Then please open a support case.
The problem I have had with fw 1.0.5 is that my Drobo FS will appear in some computers and not others. In addition, if I mount my Time Machine using Drobo Dashboard (the latest) then the back up fails. If I manually mount the time machine share then it’s fine. Every now and then access via AFP will slow to a crawl while smb access remains fast. Restarting the Drobo FS seems to fix that and it seems to be fine now.
Are EARS drives from WD really compatible with the Drobo’s? I am wondering if that is causing some of the instability.