Supposedly, the san software only affects disk areas that have been 'imported' into it. Production systems were not imported. Now they are being affected. We had one hiccup during the install, which should not have happened - since that server was not being imported, but did use the switch being updated. The server we had a problem with today is a virtual server - so we are thinking it may be something else, since if the virtual data was lost, windows would not be happy, nevermind sql. Virtual data is stored in one location for all drives.