WSUS tips and tricks

Resources:

PS script for declining superseded updates that have been approved:

[reflection.assembly]::LoadWithPartialName("Microsoft.UpdateServices.Administration") | Out-Null

# Run From LocalHost

$updateServer = [Microsoft.UpdateServices.Administration.AdminProxy]::getUpdateServer()

$updateServer.GetUpdates() | ForEach-Object {

if (($_.IsSuperseded -eq $true) -and ($_.IsApproved -eq $true)) {

$_.Decline()

$title = $_.Title

Write-Host "Declining update: $title"

}

$cleanupManager = $updateServer.GetCleanupManager()

$scope = New-Object "Microsoft.UpdateServices.Administration.CleanupScope"

$scope.CleanupUnneededContentFiles = $true

$result = $cleanupManager.PerformCleanup($scope)

$space = $result.DiskSpaceFreed

Write-Host "Freed $space bytes."

PS script to remove declined updates:

[reflection.assembly]::LoadWithPartialName("Microsoft.UpdateServices.Administration")

$wsus = [Microsoft.UpdateServices.Administration.AdminProxy]::GetUpdateServer();

$declined=$wsus.GetUpdates() | Where {$_.IsDeclined -eq $true}

$declined| ForEach-Object {$wsus.DeleteUpdate($_.Id.UpdateId.ToString()); Write-Host $_.Title removed }

Reindex DB when using WID

First need to install the PS SQLServer module. Run the following from admin PS:

Install-Module -Name "SqlServer"

PS script to reindex DB when using WID :

Import-Module -Name "SqlServer"

Invoke-Sqlcmd -ConnectionString 'server=\\.\pipe\MICROSOFT##WID\tsql\query;database=SUSDB;trusted_connection=true;Encrypt=False;TrustServerCertificate=True' -InputFile "C:\<filepath>\WSUS_reindex.sql"

WSUS_reindex.sql :

<source: Reindex the Windows Server Update Services (WSUS) database - Configuration Manager | Microsoft Learn >

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