A new CA bundle v. 1.29 was released today (6/12/2012). OSG sites using the CA RPM packages must run yum update in order to install the latest package ( |e.g. yum update osg-ca-certs). Without this update, RSV probes will report your site in a "WARNING" status. If your site is currently in this status, you must apply the yum update manually ASAP. RSV probes are configured to switch from a warning status to a failure status in 48 hours. The failure status will cause WLCG sites appear unavailable to WLCG.
You can check the status of your site here:
http://tinyurl.com/c33w84g
If your site does not appear, it is not in warning status.