, items to be configured comprise maximum concurrent asynchronous IO number, IO Size, read-write proportion and random sequence proportion, different application scenes are simulated through setting of the parameters, and the load generator executes corresponding IO operation.
9. The IO performance testing apparatus of the SAN storage device according to claim 8, further comprising:
and the RAID rebuilding module is used for rebuilding RAID.
10. The IO performance testing apparatus of the SAN storage device according to claim 9, further comprising:
and the storage pool creating module is used for creating the storage pool and adding the created RAID into the storage pool.
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| CN107608626B (en) * | 2017-08-16 | 2020-05-19 | 华中科技大学 | A kind of multi-level cache and cache method based on SSD RAID array |
| CN108897651A (en) * | 2018-07-02 | 2018-11-27 | 郑州云海信息技术有限公司 | A kind of test method and its system of SAN storage equipment |
| CN108984356A (en) * | 2018-07-10 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of IT product test method and device |
| CN109408277B (en) * | 2018-11-02 | 2021-10-29 | 郑州云海信息技术有限公司 | A method for testing data block link characteristics of AEP memory |
| CN109614330A (en) * | 2018-12-06 | 2019-04-12 | 广东浪潮大数据研究有限公司 | Storage system service test method, device, system, storage control and medium |
| CN115801633B (en) * | 2023-02-08 | 2023-04-28 | 湖南国科亿存信息科技有限公司 | Multi-client sharing concurrency performance testing method and system for SAN storage |
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