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What is LVM and how to create it on CentOs?

What is Logical Volume Management?

LVM is a tool for logical volume management which includes allocating disks, striping, mirroring and resizing logical volumes. With LVM, a hard drive or set of hard drives is allocated to one or more physical volumes.

How to create it on CentOs?

The physical volumes are combined into logical volumes, with the exception of the /boot/ partition.

The /boot/partition cannot be on a logical volume group because the boot loader cannot read it.

If the root (/) partition is on a logical volume, create a separate /boot/ partition which is not a part of a volume group.

Since a physical volume cannot span over multiple drives, to span over more than one drive, create one or more physical volumes per drive.

The volume groups can be divided into logical volumes, which are assigned mount points. When “partitions” reach their full capacity, free space from the volume group can be added to the logical volume to increase the size of the partition. When a new hard drive is added to the system, it can be added to the volume group, and partitions that are logical volumes can be increased in size.

If a system is partitioned with the ext3 file system, the hard drive is divided into partitions of defined sizes. If a partition becomes full, it is not easy to expand the size of the partition. Even if the partition is moved to another hard drive, the original hard drive space has to be reallocated as a different partition or not used.

Conclusion

Still confused how to create LVM on CentOs? Contact Ideastack now.

Frequently Asked Questions

Q1. What is logical volume?

On physical volumes, logical volumes are collections of data. Management of disk storage involves a hierarchy of structures. Physical volumes (PVs), often known as separate disk drives, are given names like /dev/hdisk0. Each physical volume that is in use is a member of a volume group.

Q2. What is the benefit of LVM?

The primary benefits of LVM are enhanced abstraction, flexibility, and control. Logical volumes can be given meaningful names such as “databases” or “root-backup”. Additionally, volumes can be dynamically resized as storage needs change, moved between physical devices in the pool on a running system, or exported.

Q3. Why is LVM used?

LVM is used for the following purposes: creating single logical volumes from several physical volumes or complete hard disks (similar to RAID 0, but more like JBOD), and allowing for dynamic volume resizing.

What is OpenVZ and what is the use of OpenVZ?

What is OpenVZ?

1.

Linux Operating System OpenVZ allows a physical server to run multiple isolated operating systems called Virtual Private Servers.

2.

It comes with hard memory limits and instead of offering SWAP space it instead offers burstable memory. This burstable memory is only used when it’s available to be utilized on the server.

OpenVZ

What are the uses of OpenVZ?

Since it is lightweight, OS virtualization offers several benefits over machine/ hardware virtualization:

  • It is much more efficient.
  • It scales better.
  • It offer much greater machine density.
  • It offer a larger number of resource management parameters.
  • Resource management is dynamic so, no container restart is needed.

OpenVZ can achieve better performance, scalability, and density because there is a single Linux kernel running on the physical host with each container only taking up the resources necessary for running the processes/services you want inside them without all of the overhead of a full operating system.

Another advantage of OpenVZ is that it offers a wide range of dynamic resource management parameters including several for memory usage, the number of processes, CPU usage, disk space usage, etc all of which may be changed while the container is running.

Conclusion

This article intends to provide an overview of OpenVZ. We hope we were able to dispel any misconceptions you may have had about OpenVZ, and that this article provided you with enough information to make an informed decision. For more information visit Ideastack.

OpenVZ VPS

Frequently Asked Questions

Q1. Is OpenVZ a container?

OpenVZ is a container-based virtualization solution for Linux. OpenVZ deploys many safe, separated Linux containers (also known as VEs or VPSs) on a single physical server, allowing for higher server usage and preventing application conflicts.

Q2. What is OpenVZ node?

The term “Hardware Node,” also referred to as “host system,” is used in the OpenVZ documentation. It refers to the physical server where OpenVZ is installed and running. The letters HW or HN may be used to refer to Hardware Node.

Q3. What OpenVZ 7?

OpenVZ 7 is a virtualization and automation system built on top of OpenVZ components. OpenVZ 7 includes enhancements and new capabilities in areas like as density, management tools, recovery, and so on.

What Is The Difference Between Dedicated Server & Shared Server 

Web hosting is the support for any website or web portal to have a presence on the World Wide Web. This is the first step that the companies and businesses must look into in order to create visibility and a web presence on the internet and the search engines.

There are different kinds of servers that have a different set of properties. The two main kinds of servers are shared hosting servers and dedicated hosting servers.

Dedicated server

What are the differences between dedicated server vs shared server?

A dedicated web serves includes the resources dedicated to a single or particular client. In this server, the client owns all the resources. A shared server whereas is shared by many servers all at once.

A dedicated server hosting provides the liberty to have full control over the server. It can be used in whichever way the client wishes. A shared server consists of different users and though it provides liberty, in comparison to a dedicated server, it does not offer too much freedom on the server while the resources are shared.

A shared server has several domains hosted on it and a dedicated server has only one domain featured on it. Many websites present on the server share the server’s resources. It gives full control to the client over the folder and everything in it.

A dedicated hosting server allows for more optimization than a shared server. Dedicated server has higher speed and customization when compared to shared server. A dedicated server provides more technical support team and system administrators than a shared server.

However, this does not mean that a shared server does not provide the same. In fact, a shared server seems to be a better option for small businesses.

Dedicated server and security

In a dedicated server, a client gets more security compared to a shared server. It gives the user complete control over the website and hence pays attention on the security of only a particular user’s website. The IP address on a dedicated server is of the particular website whereas, in a shared server, different websites use the same IP address.

Since a dedicated server kind of provides services solely to a particular client, it is usually more expensive while a shared server is quite cheaper.

What factors should one consider before choosing a web hosting server?

There are several factors that one must consider before choosing any platform for one’s business or website. Security should be the utmost priority of any business owner. They should focus on maintaining their security and data protection for better performance.

As a dedicated server is more private, holds only one business’s website, and is more suited for websites who wish to get a heavy amount of traffic, one could go for it. But if a business is still new and has a limitation in the budget, they could go for a shared server as it is cheaper and also helps in boosting traffic and increasing web presence.

Conclusion

Both the web servers have advantages and some limitations, but it all depends on the client’s requirements. To know more contact Ideastack now!

Frequently Asked Questions

Q1. What does dedicated server mean?

In a dedicated server, a client has sole access to the entire server.

Q2. What is shared server?

A shared server is a computer that hosts your apps and data alongside the applications and data of other individuals or enterprises.

Q3. How many types of servers are there?

The types of servers are database servers, print servers, mail servers, file servers, application servers, web servers, and game servers.

What are the benefits of Cloud hosting?

It becomes so difficult to maintain the server as healthy if the number of internet users gets become high in number. In such a case, you cannot feel smooth while surfing the internet. That means you have to face some issues like slow surfing speed, server interruptions and unloading speed, etc.

But if you are running an organization and most of the work are done through the internet then nobody would like to have slow internet speed at any cost. In this case, cloud hosting plays a vital role in all expectations regarding the ill-internet network.

It is a kind of on-demand technology that means if you are having a demand for fast internet service for your organization, then you can purchase it from the service provider. And if you come across the need for more RAM then you can make a demand for that.

So if you are searching for what are the benefits of cloud hosting then here you get to know right below.

Cloud computing

The benefits that you have with cloud hosting installation

There are many benefits that you come across after getting installed cloud hosting services for your organization. The main benefits are given below so you can easily understand the needs of cloud hosting.

1. Get scaled up and down as per requirements

If you are having internet service for your company and at some stage, you come across the need of scaling up the server RAM today because now you are having more people to work with you, then through the could hosting you can get scaled-up server resources as per your requirements. That means, it is one of the best options for companies.

2. Easy to have this service at a flexible charge

This is the needed thing that everyone is searching for. So if you want to get cloud hosting for your organization then you should know that it is quite easy to have at affordable charges. You can not only have this internet server service for an organization but also you can have it for school, college, and hospital as well. There are some cloud-hosting service providers, who are intended to provide this service online.

3. Get high-speed internet with cloud hosting

Whenever you are indulging in your deeds to complete with the help of an internet server and you are getting good internet speed because of traffic on the website, then it could be hassled to work with that. Then in such a case, cloud hosting plays a vital role and provides you with a hassle-free server so you can complete the deeds you have.

4. Get rid of any kind of infringement activities with cloud hosting

With cloud hosting, you can get rid of any infringement activities like hacking of the server. And it also ensures protection from failures like hardware failure, the exhausting server, system failure, etc. That means it is safe from many physical issues to you.

Cloud hosting

Conclusion

There are many reasons through which you can easily understand the benefits of having cloud computing. And there are many cloud hosting service providers online at affordable charges. To know more visit Ideastack.

Frequently Asked Questions

Q1. What is cloud hosting?

Cloud hosting allows organisations to manage their websites’ computing resources and data storage without relying entirely on physical servers.

Q2. What are the 3 types of cloud computing?

Types of Cloud Computing:

  • Infrastructure as a Service (IaaS)
  • Platform as a Service (PaaS)
  • Software as a Service (SaaS)

Q3. Who needs cloud hosting?

At a higher level, cloud hosting can be beneficial for businesses that require almost perfect uptime and want to boost their server capacity without any delays. Working with a leading cloud hosting company can give your website solid security and speedy site performance.

Linux or Windows VPS? Which is best?

What makes the VPS system works?

This VPS system also known by its full form of Virtual Private Server is a kind of machine that runs and has its system of operation which is housed in a physical computer. It is a form of service that is sold by Internet hosting service providers.

It is a form of operation that works independently from the other virtual spaces that run on the same machine. This form of VPS hosting is basically for the choice of people who want an up-gradation from their shared hosting plans as in the case of them needing more additional resources.

The VPS system is consider best as it lessens the gaps between shared hosting and dedicated hosting solutions. In simple words, it could be like a service apartment where a user can get the feeling of having more control and freedom over their space without the concern for maintenance.

What are the features of the VPS?

What are the features of the VPS?

This virtual private system comes with some of its basic features which add up to its better response among the people.

1. Scalability

It means the ability to handle rapidly and even kind of increase the workloads on the server. It is more regarded in business settings as it has sudden spikes in the process of web traffic.

2. Dedicated form of resources

The hosting of this VPS supplies its users with a dedicated form of resources and even with the flexibility which enables you to choose the disk space, the storage, and the data.

Which OS is best for VPS?

There are two kinds of VPS hosting that are available Linux VPS and Windows VPS which differ from each other by their performance.

The Linux VPS one is something that has a bit less resource and which doesn’t require the request of regular rebooting whenever the load is high. This VPS is particularly used for the SSH and the management of VPS is carried through this. The other one is windows VPS hosting which requires rebooting after every kind of minor patch or any software update, as it uses the graphical user interface.

The Linux servers come with more security since administrators have the editing and more security privileges which depends on its setup along with the hosting system of it, whereas the windows also have the secure factor only if it has the right setting.

Linux servers

Comparison between Linux VPS and the Windows VPS

If you talk in general terms, both of them have different Benefits in which they work best Linux is consider best if there is less demand on your hardware which requires less reboot as cited above and Windows one offers more reliable support from their regular updates.

Linux is less accessible which restricts editing and security access, whereas windows have a large scale target and offer more potential for the user to make errors or flaws.

Conclusion

If we examine each of the requirements individually, we will definitely conclude that a Linux VPS is preferable to a Windows VPS for us. Each has diverse applications, advantages, and drawbacks. The important question right now is which aspect of our project has more advantages than problems. The query that you should respond to independently!

Frequently Asked Questions

Q1. What is the difference between Linux and Windows VPS?

Another major difference between these two types of VPS hosting is the cost. Since Linux is an open-source operating system, there are no license fees. On the other side, Windows is Microsoft’s commercial operating system. It has high licensing fees.

Q2. Is Linux better than Windows Server?

A Windows server often provides more flexibility and support than a Linux server. Linux is frequently chosen by start-up businesses, whereas large existing businesses typically choose Microsoft. Companies in the middle of their growth cycle may consider employing a VPS.

Q3. Why do companies prefer Linux?

The most demanding corporate application requirements, including network and system administration, database management, and web services, are all supported by Linux. In comparison to other server operating systems, Linux servers are usually chosen due to their dependability, security, and adaptability.

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