Backups
Every business’ infrastructure and systems are unique. Our job is to build a backup and recovery system that’s right for your business.
Our flexible replication and backup solutions, along with personalized expert assistance, help ensure your applications and data are fully protected against incidents, from power outages to data corruption to natural disasters.
OPUS Backup & Replication offers:
– Recovery of single documents, entire databases, or complete systems
– Deduplication for efficient backup storage
– Application replication and data backup from virtually anywhere
– Secure storage options including cloud, disk and tape replication to ensure you get the best solution—at the right cost—to match the importance of each application
– Guarantees for meeting recovery time and recovery point objectives
– Partially or fully managed testing and recovery
– A web interface for multi-location management
– Enterprise-class infrastructure and processes compliant with a broad range of general and industry-specific regulatory requirements
– The three main Backup Chain Methods that commonly exist are:
Full Backup Method
This method is the first, most basic, form of a backup chain. It simply takes a complete backup of a system, but:
– Does not allow for continual archiving
– Typically has a high demand on system resources
– Takes a long amount of time to perform
– This method is frequently used in legacy tape backup solutions where a tape is regularly injected into a system by a person on site, and then formatted and set to receive the full backup.
Differential Chain Method
With this method, a full backup is performed first. Then, subsequent backups are performed, writing the differences between the system’s present state and the state the system was in during its last full backup.
– The integrity of the backups taken is not as likely to be impacted by corruption
– Backups may grow to the size of the original full backup
– Becomes inefficient over time, as eventually this system suffers the same drawbacks that the full backup method encounters
Incremental Backup Method
This is the most commonly found modern backup solution in use today. With this method, a full backup, also referred to as the base image, is created first. Then each subsequent backup performed becomes an incremental recovery point.
– The incremental points contain only the changes that have been made to the system since the last backup was performed
– Each recovery point builds off of the last recovery point
– Uses far less storage than what is seen in Full and Differential Backup solutions
– If one recovery point is corrupted, subsequent recovery points taken lose their integrity until a new full base image is created
|
Backup Types |
What is Backed Up |
Advantages |
Disadvantages |
|
Full Backup |
All Data |
High Integrity |
Low Availability |
|
Differential Backup |
All Data Changed since the Full Backup was performed |
Above Average Integrity |
Average Availability at first but eventually Low Availability |
|
Incremental Backup |
All Data Changed since last Incremental Backup was performed |
Average Integrity |
Average Availability |
|
Inverse Chain Technology |
All Data Changed since the last backup was performed |
High Integrity, High Availability |