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What does full backup mean?
A full backup is the process of creating one or more copies of all organizational data files in a single backup operation to protect them. Before the full backup process, a data protection specialist such as a backup administrator designates the files to be duplicated — or all files are copied.
What are the advantages of full backup?
To summarize, the advantages of making full backups are:
- Fast data recovery in case of disaster;
- Better storage management, since the entire data set is stored in a single backup file.
What are the disadvantages of back up?
Disadvantages
- Redundant backups- since most files rarely change each full backup is merely a copy of the last which means a lot of storage space is wasted.
- Longer to perform- as everything is backed up all at once it takes longer than other forms of backup.
What are the different types of copy only backups?
The types of copy-only backups are as follows: Copy-only full backups (all recovery models) A copy-only backup cannot serve as a differential base or differential backup and does not affect the differential base. Restoring a copy-only full backup is the same as restoring any other full backup.
What happens when you restore a copy only backup?
Restoring a copy-only full backup is the same as restoring any other full backup. Copy-only log backups (full recovery model and bulk-logged recovery model only)
Can a full backup be linked to a differential backup?
After taking the full backup, if you take a Differential backup that backup has a DatabaseBackupLSN which matches that of the Full backup, and therefore SQL can link the two together (eg it knows from those LSNs that the diff followed the full).
When to use copy only backup in SQL Server?
A request comes in at 9 am to have a copy of your DB placed on a test server. You want to take the backup without breaking your log chain or disrupting your backup jobs. This is when a copy-only backup is taken. The copy only backup will not disrupt your regular backup sets.