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Backup speed details
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Introduction
Recovery models
Main backup types
Backing up the database files by copying
The transaction log
Transaction log restore sequence
Log sequence numbers
Truncating and shrinking the transaction log
Backing up the tail
Inside the transaction log
So, what's in a backup file?
Test: A full backup does not contain deleted data
Verifying backup files
Verifying backup files on a budget
Cumulative backups
Recovering individual tables
Backup and restore history details
Backup reads and writes
Speeding up backups
Backup speed details
Speeding up restores
Restore state affects speed too
Backup and restore rights
Log shipping
Log shipping in SQL Server 2000
Setting up log shipping using Enterprise Manager
Checking the set up
Failover
Log shipping in SQL Server 2005
Setting up log shipping using Management Studio
Checking the set up
Log shipping status report
Failover
Log shipping in SQL Backup
Using the CopyTool utility
Failover
3rd party backup applications
VDI
VDI versions
VDI errors
Common SQL Backup issues
Installation checklist
Setting up rights
Configuring service rights
Backup data
Hanging issues
Common errors


The speed of your backups can be retrieved from the msdb..backupset table. The backup_start_date, backup_finish_date, and backup_size fields provide the necessary details to calculate the backup speed. Note that the backup size is not necessarily identical to the database size, as SQL Server does not back up data pages that contain deleted data. See this article for details.

Here's a script that displays the backup speed for all your databases (at least for the backups whose details are still present in the msdb tables):

SELECT database_name, backup_start_date, CAST(CAST((backup_size / (DATEDIFF(ss, backup_start_date, backup_finish_date))) / (1024 * 1024) AS NUMERIC(8, 3)) AS VARCHAR(16)) + ' MB/sec' speed
FROM msdb..backupset
ORDER BY database_name, backup_start_date


Document history
11/17/2008    Initial release.    
 
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