SQL Server Database Space monitoring

  • I am looking for a solution to what one would think would be a common problem. I can't seem to find an answer specific enough anywhere. My problem is this: I work for a company that is in need for a database space monitoring solution. We have probably 15 servers, each with a couple named instances and several databases underneath them. I need to be able to monitor database size for each database in each instance on each server and send an email (probably a daily space check) for all databases that are, say, over 90% full. I need to monitor the file size for each database (data and log), not C: or D: drive space.

    I am having trouble finding a way to check all servers at once. I have found solutions that allow me to check for one instance but I do not want 30 emails a day. I want one consolidated email. I have tried using SQL code but I cannot seem to pass in linked server names very well. And I am new to powershell, but have not seen much out there either.

    Any suggestions would be appreciated!

    Thanks!

  • i'm working on just that

    this should help you get off on the right foot

    CREATE TABLE DB.DatabaseFileUsage

    (

    ID BIGINT IDENTITY(1,1),

    DatabaseName SYSNAME,

    FileID INT,

    FileSizeMB DECIMAL(18,2),

    SpaceUsedMB DECIMAL(18,2),

    FreeSpaceMB DECIMAL(18,2),

    LogicalName SYSNAME,

    FileLocation SYSNAME,

    DateCollected DATE DEFAULT GETDATE(),

    CONSTRAINT PK_DB_DatabaseFileUsage PRIMARY KEY CLUSTERED (ID)

    ) ON DB

    DECLARE @SQL NVARCHAR(MAX)

    SELECT @SQL = REPLACE(

    CAST(

    (

    SELECT 'USE ' + QUOTENAME(name) +';' + CHAR(13) + CHAR(10) +

    'INSERT INTO [DB].[DatabaseFileUsage] (DatabaseName, FileID, FileSizeMB, SpaceUsedMB, FreeSpaceMB, LogicalName, FileLocation)' + CHAR(13) + CHAR(10) +

    'SELECT ' + CHAR(13) + CHAR(10) +

    'DatabaseName = DB_NAME(), ' + CHAR(13) + CHAR(10) +

    'a.FILEID, ' + CHAR(13) + CHAR(10) +

    '[FILE_SIZE_MB] = CONVERT(DECIMAL(12, 2), ROUND(a.size / 128.000, 2)), ' + CHAR(13) + CHAR(10) +

    '[SPACE_USED_MB] = CONVERT(DECIMAL(12, 2), ROUND(fileproperty(a.NAME, ' + CHAR(39) + 'SpaceUsed' + CHAR(39) +') / 128.000, 2)), ' + CHAR(13) + CHAR(10) +

    '[FREE_SPACE_MB] = CONVERT(DECIMAL(12, 2), ROUND((a.size - fileproperty(a.NAME, ' + CHAR(39) + 'SpaceUsed' + CHAR(39) +')) / 128.000, 2)), ' + CHAR(13) + CHAR(10) +

    'a.NAME, a.FILENAME ' + CHAR(13) + CHAR(10) +

    'FROM dbo.sysfiles a;' + CHAR(13) + CHAR(10)

    FROM sys.databases

    FOR XML PATH('')

    )

    AS NVARCHAR(MAX)

    ),

    ' ',CHAR(13) + CHAR(10)

    )

    --SELECT @SQL

    EXECUTE sp_executesql @SQL

    You will then need to do some calculations on the data and build it into sp_send_dbmail

  • We use this to shrink large databases accross many environments via LS's. Donnt have time to customise it to your scenario, but with a bit of tweaking it does what you both want/need.

    USE [master]

    GO

    /****** Object: StoredProcedure [dbo].[sp_ShrinkLargeDBs] Script Date: 03/02/2012 10:40:21 ******/

    SET ANSI_NULLS ON

    GO

    SET QUOTED_IDENTIFIER ON

    GO

    ALTER proc [dbo].[sp_ShrinkLargeDBs]

    AS

    SET NOCOUNT ON

    IF OBJECT_ID('tempdb..#servers') IS NOT NULL drop table #servers

    CREATE TABLE #servers(

    Environment varchar(50),

    SQL_Server_Name varchar(100)

    )

    IF OBJECT_ID('tempdb..#databases') IS NOT NULL drop table #databases

    CREATE TABLE #databases(

    DatabaseName varchar(150),

    LogicalNameNVARCHAR(200),

    Environment varchar(50),

    EnvNameNVARCHAR(50),

    File_Size int,

    File_Free decimal(12, 2),

    File_Free_Percent decimal(12, 1),

    File_Type varchar(10),

    Database_ID int

    )

    DECLARE @server AS VARCHAR(100)

    DECLARE @product as varchar(50)

    DECLARE @sqlstring AS VARCHAR(1000)

    DECLARE @LogicalDBNameAS VARCHAR(100)

    DECLARE @DatabaseNameAS VARCHAR(100)

    DECLARE @QueryTimeoutAS NVARCHAR(MAX)

    DECLARE @QueryResetAS NVARCHAR(MAX)

    -- Populate the servers table

    INSERT INTO #servers (Environment, SQL_Server_Name)

    SELECT product, name FROM sys.servers WHERE is_linked=1 AND name LIKE '%SRV%'

    -- Declare cursor

    DECLARE Server_cursor CURSOR

    FOR SELECT Environment, SQL_Server_Name FROM #servers

    OPEN Server_cursor

    FETCH NEXT FROM Server_cursor

    INTO @product, @server

    WHILE @@FETCH_STATUS = 0

    BEGIN

    SET @sqlstring = '[' + @server + '].master.dbo.sp_GetFullFiles'

    EXEC (@sqlstring)

    SET @sqlstring = 'select database_name, Logical_File_Name as LogicalName, ''' + @product + ''', ''' + @server + ''', file_size_mb, free_space_mb, free_space_percent, file_type, db_id

    FROM [' + @server + '].tempdb.dbo.tFiles

    WHERE database_name NOT IN (''MASTER'',''TEMPDB'',''MODEL'',''MSDB'')

    AND database_name NOT LIKE ''ReportServer%'''

    INSERT #databases (DatabaseName, LogicalName, Environment, EnvName, File_Size, File_Free, File_Free_Percent, File_Type, Database_ID)

    EXEC (@sqlstring)

    FETCH NEXT FROM Server_cursor INTO @product, @server

    END

    CLOSE Server_cursor

    DEALLOCATE Server_cursor

    SET @QueryTimeout = 'sp_configure ''remote query timeout (s)'', 0; reconfigure'

    SET @QueryReset = 'sp_configure ''remote query timeout (s)'', 600; reconfigure'

    -- Uppdate to avoid divide by 0 error

    UPDATE #databases SET file_size = 1 WHERE file_size = 0

    select a.Environment,

    a.DatabaseName as [Database Name],

    CASE File_Type

    WHEN 'ROWS' THEN 'Data File'

    WHEN 'LOG' THEN 'Log File'

    END AS File_type,

    a.file_size as [Size MB],

    a.file_free as [Free MB],

    cast((a.file_free / a.file_size) * 100 as decimal(6,2))as [Free %],

    'EXEC sp_configure ''remote query timeout (s)'',0; reconfigure; EXEC [' + a.EnvName + '].[master].[dbo].[usp_execute_remote_sql] ''USE ' + a.DatabaseName + ';

    DBCC SHRINKFILE ([' + a.LogicalName + '],1)''; EXEC sp_configure ''remote query timeout (s)'', 600; reconfigure;'

    from #databases a

    where a.DatabaseName not like 'ReportServer$%'

    AND a.file_size > 1000

    AND a.file_free > 1000

    --order by a.Environment, a.DatabaseName

    ORDER BY File_type, Environment, [Database Name] desc

    And if you want to run as is you'll need this.

    USE [master]

    GO

    /****** Object: StoredProcedure [dbo].[sp_GetFullFiles] Script Date: 03/02/2012 10:43:45 ******/

    SET ANSI_NULLS ON

    GO

    SET QUOTED_IDENTIFIER ON

    GO

    ALTER proc [dbo].[sp_GetFullFiles]

    AS

    IF OBJECT_ID('tempdb..tFiles') IS NOT NULL drop table tempdb..tFiles

    CREATE TABLE tempdb..tFiles (

    [database_name] [sysname] NOT NULL,

    [db_id] int NOT NULL,

    [file_size_mb] [decimal](12, 2) NULL,

    [space_used_mb] [decimal](12, 2) NULL,

    [free_space_mb] [decimal](12, 2) NULL,

    [free_space_percent] [decimal](12, 1) NULL,

    [autogrowth] [varchar](3) NULL,

    [growth_amount] [varchar](60) NULL,

    [maximum_size] [varchar](60) NULL,

    [file_control] [varchar](10) NULL,

    [file_density] [varchar](6) NULL,

    [file_id] [int] NULL,

    [file_type] [nvarchar](60) NULL,

    [file_state] [nvarchar](60) NULL,

    [logical_file_name] [sysname] NOT NULL,

    [physical_file_name] [nvarchar](260) NOT NULL,

    ) ON [Primary]

    EXEC sp_msforeachdb

    'USE [?] INSERT tempdb..tFiles

    SELECT database_name = ''?''

    , b.database_id

    , file_size_mb = Convert(Decimal(12,2),Round(a.size/128.000,2))

    , space_used_mb = Convert(Decimal(12,2),Round(FileProperty(a.name, ''SpaceUsed'')/128.000,2))

    , free_space_mb = Convert(Decimal(12,2),Round((a.size - FileProperty(a.name, ''SpaceUsed''))/128.000,2))

    , free_space_percent = Convert(Decimal(12,1),100*(a.size - FileProperty(a.name,''SpaceUsed''))/Convert(Decimal(12,2),a.size))

    , autogrowth = Case When a.growth = 0 Then ''Off'' Else ''On'' End

    , growth_amount = Case When a.is_percent_growth = 1 Then Convert(varchar(25), a.growth) + ''%'' Else Convert(varchar(25), Convert(Decimal(12,1), a.growth/128.0)) + '' MB'' End

    , maximum_size = Case When a.max_size = 0 Then ''No Growth Allowed'' When a.max_size = -1 Or a.max_size = 268435456 Then ''Unlimited'' Else Convert(varchar(60), Convert(Decimal(12,2),Round(a.max_size/128.000,2))) + '' MB'' End

    , file_control = Case When a.is_media_read_only = 1 Or a.is_read_only = 1 Then ''Read-Only'' Else ''Read-Write'' End

    , file_density = Case When a.is_sparse = 1 Then ''Sparse'' Else ''Dense'' End

    , a.file_id

    , a.type_desc

    , a.state_desc

    , a.name

    , a.physical_name

    FROM [?].sys.database_files a inner join master.sys.master_files b on a.physical_name collate Latin1_General_CI_AS = b.physical_name collate Latin1_General_CI_AS'

    And just to keep him happy if he should see it, these cripts are mostly by my colleage Jason Morris.

    Adam Zacks-------------------------------------------Be Nice, Or Leave

  • Thank you Ten Centuries but I need something a bit more complex then that. It is a good start but I do have something like that already.

    Adam, I like your query a lot but I was wondering if I need to run this on each instance. I have the linked servers added on the local server but when I try to run exec [dbo].[sp_ShrinkLargeDBs], I get

    Msg 2812, Level 16, State 62, Line 1

    Could not find stored procedure 'master.dbo.sp_GetFullFiles'.

    Msg 7314, Level 16, State 1, Line 1

    The OLE DB provider "SQLNCLI10" for linked server "starling\olympia_sit" does not contain the table ""tempdb"."dbo"."tFiles"". The table either does not exist or the current user does not have permissions on that table.

    Question is, how do I need to setup permissions on the other server/s? (I have only one added for now). I will be looking into how to adapt it to looping through each database.

    Thanks for your help!!

  • I posted two scripts. The second to sp_GetFullFiles. So you need to have deployed that to your target servers (if you intend to run it as is).

    As far as using it, the main Shrink SP should be on a 'master' server that had LS connections to every instance you want to connect to.

    HTH

    Adam Zacks-------------------------------------------Be Nice, Or Leave

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