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Update dba-config.sql #9

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311 changes: 160 additions & 151 deletions DBA/dba-config.sql
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
/*****************************************************************
C/*****************************************************************
-----------------------
T-SQLtools - DBA-Config
-----------------------
Expand Down Expand Up @@ -59,22 +59,36 @@ DECLARE @TempfileSize nvarchar(100) = '100MB'

******************************************************************/

-- Global Declarations
DECLARE @MinMem int
DECLARE @MaxMem int
DECLARE @P_MAXDOP INT
DECLARE @CostThresHold INT
DECLARE @DBfile nvarchar(500)
DECLARE @Logfile nvarchar(500)
DECLARE @Backup NVARCHAR(500)
DECLARE @TempfilePath nvarchar(500) -- its mandatory
DECLARE @TempfileSize nvarchar(100)


-- ========================================
-- SQL Server Configuration Script
-- ========================================

-- Variable Declarations & Initialization
-- ========================================
-- SQL Server Configuration Script
-- ========================================

-- Variable Declarations & Initialization
DECLARE
@MinMem INT = 0,
@MaxMem INT = 90,
@P_MAXDOP INT,
@CostThreshold INT = 50,
@DBfile NVARCHAR(500),
@Logfile NVARCHAR(500),
@Backup NVARCHAR(500),
@TempfilePath NVARCHAR(500), -- MANDATORY: Set before execution
@TempfileSize NVARCHAR(100) = '100MB',
@MaximumMemory INT;

-- Enable advanced options
EXEC sp_configure 'show advanced options', 1;
RECONFIGURE;

-- Other Settings as per the Best Practice
EXEC sp_configure 'index create memory', 0
-- ==========================
-- General Best Practice Settings
-- ==========================
EXEC sp_configure 'index create memory', 0;
RECONFIGURE;
EXEC sp_configure 'min memory per query', 1024;
RECONFIGURE;
Expand All @@ -87,142 +101,137 @@ RECONFIGURE;
EXEC sp_configure 'fill factor', 0;
RECONFIGURE;
EXEC sp_configure 'backup compression default', 1;
RECONFIGURE WITH OVERRIDE ;

-- Setting up Min/Max SQL Memory
SET @MinMem = coalesce(nullif(@MinMem, ''), 0)
DECLARE @MaximumMememory int
SET @MaxMem = coalesce(nullif(@MaxMem, ''), 90)
Select @MaximumMememory=(select ([total_physical_memory_kb] / 1024 * @MaxMem/100) as totalmin
FROM [master].[sys].[dm_os_sys_memory])
Exec sp_configure 'min server memory', @MinMem;
Exec sp_configure 'max server memory', @MaximumMememory;

-- Setting up MAX DOP and Cost Threshold limit
DECLARE @hyperthreadingRatio bit
DECLARE @logicalCPUs int
DECLARE @HTEnabled int
DECLARE @physicalCPU int
DECLARE @SOCKET int
DECLARE @logicalCPUPerNuma int
DECLARE @NoOfNUMA int
DECLARE @MaxDOP int

select @logicalCPUs = cpu_count -- [Logical CPU Count]
, @hyperthreadingRatio = hyperthread_ratio -- [Hyperthread Ratio]
, @physicalCPU = cpu_count / hyperthread_ratio -- [Physical CPU Count]
, @HTEnabled = case
when cpu_count > hyperthread_ratio
then 1
else 0
end
-- HTEnabled
from sys.dm_os_sys_info
option
(recompile);

select @logicalCPUPerNuma = COUNT(parent_node_id)
-- [NumberOfLogicalProcessorsPerNuma]
from sys.dm_os_schedulers
where [status] = 'VISIBLE ONLINE'
and parent_node_id < 64
group by parent_node_id
option
(recompile);

select @NoOfNUMA = count(distinct parent_node_id)
from sys.dm_os_schedulers
-- find NO OF NUMA Nodes
where [status] = 'VISIBLE ONLINE'
and parent_node_id < 64
SET @P_MAXDOP = coalesce(nullif(@P_MAXDOP, ''), (select
--- 8 or less processors and NO HT enabled
case
when @logicalCPUs < 8
and @HTEnabled = 0
then CAST(@logicalCPUs as varchar(3))
--- 8 or more processors and NO HT enabled
when @logicalCPUs >= 8
and @HTEnabled = 0
then 8
--- 8 or more processors and HT enabled and NO NUMA
when @logicalCPUs >= 8
and @HTEnabled = 1
and @NoofNUMA = 1
then CAST(@logicalCPUPerNuma / @physicalCPU as varchar(3))
--- 8 or more processors and HT enabled and NUMA
when @logicalCPUs >= 8
and @HTEnabled = 1
and @NoofNUMA > 1
then CAST(@logicalCPUPerNuma / @physicalCPU as varchar(3))
else ''
end as Recommendations
))
SET @CostThresHold = coalesce(nullif(@CostThresHold, ''), 50)
EXEC sp_configure 'max degree of parallelism', @P_MAXDOP
EXEC sp_configure 'cost threshold for parallelism', @CostThresHold
;

-- Setting up Default Directories for Data/Log/Backup
DECLARE @BackupDirectory NVARCHAR(100)
EXEC master..xp_instance_regread @rootkey = 'HKEY_LOCAL_MACHINE',
RECONFIGURE WITH OVERRIDE;

-- ==========================
-- Memory Configuration
-- ==========================
SELECT @MaximumMemory = ([total_physical_memory_kb] / 1024 * @MaxMem / 100)
FROM [master].[sys].[dm_os_sys_memory];

EXEC sp_configure 'min server memory', @MinMem;
RECONFIGURE;
EXEC sp_configure 'max server memory', @MaximumMemory;
RECONFIGURE;

-- ==========================
-- MAXDOP and Cost Threshold
-- ==========================
DECLARE
@logicalCPUs INT,
@hyperthreadingRatio INT,
@physicalCPU INT,
@HTEnabled INT,
@logicalCPUPerNuma INT,
@NoOfNUMA INT;

SELECT
@logicalCPUs = cpu_count,
@hyperthreadingRatio = hyperthread_ratio,
@physicalCPU = cpu_count / hyperthread_ratio,
@HTEnabled = CASE WHEN cpu_count > hyperthread_ratio THEN 1 ELSE 0 END
FROM sys.dm_os_sys_info;

SELECT TOP 1 @logicalCPUPerNuma = COUNT(*)
FROM sys.dm_os_schedulers
WHERE [status] = 'VISIBLE ONLINE'
AND parent_node_id < 64
GROUP BY parent_node_id;

SELECT @NoOfNUMA = COUNT(DISTINCT parent_node_id)
FROM sys.dm_os_schedulers
WHERE [status] = 'VISIBLE ONLINE'
AND parent_node_id < 64;

-- Calculate MAXDOP Recommendation
IF (@logicalCPUs < 8 AND @HTEnabled = 0)
SET @P_MAXDOP = @logicalCPUs;
ELSE IF (@logicalCPUs >= 8 AND @HTEnabled = 0)
SET @P_MAXDOP = 8;
ELSE IF (@logicalCPUs >= 8 AND @HTEnabled = 1 AND @NoOfNUMA = 1)
SET @P_MAXDOP = @logicalCPUPerNuma / @physicalCPU;
ELSE IF (@logicalCPUs >= 8 AND @HTEnabled = 1 AND @NoOfNUMA > 1)
SET @P_MAXDOP = @logicalCPUPerNuma / @physicalCPU;

-- Apply MAXDOP and Cost Threshold
EXEC sp_configure 'max degree of parallelism', @P_MAXDOP;
RECONFIGURE;
EXEC sp_configure 'cost threshold for parallelism', @CostThreshold;
RECONFIGURE;

-- ==========================
-- Default Directories
-- ==========================
DECLARE @BackupDirectory NVARCHAR(500);
EXEC master..xp_instance_regread
@rootkey = 'HKEY_LOCAL_MACHINE',
@key = 'Software\Microsoft\MSSQLServer\MSSQLServer',
@value_name = 'BackupDirectory', @BackupDirectory = @BackupDirectory OUTPUT
;
SET @Backup = coalesce(nullif(@Backup, ''), @BackupDirectory)
SET @DBfile = coalesce(nullif(@DBfile, ''), (SELECT CONVERT(nvarchar(500), SERVERPROPERTY('INSTANCEDEFAULTDATAPATH'))))
SET @Logfile = coalesce(nullif(@Logfile, ''), (SELECT CONVERT(nvarchar(500), SERVERPROPERTY('INSTANCEDEFAULTLOGPATH'))))


EXEC xp_instance_regwrite
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\MSSQLServer',
N'DefaultData',
REG_SZ,
@DBfile

EXEC xp_instance_regwrite
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\MSSQLServer',
N'DefaultLog',
REG_SZ,
@Logfile

EXEC xp_instance_regwrite
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\MSSQLServer',
N'BackupDirectory',
REG_SZ,
@Logfile

-- Add temp files
-- Calculate Number of Required TempDB Files
Declare @cpu int =( SELECT count(cpu_count)
FROM sys.dm_os_sys_info )
Declare @currenttempfine int = (SELECT count(name)
FROM tempdb.sys.database_files)
Declare @requiredtmpfiles int
IF @cpu < 8 Set @requiredtmpfiles = 5
IF @CPU >8 Set @requiredtmpfiles = 9

-- Declare variables for adding new tempDB files
Declare @int int
Declare @MAX_File int

SET @TempfileSize = coalesce(nullif(@TempfileSize, ''), '100MB')

IF @currenttempfine = @requiredtmpfiles Print 'TempDB Files Are OK'
SET @int=1
Set @MAX_File = (@requiredtmpfiles -@currenttempfine)

-- Adding TempDB Files
WHILE @int <= @MAX_File
Begin
Declare @addfiles nvarchar(500)= (select 'ALTER DATABASE [tempdb] ADD FILE (NAME = '+'''tempdb_'+cast(@int as nvarchar(10))+''', FILENAME ='''+@TempfilePath+'tempdb_'+cast(@int as nvarchar(10))+'.ndf'' , SIZE = '+cast(@TempfileSize as nvarchar(10))+')' )
--print @addfiles
EXEC (@addfiles)
SET @int=@int+1
@value_name = 'BackupDirectory',
@BackupDirectory = @BackupDirectory OUTPUT;

SET @Backup = ISNULL(NULLIF(@Backup, ''), @BackupDirectory);
SET @DBfile = ISNULL(NULLIF(@DBfile, ''), CONVERT(NVARCHAR(500), SERVERPROPERTY('INSTANCEDEFAULTDATAPATH')));
SET @Logfile = ISNULL(NULLIF(@Logfile, ''), CONVERT(NVARCHAR(500), SERVERPROPERTY('INSTANCEDEFAULTLOGPATH')));

BEGIN TRY
EXEC xp_instance_regwrite
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\MSSQLServer',
N'DefaultData',
REG_SZ,
@DBfile;

EXEC xp_instance_regwrite
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\MSSQLServer',
N'DefaultLog',
REG_SZ,
@Logfile;

EXEC xp_instance_regwrite
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\MSSQLServer',
N'BackupDirectory',
REG_SZ,
@Backup;
END TRY
BEGIN CATCH
PRINT 'Error setting registry values: ' + ERROR_MESSAGE();
END CATCH

-- ==========================
-- TempDB Files Configuration
-- ==========================
DECLARE
@cpu INT = (SELECT cpu_count FROM sys.dm_os_sys_info),
@currentTempFiles INT = (SELECT COUNT(*) FROM tempdb.sys.database_files),
@requiredTempFiles INT,
@int INT = 1,
@maxFile INT;

SET @requiredTempFiles = CASE WHEN @cpu < 8 THEN 5 ELSE 9 END;

IF @currentTempFiles = @requiredTempFiles
PRINT 'TempDB Files Are OK';
ELSE IF @currentTempFiles > @requiredTempFiles
PRINT CAST(@currentTempFiles - @requiredTempFiles AS NVARCHAR(100)) + ' files need to be removed';
ELSE
BEGIN
SET @maxFile = @requiredTempFiles - @currentTempFiles;
WHILE @int <= @maxFile
BEGIN
DECLARE @addfiles NVARCHAR(1000) =
'ALTER DATABASE [tempdb] ADD FILE (NAME = N''tempdb_' + CAST(@int AS NVARCHAR(10)) +
''', FILENAME = N''' + @TempfilePath + 'tempdb_' + CAST(@int AS NVARCHAR(10)) +
'.ndf'', SIZE = ' + @TempfileSize + ')';
PRINT @addfiles;
BEGIN TRY
EXEC (@addfiles);
END TRY
BEGIN CATCH
PRINT 'Error adding TempDB file: ' + ERROR_MESSAGE();
END CATCH
SET @int = @int + 1;
END
END
IF @currenttempfine > @requiredtmpfiles print Cast(@currenttempfine-@requiredtmpfiles as nvarchar(100))+' File need to be removed'
GO