Waitopedia is a comprehensive resource of information about SQL Server waits.

The description shown below is the top answer as voted by the Spotlight community.

The charts are based on 2.1 TB of data collected from 4207 instances uploaded by 323 Spotlight users over an 8 week period.


Category: Other
SQL Server versions: 2005, 2008, 2008 R2, 2012, 2014, 2016, 2017


2 Answers


Occurs when a task is waiting to access a file when an external backup is active. This is reported for each waiting user process. A count larger than five per user process may indicate that the external backup is taking too much time to finish. Information from Microsoft®


Used to indicate a worker is waiting to process I/O for a database or log file associated with a SNAPSHOT BACKUP


This wait has never occurred recently

DISKIO_SUSPEND has not occurred recently on 4207 instances checked.

Prevalence of DISKIO_SUSPEND across the Spotlight Population