The WSUS Database used to install Microsoft Updates on Computers in your network may get quite large over time.
The program located at the following location can be used to create a scheduled task that will cleanup the database and the content files:
http://wsus.codeplex.com/releases/view/17612
Please note that on an Small Business Server 2011, WSUS is on port 8530, so when you run the WSUS_Cleanup_CL.exe command use:
C: CD \SCRIPTS For /f "tokens=2-4 delims=/ " %%a in ('date /t') do (set mydate=%%a-%%b-%%c) For /f "tokens=1-2 delims=/:" %%a in ('time /t') do (set mytime=%%a:%%b) echo Started at: %mydate% %mytime% >> WSUS_Cleanup_log.txt WSUS_Cleanup_CL.exe <servername> f 8530 all For /f "tokens=2-4 delims=/ " %%a in ('date /t') do (set mydate=%%a-%%b-%%c) For /f "tokens=1-2 delims=/:" %%a in ('time /t') do (set mytime=%%a:%%b) echo Ended at: %mydate% %mytime% >> WSUS_Cleanup_log.txt
You may need to manually run the following script initially before running WSUS_Cleanup_CL.exe to to prevent timeout errors from occurring. Take a look at this Microsoft article:
http://technet.microsoft.com/en-us/library/cc708594(WS.10).aspx
To run the script described on the Technet site using sqlcmd use the following:
sqlcmd -i <source directory>\WsusDBMaintenance.sql -o C:\Scripts\SUSDB_Log.log -I -S np:\\.\pipe\MSSQL$MICROSOFT##SSEE\sql\query
I’ve pasted the code from the Microsoft site here, because using copy / paste from the Microsoft site causes the script to fail on single quotes.
/****************************************************************************** This sample T-SQL script performs basic maintenance tasks on SUSDB 1. Identifies indexes that are fragmented and defragments them. For certain tables, a fill-factor is set in order to improve insert performance. Based on MSDN sample at http://msdn2.microsoft.com/en-us/library/ms188917.aspx and tailored for SUSDB requirements 2. Updates potentially out-of-date table statistics. ******************************************************************************/ USE SUSDB; GO SET NOCOUNT ON; -- Rebuild or reorganize indexes based on their fragmentation levels DECLARE @work_to_do TABLE ( objectid int , indexid int , pagedensity float , fragmentation float , numrows int ) DECLARE @objectid int; DECLARE @indexid int; DECLARE @schemaname nvarchar(130); DECLARE @objectname nvarchar(130); DECLARE @indexname nvarchar(130); DECLARE @numrows int DECLARE @density float; DECLARE @fragmentation float; DECLARE @command nvarchar(4000); DECLARE @fillfactorset bit DECLARE @numpages int -- Select indexes that need to be defragmented based on the following -- * Page density is low -- * External fragmentation is high in relation to index size PRINT 'Estimating fragmentation: Begin. ' + convert(nvarchar, getdate(), 121) INSERT @work_to_do SELECT f.object_id , index_id , avg_page_space_used_in_percent , avg_fragmentation_in_percent , record_count FROM sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL , NULL, 'SAMPLED') AS f WHERE (f.avg_page_space_used_in_percent < 85.0 and f.avg_page_space_used_in_percent/100.0 * page_count < page_count - 1) or (f.page_count > 50 and f.avg_fragmentation_in_percent > 15.0) or (f.page_count > 10 and f.avg_fragmentation_in_percent > 80.0) PRINT 'Number of indexes to rebuild: ' + cast(@@ROWCOUNT as nvarchar(20)) PRINT 'Estimating fragmentation: End. ' + convert(nvarchar, getdate(), 121) SELECT @numpages = sum(ps.used_page_count) FROM @work_to_do AS fi INNER JOIN sys.indexes AS i ON fi.objectid = i.object_id and fi.indexid = i.index_id INNER JOIN sys.dm_db_partition_stats AS ps on i.object_id = ps.object_id and i.index_id = ps.index_id -- Declare the cursor for the list of indexes to be processed. DECLARE curIndexes CURSOR FOR SELECT * FROM @work_to_do -- Open the cursor. OPEN curIndexes -- Loop through the indexes WHILE (1=1) BEGIN FETCH NEXT FROM curIndexes INTO @objectid, @indexid, @density, @fragmentation, @numrows; IF @@FETCH_STATUS < 0 BREAK; SELECT @objectname = QUOTENAME(o.name) , @schemaname = QUOTENAME(s.name) FROM sys.objects AS o INNER JOIN sys.schemas as s ON s.schema_id = o.schema_id WHERE o.object_id = @objectid; SELECT @indexname = QUOTENAME(name) , @fillfactorset = CASE fill_factor WHEN 0 THEN 0 ELSE 1 END FROM sys.indexes WHERE object_id = @objectid AND index_id = @indexid; IF ((@density BETWEEN 75.0 AND 85.0) AND @fillfactorset = 1) OR (@fragmentation < 30.0) SET @command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REORGANIZE'; ELSE IF @numrows >= 5000 AND @fillfactorset = 0 SET @command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REBUILD WITH (FILLFACTOR = 90)'; ELSE SET @command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REBUILD'; PRINT convert(nvarchar, getdate(), 121) + N' Executing: ' + @command; EXEC (@command); PRINT convert(nvarchar, getdate(), 121) + N' Done.'; END -- Close and deallocate the cursor. CLOSE curIndexes; DEALLOCATE curIndexes; IF EXISTS (SELECT * FROM @work_to_do) BEGIN PRINT 'Estimated number of pages in fragmented indexes: ' + cast(@numpages as nvarchar(20)) SELECT @numpages = @numpages - sum(ps.used_page_count) FROM @work_to_do AS fi INNER JOIN sys.indexes AS i ON fi.objectid = i.object_id and fi.indexid = i.index_id INNER JOIN sys.dm_db_partition_stats AS ps on i.object_id = ps.object_id and i.index_id = ps.index_id PRINT 'Estimated number of pages freed: ' + cast(@numpages as nvarchar(20)) END GO --Update all statistics PRINT 'Updating all statistics.' + convert(nvarchar, getdate(), 121) EXEC sp_updatestats PRINT 'Done updating statistics.' + convert(nvarchar, getdate(), 121) GO




