"Low disk space in Patch Repository" e-mail notification

For the past two days I've been receiving an e-mail alert from Desktop Central (Build 90121) as follows:

Subject: Low Disk Space in your Patch Repository!

Hi,

Your Patch Repository is running out of disk space.

Limit Specified: 10GB

Current Size: 10.28GB

The message includes a link to "Configure Clean Up Policy"

(Points to this URL: http://<server:8020>/ storepatch.do?actiontocall=showpatchstoredetails&ascending=false&tabselect=settings )

but I can't get the URL to work and I'm not seeing a "Patch Store Settings" option anywhere in the DesktopCentral web admin GUI.

Has anyone else had to deal with this issue? I didn't set a Patch Repository size limit of 10GB and my local hard drive has over 400GB available so it's not a true disk limitation. I'm guessing it's an option that used to be available through the GUI in prior versions. Thanks.