Size limitations for WSUS Publishing

Size limitations for WSUS Publishing

Summary

WSUS server has a maximum size limit and sometimes the update package may exceed the size limit if you try something drastic such as publishing the entire MS Office in a custom package through SVM.  You shouldn't do that in general. This article will help you tackle such problems and achieve advanced setup.

Symptoms

Update can't be published to the WSUS server due to the locally published packages size limit.

Cause

The WSUS package size limit is 382 MB by default.

Resolution

Login to your WSUS server and then run the Powershell console as an administrator. Run the below commands one by one to change the locally published package size limit to 1024 MB.

Powershell commands:

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

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

$size = $wsus.GetConfiguration().LocalPublishingMaxCabSize

Write-host "Current Max Size" $size

$config = $wsus.GetConfiguration()

$config.LocalPublishingMaxCabSize = 1024

$config.save()

Additional Information

This will change the size of the locally published package to 1024 MB from 384 MB.
Afterward, larger packages will publish successfully.

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Comments

Do you have an accompanying script that will display the current size limit?  I think that would be helpful before blindly changing this setting.

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Last update:
‎Sep 25, 2019 06:29 PM
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