[mythtv-users] Power bill vs SchedulesDirect bill
yan at seiner.com
Tue Sep 18 23:10:30 UTC 2007
Robin Hill wrote:
> You will, of course, need to make sure the power supply is big enough
> for your needs. Remember to check on each power rail, not the total -
> it's no good needing 100W at 5V when it only supplies 60.
One thing to keep in mind:
Hard drives can take a lot more power to spin up than to run.
So if your box is loaded up with 4-6 drives, you probably need a honking
big PS even if your continuous power needs are pretty low.
Some SCSI controllers have a 'staggered spinup' feature where each drive
is brought up by itself, followed by the next drive, and so on. (A
necessity - my dual channel SCSI card can control 30 drives so spinning
up that many drives at once would probably dim the lights in the house.)
With new mobos having 4 - 6 SATA connectors, it would be nice if the
drives could be told to spin up sequentially rather than all at once.
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Yan Seiner (_)\(_) ,>/'_ o__ o__
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'man' is short for 'manual' because it's very short, for a manual.
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