Backup Device (Media Contents Page)

 

Applies To: SQL Server 2016

Use the Backup Device dialog box to view the backup information. This information describes the device, the media, the media set, and the backup set or sets.

To use SQL Server Management Studio to view the contents of a backup device

View information about the individual media, media set, and backup sets.

Media
A disk or set of tapes on which backup information is stored.

Media sequence
Lists the media sequence number, the family sequence number, and the mirror identifier, if any. The physical backup media are each tagged with a media sequence number that indicates the order in which the media were used. The initial backup media is tagged with 1, the second (the first continuation tape) is tagged with 2, and so forth. When the backup set is restored, the media sequence numbers ensure that the operator restoring the backup mounts the correct media in the correct order.

Created on
Displays the creation date and time of the media set.

Media Set
A media set is an ordered collection of backup media to which one or more backup operations have written by using a constant number of backup devices.

Name
Displays the name of the media set, if any.

Description
Displays the description of the media set, if any.

Media family count
Displays the number of families in the media set. Each media set is a collection of one or more media families. All the output to a given single backup device (or group of mirrored backup devices) forms a single media family. Each media set contains one media family per separate device (or group of mirrored devices); for instance, if a media set uses two non-mirrored backup devices, the media set contains two media families.

Backup sets
Displays information about the backup set or sets contained on the media. A backup set is the result of a successful backup operation, whose content is distributed among the media on the set of backup devices.

HeaderValues
NameThe name of the backup set.
TypeThe backed-up object: Database, File, or <blank> (for transaction logs).
ComponentThe type of backup performed: Full, Differential or Transaction Log.
ServerThe name of the instance of the Database Engine that performed the backup operation.
DatabaseThe name of the database that was backed up.
PositionThe position of the backup set in the volume.
DateThe date and time when the backup operation finished, presented in the regional setting of the client.
SizeThe size of the backup set in bytes.
User NameThe name of the user who performed the backup operation.
ExpirationThe date and time the backup set expires.

Backup Devices (SQL Server)
Media Sets, Media Families, and Backup Sets (SQL Server)

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