I realize, this thread is old, but the info is still useful for many.
PUIS is used in modern systems too, especially in Enterprise and RAID setups, and is a part of future ATA/ATAPI Command Set
- see section 4.20 and others. You can use Hitachi Feature Tool
to activate PUIS in various HDD brands (i.e. block non-system disks spinup at wakeup from Standby until you try to write or read files from these disks), if your HDD firmware & hardware supports this feature. It should be supported on most drive models as part fo ATA/ATAPI Standard, but some Samsung green models may have issues with it as reported on the web, as they use alternative similar purpose feature sets. There are also some other open source and HDD maker developed tools capable of activating PUIS. This feature requires BIOS support.
Windows also use some Registry settings to allow for more time to access (system) drives at wakeup, which is useful for booting from slower and USB external drives. But it doesn't have AFAIK any settings to block non-system HDD spinup at wakeup, this is the feature of HDD firmware. Such Windows feature would be useful however, especially on multidrive systems to save energy and avoid BSODs due to delays in accessing some of HDDs at wakeup because of PSU voltage drop.