I just installed 2 FW 800 daisy-chained WD My Book Studio LX 2T drives on my iMac running OS X (Snow Leopard), updating both the firmware and SmartWare application per the latest releases (as of 1/4/2011). All good and running in a normal active situation, but when the disks go into sleep mode, they unmount from the OS and disappear from the desktop. I can use the SmartWare application running in the background to manually remount the drives, but this is very sub-optimal as I use the external drive as my iTunes and iPhoto server, both of which are disabled as soon as the drive unmounts.
I have used the SmartWare app to reset the Sleep timer to “Never”, but haven’t been able to test effectiveness yet. Ultimately, I’d like the drives to be able to sleep in low-usage situations and get spun-up by the OS when they are needed.
I have read through the knowledge base for other suggestions and can see others with this issue, but not any resolutions. I reconfirmed my setup and have the drives both independently hooked to the power supply, which one post recommended.
Any ideas / suggestions to get this resolved?