Disk Spin Down power management settings

HERBIEO wrote:
KNOWN BUGS AND LIMITATIONS Journaling filesystems like ext3, reiserfs or xfs bypass the kernel's delayed write mechanisms. This amounts to lousy spindown times when working off such a partition. There's no workaround for this.

It seems to me that I found even scarier disclaimers in the noflushd docs than this, though I can't put my finger on the text atm. Suffice to say my own troubles with noflushd led me to avoid using spindown altogether.

Back off-topic :oops: regarding fluorescent lamps and PCs left ON 24/7, there's another angle on this that has to be accounted for in a commercial environment, which is not just energy usage but also energy usage. :wink: Namely that watts consumed also directly translates to BTUs produced into the space. The biggest heat producer in a commercial office building is the occupants, and next biggest is the lights! Not sure where computers are, but maybe these days a strong 3rd. Anyway you don't wanna have to cool-down the hot air produced by light fixtures 24/7 if occupancy is only e.g. 12/5. So you turn 'em off. Cooling is expensive, very expensive.

For those offices where the PCs take too long to boot, I'd be inclined to try Hibernation mode to see if that's an acceptable alternative to the users.