I am having the same problem with the following drive:
ATA device, with non-removable media
Model Number: WDC WD10SPZX-00Z10T0
Serial Number: WD-WX21E370JZH3
Firmware Revision: 01.01A01
Transport: Serial, SATA 1.0a, SATA II Extensions, SATA Rev
2.5, SATA Rev 2.6, SATA Rev 3.0Is it possible that some drives simply don't support such automatic spindown, and expect the OS to handle that? Kind regards, Ralf

