BI SQL # 276 : SQL Server DBA Scripts : Find all DB IO with Rank
Hi Folks,
In this article we are going to cover How to Find all DB IO with Rank.
In this post we are going to discuss following points:
- Problem Statement of SQL Script:
- Description of SQL Script:
- SQL Script Output Column
- SQL Script Code
- User Level to execute
Problem Statement of SQL Script:
How to Find all DB IO with Rank ?
Description of SQL Script:
This script will find all DB IO with Rank.
SQL Script Output Column
SQL Script Code
WITH DBIO AS ( SELECT DB_NAME(IVFS.database_id) AS db ,CASE WHEN MF.type = 1 THEN 'log' ELSE 'data' END AS file_type ,SUM(IVFS.num_of_bytes_read + IVFS. num_of_bytes_written) AS IO ,SUM(IVFS.io_stall) AS io_stall FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS IVFS INNER JOIN sys.master_files AS MF ON IVFS.database_id = MF. database_id AND IVFS.file_id = MF.file_id GROUP BY DB_NAME(IVFS.database_id) ,MF.[type] ) SELECT db ,file_type ,CAST(1. * IO / (1024 * 1024) AS DECIMAL(12, 2)) AS io_mb ,CAST(io_stall / 1000. AS DECIMAL(12, 2)) AS io_stall_s ,CAST(100. * io_stall / SUM(io_stall) OVER () AS DECIMAL(10, 2)) AS io_stall_pct ,ROW_NUMBER() OVER ( ORDER BY io_stall DESC ) AS rn --into DBIOStallWithRank FROM DBIO ORDER BY io_stall DESC
User Level to execute
- 300
Hope you will like How to Find all DB IO with Rank.
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