Data is very important in any business whether it is online or offline. Data stored in your server cannot be lost as it puts a full stop to your business. If you lose data then you have to spend a lot money, time and effort to replace them. In some critical applications it is not even easy to replace the data. Hence a wise decision is to find some ways to retain your data. This is where Back-up comes into picture. Data back-up is a process in which you save your valuable data to some remote server or in some media which can be used to restore them back when you need it. You may face situations in which you application becomes corrupt or your data file is corrupted. Intentional damage, natural disasters, and hardware failure are some of the other situations which makes your lose your data. During such situations you can use the data that is backed up in your remote server to restore.

periodic backup is necessary so that you do not lose much data when a contingency occurs. Data backup in web hosting industry is common and is also a must, since they face a lot of contingencies mentioned above. With ever increasing viruses and worms you may not when you will lose your data. Hence taking backup of your data is a must in these days. Any web hosting account that you purchase also comes up with a comprehensive backup scheme that can be used to backup the important data that you might have in the server. If you have a site that has many users (members), then it is important that you also backup the data of your users also. Under such situations it is better to backup the site data and the users’ data separately so that you can restore which ever you want. A backup can be incremental or full backup. Full backup is to take a backup of all the data available in the site, whereas the incremental backup is to take a backup of the data that has changed since the last backup.