CN105487898A - A method of increasing the speed of batch startup and shutdown of virtual machines - Google Patents

Abstract

The invention relates to the field of cloud computing management, in particular to a method for improving the batch startup and shutdown speed of virtual machines. The method comprises the steps of firstly setting an SSD path in a background configuration file; secondly, a virtual machine is established through a cloud platform management end; then, the background reads the SSD path of the configuration file; checking whether a created virtual machine mirror image cache has a specified SSD directory or not, and if not, copying the mirror image cache to the specified SSD; and finally, creating a virtual machine according to the mirror image cahce path. The method of the invention saves cost, only needs the mirror image cache part of the hard disk to adopt SSD through the mirror image snapshot technology, and adopts general storage for the others, thus greatly saving storage cost; the utilization rate of computing resources is improved, and the number of virtual machines supported by a single physical server cannot be reduced due to the bottleneck of storage; the method can be used for improving the batch startup and shutdown speed of the virtual machines.

Description

A method of increasing the speed of batch startup and shutdown of virtual machines

technical field

The invention relates to the field of cloud computing management, in particular to a method for increasing the batch startup and shutdown speed of virtual machines.

Background technique

In the cloud computing environment, the performance of the computer's main accessories such as CPU, memory, and graphics card has been improved rapidly. Now a high-performance server can support the creation of more and more virtual machines, and the corresponding disk system Performance is becoming more and more the bottleneck of the performance improvement of the entire system, which leads to slower and slower batch startup and shutdown speeds of virtual machines. Generally, the following methods are used to solve this situation:

1. The hard disk adopts SSD, which directly improves the IO read and write speed to meet the requirements of batch operations.

2. Reduce the number of virtual machines on a single physical server and sacrifice resources to improve performance.

3. Use high-end storage devices to improve basic hardware IO.

The above method has the following disadvantages:

1. Reduce the number of physical server virtual machines, resulting in a serious waste of physical server CPU and memory;

2. SSD and high-end storage devices are an obvious waste of cost.

Contents of the invention

The technical problem solved by the present invention is to provide a method for increasing the batch startup and shutdown speed of virtual machines, solve the shortcomings of traditional methods, save costs, make full use of computing resources, and provide a feasible solution for improving the batch startup and shutdown speed of virtual machines .

The technical scheme that the present invention solves the problems of the technologies described above is:

Described method comprises the steps:

Step 1: Set the SSD path in the background configuration file;

Step 2: Create a virtual machine through the cloud platform management terminal;

Step 3: Read the configuration file SSD path in the background;

Step 4: Check whether the specified SSD directory exists in the created virtual machine image cache, if it exists, perform step 6, otherwise execute sequentially;

Step 5: Copy the image cache to the designated SSD;

Step 6: Create a virtual machine according to the image cahce path.

The background configuration file refers to a file specially storing some program-specific configuration items;

The configuration items mentioned are generally the paths, user names, passwords, mailboxes, etc. commonly used by programs;

The SSD is a solid state drive (Solid State Drives), referred to as a solid state drive, a hard drive made of an array of solid state electronic memory chips.

The reading of the configuration file is to read the SSD path through the program and use it as a verification later.

The image cache refers to a virtual machine image file, which mainly includes two images of Windows and Linux.

The method of the present invention saves costs. Through the mirror snapshot technology, only some hard disks of the mirror cache need to use SSDs, and others use general storage, which greatly saves storage costs. A physical server costs hundreds of dollars at most; improves the use of computing resources The rate will not reduce the number of virtual machines that a single physical server can support due to storage bottlenecks.

Description of drawings

Below in conjunction with accompanying drawing, the present invention is further described:

Fig. 1 is a flowchart of the present invention;

Fig. 2 is a technical schematic diagram of the present invention.

detailed description

There are multiple implementations of the present invention, here will be based on the KVM virtualization implementation as an example to illustrate one of the implementation methods, as shown in Figures 1 and 2, the specific implementation process is as follows:

1. Set the SSD path in the background configuration file

#SSDPATH=/sdb/ssdcache/

2. Create a virtual machine through the cloud platform management terminal

3. Read the configuration file SSD path in the background

4. Check whether the specified SSD directory exists in the created virtual machine image cache. If it exists, perform step 6, otherwise execute in sequence

5. Copy the image cache to the specified SSD

6. Create a virtual machine according to the image cahce path

Claims (5)

1. A method for improving virtual machine batch startup and shutdown speed, characterized in that: described method may further comprise the steps: Step 1: Set the SSD path in the background configuration file; Step 2: Create a virtual machine through the cloud platform management terminal; Step 3: Read the configuration file SSD path in the background; Step 4: Check whether the specified SSD directory exists in the created virtual machine image cache, if it exists, perform step 6, otherwise execute sequentially; Step 5: Copy the image cache to the designated SSD; Step 6: Create a virtual machine according to the image cahce path. 2. The method for improving the batch startup and shutdown speed of virtual machines according to claim 1, characterized in that: the background configuration file refers to a file specially storing some program-specific configuration items; The configuration items mentioned are generally the paths, user names, passwords, mailboxes, etc. commonly used by programs; The SSD is a solid state drive (Solid State Drives), referred to as a solid state drive, a hard drive made of an array of solid state electronic memory chips. 3. The method for increasing the batch startup and shutdown speed of virtual machines according to claim 1, characterized in that: said read configuration file reads the SSD path through a program and uses it as a subsequent verification. 4. The method for increasing the batch startup and shutdown speed of virtual machines according to claim 2, characterized in that: said read configuration file reads the SSD path through a program and uses it as a subsequent verification. 5. The method for increasing the batch startup and shutdown speed of virtual machines according to any one of claims 1 to 4, characterized in that: said image cache refers to virtual machine image files, mainly including two images of Windows and Linux.