Contents
Is there an online restore of filegroup B?
Online restore of filegroup B. Files in filegroup B must be restored. The database administrator restores the backup of filegroup B taken after filegroup B became read-only and before the partial backup. All filegroups are now online.
What does it mean to do partial backup in SQL Server?
SQL Server provides partial backups to accomplish this task. Let’s explore the partial backup in the next section. A partial backup allows taking backup for read-write filegroups data for the SQL Server database. It does not include read-only filegroup data in the partial backups.
When do we need to recover data from multiple filegroups?
There are also times when we have data split across several filegroups and we have different RTO (Recovery Time Objective) for each filegroup such that in case of a disaster, the most critical filegroup needs to be recovered as soon as possible while the rest can be done a little later.
How does a piecemeal restore sequence work in ADB?
A piecemeal restore sequence restores and recovers a database in stages at the filegroup level, starting with the primary and all read/write, secondary filegroups. In this example, a database named adb, which uses the full recovery model, contains three filegroups. Filegroup A is read/write, and filegroup B and filegroup C are read-only.
Where does the data go in a partial backup?
In this article. Instead, for a read-write database, a partial backup contains the data in the primary filegroup, every read-write filegroup, and, optionally, one or more read-only files. A partial backup of a read-only database contains only the primary filegroup.
How to restore the three filegroups in one go?
IF THE BACKUPS ARE IN A SHARED LOCATION ACCESSIBLE BY THE NEW SERVER, YOU CAN REFERENCE THAT LOCATION IN THE RESTORE COMMAND BELOW –STEP#2: RESTORING THE THREE FILEGROUPS: PRIMARY, CRITICAL AND AVERAGE IN ONE GO EXCEPT THE ‘OLD’ FILEGROUP FROM THE FULL BACKUP AND MOVING TO ANOTHER LOCATION.