This post talks about step by step approach to capture the disk space using T-SQL. This is a request from one of SQL enthusiast. The requirement is to do with T-SQL to monitor disk space of remote servers. Pre-requisites are Enable XP_CMDShell Enable Ole automation on all servers Step by Step procedures to be done on centralized server is as follows Enable XP_CMDShell List all SQL Instances in c:\Server.txt Enable ole automation on listed servers Table Creation [TLOG_SpaceUsageDetails] Copy and Paste T-SQL script in C:\SpaceCheck.sql Execute dynamic sqlcmd from SSMS select the output by querying TLOG_SpaceUsageDetails The details are as follows Enable XP_CMDSHELL on Centralized Server /************************* --Enable XP_CMDShell -SSMS *****************************/ sp_configure 'show advanced options', 1; GO RECONFIGURE; GO sp_configure 'xp_cmdShell', 1; GO RECONFIGURE; GO Enable Ole Automation in all the server from where you wanted to collected the data /************************* --Enable Ole Automation on all the listed servers –SSMS. In this example ABC,DEF,EFG *****************************/ sp_configure 'show advanced options', 1; GO RECONFIGURE; GO sp_configure 'Ole Automation Procedures', 1; GO RECONFIGURE; GO /************************* --List all SQL Instances in c:\Server.txt *****************************/ ABC DEF EFG Centralized Server – Table Creation /************************* --Table Creation --SSMS *****************************/ CREATE TABLE [dbo].[TLOG_SpaceUsageDetails]( [space_id] [int] IDENTITY(1,1) NOT NULL, [servername] [varchar](100) NULL, [LogDate] [varchar](10) NULL, [drive] [char](1) NULL, [FreeSpaceMB] [int] NULL, [TotalSizeMB] [int] NULL, [percentageOfFreeSpace] [int] NULL ) ON [PRIMARY] GO SET ANSI_PADDING OFF GO ALTER TABLE [dbo].[TLOG_SpaceUsageDetails] ADD DEFAULT (CONVERT([varchar](10),getdate(),(112))) FOR [LogDate] Centralized Server – Create a file spacecheck.sql and copy and paste the below code DECLARE @hr INT , @fso INT, @drive CHAR(1), @odrive INT, @TotalSize VARCHAR(20), @MB NUMERIC , @FreeSpace INT, @free INT, @RowId_1 INT, @LoopStatus_1 SMALLINT, @TotalSpace VARCHAR(10), @Percentage VARCHAR(3), @drive1 varchar(2), @TotalSizeMB varchar(10), @FreeSpaceMB varchar(10), @percentageOfFreeSpace varchar(10), @RowId_2 INT, @LoopStatus_2 SMALLINT, @DML nvarchar(4000) SET NOCOUNT ON ----------------------------------------------------------------------------------------------- --Table to Store Drive related information ----------------------------------------------------------------------------------------------- CREATE TABLE #drives ( id INT IDENTITY(1,1) PRIMARY KEY, drive CHAR(1), FreeSpaceMB INT , TotalSizeMB INT NULL, percentageOfFreeSpace INT ) ----------------------------------------------------------------------------------------------- --Inserting the output of xp_fixeddrives to #SpaceSize Table ----------------------------------------------------------------------------------------------- INSERT #drives(drive,FreeSpaceMB) EXEC master.dbo.xp_fixeddrives ----------------------------------------------------------------------------------------------- --Using the sp_OACreate, sp_OAMethod and sp_OAGetProperty system stored procedures to create Ole Automation (ActiveX) applications that can do everything an ASP script can do*/ --Creates an instance of the OLE object ----------------------------------------------------------------------------------------------- EXEC @hr=sp_OACreate 'Scripting.FileSystemObject',@fso OUT SET @MB = 1048576 SET @RowId_1 = 1 SET @LoopStatus_1 = 1 ----------------------------------------------------------------------------------------------- --To Get Drive total space ----------------------------------------------------------------------------------------------- WHILE (@LoopStatus_1 0) BEGIN SELECT @drive=drive, @FreeSpace=FreeSpaceMB FROM #drives WHERE ( ID = @RowId_1 ) IF ( @@ROWCOUNT = 0 ) BEGIN SET @LoopStatus_1 = 0 END ELSE BEGIN EXEC @hr = sp_OAMethod @fso,'GetDrive', @odrive OUT, @drive EXEC @hr =sp_OAGetProperty @odrive,'TotalSize', @TotalSize OUT UPDATE #drives SET TotalSizeMB=@TotalSize/@MB WHERE drive=@drive UPDATE #drives SET percentageOfFreeSpace=(@FreeSpace/(TotalSizeMB*1.0))*100.0 WHERE drive=@drive END SET @RowId_1 = @RowId_1 + 1 END SELECT @RowId_2=1,@LoopStatus_2=1 --SELECT @@servername,drive,TotalSizeMB,FreeSpaceMB,percentageOfFreeSpace FROM #drives WHILE (@LoopStatus_2 0) BEGIN SET @DML='' SELECT @drive1=drive, @FreeSpace=FreeSpaceMB, @TotalSizeMB=TotalSizeMB, @FreeSpaceMB=FreeSpaceMB, @percentageOfFreeSpace=percentageOfFreeSpace FROM #drives WHERE ( ID = @RowId_2 ) IF ( @@ROWCOUNT = 0 ) BEGIN SET @LoopStatus_2 = 0 END ELSE BEGIN SET @DML=@DML+ 'insert into TLOG_SpaceUsageDetails(servername,drive,TotalSizeMB,FreeSpaceMB,percentageOfFreeSpace)values('+''''+@@servername+''''+','+''''+@drive1+''''+','+''''+@TotalSizeMB+''''+','+''''+@FreeSpaceMB+''''+','+''''+@percentageOfFreeSpace+'''' +')' END PRINT @DML SET @RowId_2 = @RowId_2 + 1 END drop table #drives Centralized Server - Execute the below code in SSMS – replace below code to valid centralized server name . SQL MASTER..XP_CMDSHELL 'for /f %j in (c:\server.txt ) do sqlcmd -S %j -i c:\SpaceCheck.sql -E c:\SpaceDetails.sql' GO MASTER..XP_CMDSHELL 'sqlcmd -S CentralizedServerName -i c:\spacedetails.sql -E' Ouptut:-
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