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Update dba-config.sql #7

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222 changes: 86 additions & 136 deletions DBA/dba-config.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -60,21 +60,22 @@ 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)


DECLARE @MinMem INT = 0;
DECLARE @MaxMem INT = 90;
DECLARE @P_MAXDOP INT;
DECLARE @CostThreshold INT = 50;
DECLARE @DBFile NVARCHAR(500);
DECLARE @LogFile NVARCHAR(500);
DECLARE @Backup NVARCHAR(500);
DECLARE @TempFilePath NVARCHAR(500); -- It's mandatory
DECLARE @TempFileSize NVARCHAR(100) = '100MB';

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

-- Other Settings as per the Best Practice
EXEC sp_configure 'index create memory', 0
-- Other settings as per best practices
EXEC sp_configure 'index create memory', 0;
RECONFIGURE;
EXEC sp_configure 'min memory per query', 1024;
RECONFIGURE;
Expand All @@ -87,142 +88,91 @@ RECONFIGURE;
EXEC sp_configure 'fill factor', 0;
RECONFIGURE;
EXEC sp_configure 'backup compression default', 1;
RECONFIGURE WITH OVERRIDE ;
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;
DECLARE @MaximumMemory INT;
SELECT @MaximumMemory = (total_physical_memory_kb / 1024 * @MaxMem / 100)
FROM [master].[sys].[dm_os_sys_memory];

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

-- 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
;
DECLARE @HyperThreadingRatio BIT;
DECLARE @LogicalCPUs INT;
DECLARE @HTEnabled INT;
DECLARE @PhysicalCPU INT;
DECLARE @NoOfNUMA INT;
DECLARE @LogicalCPUPerNuma 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
OPTION (RECOMPILE);

SELECT @LogicalCPUPerNuma = COUNT(parent_node_id)
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
WHERE [status] = 'VISIBLE ONLINE' AND parent_node_id < 64;

SET @P_MAXDOP = COALESCE(NULLIF(@P_MAXDOP, ''),
CASE
WHEN @LogicalCPUs < 8 AND @HTEnabled = 0 THEN @LogicalCPUs
WHEN @LogicalCPUs >= 8 AND @HTEnabled = 0 THEN 8
WHEN @LogicalCPUs >= 8 AND @HTEnabled = 1 AND @NoOfNUMA = 1 THEN @LogicalCPUPerNuma / @PhysicalCPU
WHEN @LogicalCPUs >= 8 AND @HTEnabled = 1 AND @NoOfNUMA > 1 THEN @LogicalCPUPerNuma / @PhysicalCPU
ELSE ''
END);

EXEC sp_configure 'max degree of parallelism', @P_MAXDOP;
EXEC sp_configure 'cost threshold for parallelism', @CostThreshold;
RECONFIGURE;

-- Setting up Default Directories for Data/Log/Backup
DECLARE @BackupDirectory NVARCHAR(100)
DECLARE @BackupDirectory NVARCHAR(100);
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
@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, @Backup;

-- 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
DECLARE @CPU INT = (SELECT cpu_count FROM sys.dm_os_sys_info);
DECLARE @CurrentTempFileCount INT = (SELECT COUNT(name) FROM tempdb.sys.database_files);
DECLARE @RequiredTempFiles INT;

SET @TempfileSize = coalesce(nullif(@TempfileSize, ''), '100MB')
IF @CPU < 8 SET @RequiredTempFiles = 5;
ELSE IF @CPU >= 8 SET @RequiredTempFiles = 9;

IF @currenttempfine = @requiredtmpfiles Print 'TempDB Files Are OK'
SET @int=1
Set @MAX_File = (@requiredtmpfiles -@currenttempfine)
-- Declare variables for adding new tempDB files
DECLARE @Int INT = 1;
DECLARE @MaxFile INT = @RequiredTempFiles - @CurrentTempFileCount;

-- 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
END
IF @currenttempfine > @requiredtmpfiles print Cast(@currenttempfine-@requiredtmpfiles as nvarchar(100))+' File need to be removed'
WHILE @Int <= @MaxFile
BEGIN
DECLARE @AddFiles NVARCHAR(500) = 'ALTER DATABASE [tempdb] ADD FILE (NAME = ''tempdb_' + CAST(@Int AS NVARCHAR(10)) + ''', FILENAME = ''' + @TempFilePath + 'tempdb_' + CAST(@Int AS NVARCHAR(10)) + '.ndf'', SIZE = ' + @TempFileSize + ')';
EXEC (@AddFiles);
SET @Int = @Int + 1;
END;

IF @CurrentTempFileCount > @RequiredTempFiles
PRINT CAST(@CurrentTempFileCount - @RequiredTempFiles AS NVARCHAR(100)) + ' file(s) need to be removed';
GO