[There's a reason that Yoda is the unofficial mascot of SBS.  Size indeed matters not.] Remote patching - THE OFFICIAL BLOG OF THE SBS DIVA
Sat, Oct 6 2012 23:55 bradley

Remote patching

If you are installing the update rollups for SBS 2008 or 2011 remember that they will shut down the TSgateway during the patching process so if you patch over RWA or TSgateway connection, you'll want to ensure you have another means of remote access.

In my case because my server runs in HyperV I actually log onto the parent and patch/monitor from there.

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