本篇是上一篇SQL Server Log文件对磁盘的写操作大小是多少的续，使用XEvent收集SQL Server Data文件和Log文件的写大小，脚本如下：
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DECLARE @DBNAME VARCHAR(256)SET
@DBNAME = ‘myDB‘DECLARE @sqlcmd NVARCHAR(MAX) = ‘IF EXISTS(SELECT * FROM sys.server_event_sessions WHEREname=‘‘filewritecompleted‘‘) DROP EVENT SESSION [filewritecompleted] ON SERVER;CREATE EVENT SESSION [filewritecompleted]ON SERVERADD EVENT sqlserver.file_write_completed (WHERE (database_id = ‘
+ CAST(DB_ID(‘‘+@DBNAME+‘‘) AS
VARCHAR(3)) + ‘))ADD TARGET package0.asynchronous_file_target( SET filename=‘‘D:\XEvent\filewritecompleted.xel‘‘, metadatafile=‘‘D:\XEvent\filewritecompleted.xem‘‘)WITH (MAX_MEMORY = 8192KB, EVENT_RETENTION_MODE = ALLOW_SINGLE_EVENT_LOSS, STARTUP_STATE = ON)‘EXEC(@sqlcmd)GO ALTER EVENT SESSION filewritecompletedON SERVERSTATE=STARTGO WAITFOR DELAY ‘00:05:00‘ ALTER EVENT SESSION filewritecompletedON SERVERSTATE=STOPGO USE tempdbGO SELECT
CAST(event_data AS
XML) AS event_dataINTO
TargetEventsFROM
sys.fn_xe_file_target_read_file(‘D:\XEvent\filewritecompleted*.xel‘, ‘D:\XEvent\filewritecompleted*.xem‘, NULL, NULL) SELECT
event_data.value(‘(event/@name)[1]‘, ‘varchar(50)‘) AS
event_name , DATEADD(hh, DATEDIFF(hh, GETUTCDATE(), CURRENT_TIMESTAMP), event_data.value(‘(event/@timestamp)[1]‘, ‘datetime2‘)) AS
[timestamp] , COALESCE(event_data.value(‘(event/data[@name="database_id"]/value)[1]‘, ‘int‘), event_data.value(‘(event/action[@name="database_id"]/value)[1]‘, ‘int‘)) AS
database_id , event_data.value(‘(event/data[@name="mode"]/text)[1]‘, ‘nvarchar(4000)‘) AS
[mode] , event_data.value(‘(event/data[@name="file_handle"]/value)[1]‘, ‘nvarchar(4000)‘) AS
[file_handle] , event_data.value(‘(event/data[@name="offset"]/value)[1]‘, ‘bigint‘) AS
[offset] , event_data.value(‘(event/data[@name="file_id"]/value)[1]‘, ‘int‘) AS
[file_id] , event_data.value(‘(event/data[@name="filegroup_id"]/value)[1]‘, ‘int‘) AS
[filegroup_id] , event_data.value(‘(event/data[@name="size"]/value)[1]‘, ‘bigint‘) AS
[size]INTO
ResultsFROM
TargetEvents select
* from Results --Log File Write SizeSELECT
size
, COUNT(*) AS
cnt , LTRIM(CAST(COUNT(*) * 1.0 / ( SELECT
COUNT(*) FROM
Results WHERE
file_id = 2 ) * 100 AS
NUMERIC(18, 4))) + ‘%‘
AS
ratioFROM
ResultsWHERE
file_id = 2GROUP BY
sizeORDER BY CAST(COUNT(*) * 1.0 / ( SELECT
COUNT(*) FROM
Results WHERE
file_id = 2 ) * 100 AS
NUMERIC(18, 4)) desc --Data File Write SizeSELECT
size
, COUNT(*) AS
cnt , LTRIM(CAST(COUNT(*) * 1.0 / ( SELECT
COUNT(*) FROM
Results WHERE
file_id != 2 ) * 100 AS
NUMERIC(18, 4))) + ‘%‘
AS
ratioFROM
ResultsWHERE
file_id != 2GROUP BY
sizeORDER BY CAST(COUNT(*) * 1.0 / ( SELECT
COUNT(*) FROM
Results WHERE
file_id = 2 ) * 100 AS
NUMERIC(18, 4)) desc --DROP TABLE tempdb.dbo.TargetEvents, tempdb.dbo.Results |
在一个OLTP结果如下：
Log File Write Size：
Data File Write Size ：
用XEvent收集，的确要比之前的方法简单很多，此方法感谢一位Cookies_Tang网友提醒。
XEvent – SQL Server Log文件对磁盘的写操作大小是多少,布布扣,bubuko.com
XEvent – SQL Server Log文件对磁盘的写操作大小是多少
原文：http://www.cnblogs.com/lonelyxmas/p/3752731.html