I recently migrated from a Drobo Second Gen to a DroboPro.
I have 4x1TB Western Digital “Green” drives (EADS).
The DroboPro is connected to a Mac Mini running OS X server 10.6.2.
Running Dashboard 1.6.7 and Firmware 1.1.5.
The DroboPro is always making noise. The drives constantly sound as if they are being accessed, however nothing has suggested that anything is touching them. I have used Activity Monitor and fs_usage and neither raise any flags. Spotlight is not indexing the drive. To be sure, I have added the drive to the privacy list on the server and any clients with the share mounted.
What is odd is that the DroboPro is quietest when it is actually being used. For example, dumping a few files that are 300MB in size onto it the drives go slient. When the copy is finished the activity noise comes back.
Has anyone else experienced this?