How To Choose an Effective Backup Strategy for your VPS

Introduction

An important consideration when storing work and data in a digital environment is how to make sure your information is available when problems arise. This can mean many different things, depending on the application you are using, the importance of immediate failure and the type of problem you expect.

In this tutorial, we will discuss a number of different ways to provide backup and backup data. Because different use cases require different solutions, we cannot give general answers, but you will understand what is important in situations and deployment (or development). different. Which statement is best for your activity.

In the first part of this tutorial, we will discuss different backup solutions that you can use. We will discuss the relative value of each type so you can choose the package that suits your environment. In the second part, we will discuss redundancy options.

What is the difference between a backup and a backup?

The definitions of spare and spare terms are often duplicated and in many cases confusing. These are two very different concepts. Some solutions provide both

Excess

Redundant data means instant failure when a system error occurs. Failure means that if no data set is available, another ideal backup is immediately changed to production to replace it. This leads to almost no noticeable downtime and the application or website can continue to make requests as if nothing happened. At the same time, the system administrator (in this case is for you) is able to resolve the problem and restore the system to full operation.

While this seems like a good backup solution, it is a dangerous paradox. Needless to prevent errors from affecting the whole machine or system. For example, if you have a mirrored RAID configuration (for example, RAID 1), your data is redundant because if the drive fails, the other drive is still available. However, if your device fails alone, all of your data may be lost.

Another disadvantage of this type of setup is that every operation is performed on all copies of the data. This includes malicious or unintentional activities. The right backup solution allows you to recover from previous points where known data is good.

Replace

As mentioned, you must maintain the backup function for important data. Depending on your situation, this may mean a backup of an application or user data or the entire website or computer. The idea behind the backup is that you can restore, deploy, or access your data in case you lose your system, machine, or data. Backups may take a while to recover, but this may mean a difference before the start date. By definition, everything you can’t lose should be supported.

In terms of methods, there are many different levels of backup. They can be classified as necessary to solve different types of problems. For example, you can back up your configuration file before modifying the file to easily revert to the old settings when something goes wrong. This is ideal for small changes that are actively monitored. However, this installation will succeed in case of disk failure or some complicated situation. You also need to back up regularly to a remote location.

The backup does not provide automatic failure. This means that your failure may not make you lose data (assuming your backups are 100% up to date), but they can take up time. This is one of the reasons why backups and backups are often used instead of mutually exclusive.

Backup file level

One of the most common backup forms is the file level backup. This type of backup uses a replication tool to enable a normal file system level to transfer files to other locations or devices.

How to use pp

The easiest way to back up your Linux machine (like VPS) is to use CP. This is just copying files from another local location. On your local computer, you can install a removable disk and then copy the file to it:

Back up / dev / sdc / mnt / my-backup

KPs / etc / * / mnt / my-backup

Umount / dev / sdc

This example installs a removable disk and then copies the / etc directory to the disk. Then switch off the drive and store it somewhere else.

How to use Rsync

A better alternative to rsync is the rsync command, which can be used to execute local backups with greater flexibility. We can use rsync to do the same as above:

Back up / dev / sdc / mnt / my-backup

Rsync -azvP / etc / * / mnt / my-backup

Umount / dev / sdc

Although this

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