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Determine Physical Device Name for a backupset. Expand / Collapse
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Posted Tuesday, September 30, 2008 10:14 PM
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I am running the folowing query:

SELECT TOP 1 M.physical_device_name
FROM msdb..backupset S
JOIN msdb..backupmediafamily M ON M.media_set_id=S.media_set_id
WHERE S.database_name = 'Gecko'
AND s.type = 'D'
ORDER by backup_start_date DESC

which returns the following physical_device_name: '{80F398C7-58AC-4DC6-BC15-0B2BE1A62C8E}8'

The physical address is in fact: 'E:\MSSQL\Backup\Gecko_db_200809301808.BAK'

What would this guid be pointing at?
Post #578834
Posted Wednesday, October 1, 2008 4:26 AM


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That query should work... are you using any 3rd party tools to run the backup?


Post #578944
Posted Wednesday, October 1, 2008 4:51 PM
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The backup is run by a 'Database Maintenance Plan' (which I did not setup) with a vanilla set of parameters for a daily backup.

However, a clue to the oddity may be in the following BackupMediaFamily record for the backup:

media_set_id: 14133
family_sequence_number: 1
media_family_id: B3A6F86C-0000-0000-0000-000000000000
media_count: 1
logical_device_name: NULL
physical_device_name: 80F398C7-58AC-4DC6-BC15-0B2BE1A62C8E}8
device_type: 7
physical_block_size: 1024


I do not know what device_type: 7 is?

thanks
Post #579422
Posted Thursday, October 2, 2008 2:50 AM


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Device type 7 is a virtual device.

Are you doing other backups (as well as via a maintenance plan) using 3rd party tools e.g. Veritas Backup Exec?



Post #579522
Posted Thursday, October 2, 2008 6:39 PM
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Thanks for that

The database is first backed up by Maintenance Plan to a physical file, and then by Backup Exec SQL Server agent. Just had to look a little further.

I now know that virtual device backups will return a guid....

This issue is now closed.
Post #580005
Posted Thursday, August 2, 2012 4:52 PM
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Jamie Johnson-406551 (10/2/2008)
Thanks for that

The database is first backed up by Maintenance Plan to a physical file, and then by Backup Exec SQL Server agent. Just had to look a little further.

I now know that virtual device backups will return a guid....

This issue is now closed.


can you please help me how to resolve this issue.

I have same problem

Please

Post #1339572
Posted Wednesday, September 17, 2014 3:50 AM
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I encoutered same problem in jobs using maintenance plans with standard backup tasks.Resave maintenance plans solved the problem.
Post #1614344
Posted Wednesday, September 17, 2014 8:28 AM
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I encountered same problem. The rows in msdb.dbo.backupmediafamily with
physical_device_name in format '{76F.........}9} results of periodic backups databases by VMReplicator . in error log of instance you may find :
Database backed up: Database .... device informationFILE=1,TYPE=VIRTUAL_DEVICE:{'{76F.......}9'}) .Solution probably is ignore rows with device_type=7 in msdb.dbo.backupmediafamily when you
look for "last" local backup.
Post #1614471
Posted Wednesday, June 22, 2016 9:43 AM
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We recently implemented a new 3rd party backup device but and now we intend to move from he old backup device which seems to be failing .
Problem- When a backup fails , we currently do not know which of the backup device it was on without doing further digging because both backup devices show up as GUIDS with random hexadecimals as the physical device name.

Is there any way/script that could Alias these GUIDS as lets say "Tivoli or 'Redgate" please assistance would be appreciated

Desired outcome- To be able to run a sql script to actually confirm that a certain database is actually backed up to Tivoli
Post #1796535
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