Discuss the characteristics, advantages, and disadvantages and Create one multiple choice question for each of the following. Consider following backup strategies in DRP: Full Incremental Differential Electronic vaulting
Discuss the characteristics, advantages, and disadvantages and Create one multiple choice question for each of the following. Consider following backup strategies in DRP:
Full
Incremental
Differential
Electronic vaulting
ANSWER :
FULL BACKUP :
Characteristics, advantages, and disadvantages of Full backup :
The most basic and complete type of backup operation is a full backup. As the name implies, this type of backup makes a copy of all data to a storage device, such as a disk or tape.
The primary advantage to performing a full backup during every operation is that a complete copy of all data is available with a single set of media. This results in a minimal time to restore data, a metric known as a recovery time objective.
However, the disadvantages are that it takes longer to perform a full backup than other types (sometimes by a factor of 10 or more), and it requires more storage space.
Thus, full backups are typically run only periodically. Data centers that have a small amount of data (or critical applications) may choose to run a full backup daily, or even more often in some cases. Typically, backup operations employ a full backup in combination with either incremental or differential backups.
Advantages of full backups
Restore is the fastest.
The entire backed-up data is stored in a single file (better storage management) .
Disadvantages of full backups
Backing up is the slowest compared to other backup types.
The storage space requirements are the highest (compared to incremental backup or differential backup.
Considering how cheap storage devices are now, this is a low impact disadvantage.
Multiple choice question :
Which of the following backup run periodically?
a) Incremental b) Electronic vaulting
c) Full d) Differential
Ans: Option c
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