Data Backup and Recovery Methods

Disk Backup

Traditional Tape Or Disk Backup

Tape backup has been used in some form or another ever since the 1960s. Tape is surprisingly still used today for archiving, long-term cloud storage and large enterprise system backup. The primary benefits of tape are low cost, high capacity and offsite data backup. Disk backup was introduced in the 1990s and grew in popularity rapidly throughout the early 2000s because it offered much more rapid backup and recovery than tape systems. Disk backup also allows users to recover individual files without the need to first restore an entire data set other than backup and restore speed. Traditional disk backup solutions have the advantage of offloading data to the cloud or tape for disaster recovery and/or archiving. Restoring large amounts of data from the cloud or offsite tape is slow, vs SSD drives running in the cloud with object storage solutions. Traditional backup recovery methods can take hours or even days, during which time business operations can be seriously compromised, which can result in crippling revenue loss.

Direct-to-cloud Backup, Cloud-to-cloud Backup, And Saas Backup

cloudWith direct-to-cloud backup, offsite file backups can be uploaded directly to the cloud, thereby eliminating the need for a local device specifically for that purpose. Copying data from one cloud to another is known as a cloud-to-cloud backup, while SaaS backup is backing up data created in SaaS applications like Office 365 or Google G Suite.
Many organizations believe that since SaaS data already exists in the cloud, there is no longer a requirement for backup, which is, however, not true. SaaS application data is just as prone to ransomware attacks and malicious or accidental deletion as onsite data. Backup and recovery in cloud-based software is still in its evolving stage and will continue to do so as more businesses migrate workloads into the cloud.

Business Continuity/Disaster Recovery (BCDR)

Disaster Recovery

Designed to enable fast restores minimizing business downtime, BCDR solutions use virtualization and snapshot technologies to generate and store runnable virtual server images on the cloud or a backup device. In the off chance of the central server failure or other main system outage, business operations are automatically failed over to the backup device or cloud while the main server is being restored, replaced or repaired. Once it is back online and running smoothly, operations are failed back to the primary device. BCDR recovery is much faster than other backup methods, typically measured in minutes instead of hours or even days required of traditional backup tools. BCDR solutions have become extremely popular with businesses of all sizes, but they are most useful for small and medium businesses (SMBs). Failover technologies used to require high management costs and heavy hardware investment in the past, but because of their relatively low-cost today, BCDR solutions have revolutionized SMB data protection.

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