A Backup and Disaster Recovery (BDR) is the combination of disaster recovery solutions and data backup. Generally, they ensure a company’s business continuity. Surprisingly, disaster recovery and data backup are not the same. In fact, backing up without recovery in mind is equivalent to not backing up. In addition, there are other steps you have to take to restore your data if you need your backup successfully, such as assembling the right recovery environment (the proper storage, servers, and operating systems) and the right people, processes, and tools to bring back that backed up data.
All in all, all computer hardware fails. Undeniably, it is a fact of life. Whether from an accident or age, data loss is inevitable when hardware fails. Furthermore, an effective business continuity plan and BDR (Backup & Disaster Recovery) solution are essential to virtually every business today.
Without a doubt, no one can predict the future; hard drives malfunction unpredictably, cyber-attacks rise, and natural disasters may strike with little to no warning. However, we can back up data to ensure that it is secure and quickly recoverable. So downtime is minimal when the unforeseeable happens.
Indeed, backup and Data Recovery have come a long way. Correspondingly, the days of media, vaulted backup and manual recovery methods are long gone. Albeit, today’s BDR solutions provide secure, fast, monitored, continuous backup and rapid data restoration through a cloud-based architecture. Actually, you can cater to any business need with various options and ways available in the marketplace.
A full backup is a method where you will back up all the selected files and folders. Generally, people use it as a first backup and is then followed up with subsequent incremental or differential backups. When you perform a full backup, it will contain a complete backup of all selected data.
Differential backup is a process that begins with a full backup and subsequently backs up all changes made after the previous full backup. Furthermore, this allows much faster backups (but slower restores) and makes more efficient use of storage capacity.
Incremental backup is the same as a differential backup, with one crucial difference -after the first full backup, subsequent backups store changes that have been made since the previous backup cycle.
Mirror backup is a real-time duplicate of the source being backed up. When you delete a file in the source with mirror backups, that file will also be deleted in the mirror backup. Also, you should use mirror backups with caution because a file can be deleted accidentally, sabotaged, or through a virus in the mirror.
A cloud or remote backup is an offsite backup that allows users to access, restore, or administer backups at the source or offsite locations. In addition, data is backed up in the cloud (either directly or via a local appliance); this type of backup provides some of the most substantial protection against unplanned downtime and natural disasters.
Overall, hybrid backup integrates cloud and local backups for disaster recovery, rapid file restores, and delivery system recovery. In detail, the combination of cloud and local backup is hybrid backup, where the local backup is typically a NAS device, network shared drive, or USB drive.
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With this intention, data backup software used to be with tapes copied in a machine and stored in a physical vault, typically offsite. In the long run, that process did not change much. However, on-site backup solutions are almost as old as computing itself; they are trustworthy, tried, and accurate. Whether it is a database that needs backing up, unstructured files, applications, or anything in between, a backup solution can get the job done.
Nonetheless, the resultant backup is a collection of backup media that gets put in a vault that may go to disk, tape, or optical media. Accordingly, on-site backup has always had an offsite component to keep that media safe, which has consisted of somebody taking the backed-up media and moving it elsewhere. While this is often called offsite backup, it is more appropriately “offsite backup media vaulting.”
Yet, this vaulting form of offsite backup meant either moving media or, more progressively, creating a storage repository at a remote site after the backup was complete. Nonetheless, this either limited the bandwidth available to business users or modified the time frame in which a backup window could occur. Because it was storage was still prohibitively expensive to anyone but large enterprises.
By the time, the evolution of backup brought a new generation of offsite backup. In detail, the solution provider backs up data to an offsite, hosted platform.
Besides, the same evolution has merged backup with cloud computing. Due to this, it took that previous generation into this generation. By the time, bandwidth has increased, and it has become possible to use third-party services to handle online offsite backup. Also, hardware has become abstracted through virtualization. Additionally, the combination of increased bandwidth and commoditized hardware, coupled with the natural evolution of business continuity software, has enabled offsite backup and disaster recovery solutions to offer continuous data protection.
Neither offsite nor on-site backup is enough if a disaster strikes, which has been the big driver behind cloud-based offsite backup. Undeniably, the data on backup media (offsite or on-site) will not be enough to recover fully if a disaster happens. In fact, you may need replacement computer systems to restore the data.