---
title: "SQL Server, Backup Device Object | Microsoft Docs"
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# SQL Server, Backup Device Object
  The **Backup Device** object provides counters to monitor Microsoft [!INCLUDE[ssNoVersion](../includes/ssnoversion-md.md)] backup devices used for backup and restore operations. Monitor backup devices when you want to determine the throughput or the progress and performance of your backup and restore operations on a per device basis. To monitor the throughput of the entire database backup or restore operation, use the **Backup/Restore Throughput/sec** counter of the [!INCLUDE[ssNoVersion](../includes/ssnoversion-md.md)] **Databases** object. For more information, see [SQL Server, Databases Object](../../2014/database-engine/sql-server-databases-object.md).  
  
 This table describes the [!INCLUDE[ssNoVersion](../includes/ssnoversion-md.md)] **Backup Device** counter.  
  
|SQL Server Backup Device counters|Description|  
|---------------------------------------|-----------------|  
|**Device Throughput Bytes/sec**|Throughput of read and write operations (in bytes per second) for a backup device used when backing up or restoring databases. This counter exists only while the backup or restore operation is executing.|  
  
## See Also  
 [Backup Devices (SQL Server)](../../2014/database-engine/backup-devices-sql-server.md)   
 [Monitor Resource Usage (System Monitor)](../../2014/database-engine/monitor-resource-usage-system-monitor.md)