Try resetting the unit to factory defaults if this has not been done since updating to 1.06. Are you using the iTunes server or UPnP AV media server function with any device currently?
I have tried your suggestion,
but it did not work.
Here is what I've done so far:
took out the old drive (RHS)
inserted new drive
reinstalled 1.06 FW
reset to factory default
reformated the new drive
FTP, UPnP, iTunes, LLTD all are disabled
No files on the new drive (not even FFP, transmission etc.....)
Synced time to pool.ntp.org
configured power management to 10 minutes
the disk still spins well after 10 minutes