How to write a good data backup solution

Backup and Recovery Solutions

Solutions for Redundant Backups

Avoiding Data Restore

We should avoid restoring data from a backup system if possible. The data restore process can be destructive and there is usually some data loss from the time of the restore point.

The best way to minimize restoring data from backup systems is to use redundant servers and redundant storage in your production environment. For example, the Windows Distributed File System (DFS) can be used to replicate file data to a mirrored server so that if a file server or storage array fails, the data is still intact and accessible.

While the use of redundant servers and redundant storage can provide protection against certain types of failures, this type of redundancy is not a substitute for a backup system. Imagine if someone makes a mistake modifying a file and you have deployed redundant file servers, that modified file is copied to all of your mirrored servers. The only way to recover the lost data is to restore that file to a previous version.

Redundant backup servers

The next issue to consider when planning a redundant backup system solution is your backup server. In most cases, the backup server is a critical part of the overall backup infrastructure, so you don’t want the backup server to be a single point of failure.

Where redundant backup servers are deployed can vary, based on the specific backup system architecture. But generally you shouldn’t try to deploy parallel backup servers that operate independently of each other, because that’s likely to have backup consistency issues.

If your organization is implementing a disk-based backup system, the best approach is to design a two-step backup process. The first step is to use one backup server to protect your production systems. The second step is to use a second backup server to protect the first backup server. This way if the primary backup server fails, the backup server can be used to take over for the failed backup server and restore the previously backed up data.

Redundant backup media

Another way to protect your backup system through redundancy is to use redundant backup media. There are many different types of redundant media.

If your organization still uses tape backups, you can create two separate backups for each tape. One can focus on ease of access, while the other is sent to another location for safekeeping.

If you’re using disk-based backups, the approach to media redundancy is a little different. One approach is to use disk-to-disk-to-tape backups, where data is copied to disk for backup and then to tape for safekeeping.

The other method is to use mirrored storage. It allows your backup data to be copied to one and the same storage array. It should be noted, however, that this method does not produce backup data in removable media. Since this is the case, a business or organization should consider replicating the contents of the backup server to the cloud or to the data center where the backups are made, as opposed to using a separate hardware backup device in the local data center.

What are the solutions for data backup?

Data backup is the foundation of disaster recovery, and traditional data backup mainly uses built-in or external tape drives for cold backup. However, this method can only prevent human failures such as operational errors, and its recovery time is also very long. In addition to the traditional backup method, many enterprises began to use network backup, recently many people are using a SaaS application called multi-backup, the backup process is very simple, the data back up to the cloud, high security, and is now still free, you can look at the next.