[dba-Tech] Always On Notebook

Helmut Kotsch hkotsch at arcor.de
Tue Aug 26 04:24:30 CDT 2008


The net rate in my case is $.18 per kwh. But with all taxes, base fees,
investment charge for green energy it adds up to $.25 per kwh. This is the
average for a yearly usage of 7100 kwh. So it is almost the same as you pay.
Your $15/mo/computer equals to app 270 watts (8 hrs per day at $ .23) which
is not a portable but a desktop PC with all peripherals attached. Its app
the same I have with my setup. In my setup I use a 10-outlet with surge
protection and a master/slave function. When the PC connected as a master is
shut down then all other outlets (slaves, with the screen, printers,
external disks etc) are also automatically shut down. Every evening I put
the PC in hibernation mode. This shuts down the PC and with the master/slave
setup all connected I/O's and has an acceptable start up time. Hibernation
has the advantage above the STANDBY mode that the PC is really shut off and
you don't loose the data in memory in case of a short power drop.

Helmut

-----Ursprungliche Nachricht-----
Von: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com]Im Auftrag von Rocky
Smolin at Beach Access Software
Gesendet: Dienstag, 26. August 2008 01:13
An: 'Discussion of Hardware and Software issues'
Betreff: Re: [dba-Tech] Always On Notebook


I haven't looked at our rates for a while but the last time I looked it was
about $.23 per kwh.  How does that compare with yours?


Rocky Smolin
Beach Access Software
858-259-4334
www.e-z-mrp.com
www.bchacc.com



-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Helmut Kotsch
Sent: Monday, August 25, 2008 7:17 PM
To: Discussion of Hardware and Software issues
Subject: Re: [dba-Tech] Always On Notebook

$15/mo/computer seams to be pretty high. But I don't know your electric
rates, what is it per Kilowatt-Hour (kWhr). The ongoing heat might depending
on the design degrade the plastic parts. It is actually the inrush current
that kills the most electronic parts during power on. The bearings of the
hard drives shouldn't represent a problem it is a more likely problem that
the read/write heads stick to the disk during power off which get damaged
during power on. I have 5 desktop PC's running at my friends company for
over 11 years 24/7/365 without any problems. I bet you, that if they would
have switched them of every day they all would have gone broke for one or
the other reason mostly for electronic failure due to the inrush current.

Helmut

-----Ursprungliche Nachricht-----
Von: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com]Im Auftrag von Rocky Smolin at
Beach Access Software
Gesendet: Montag, 25. August 2008 23:45
An: 'Discussion of Hardware and Software issues'
Betreff: Re: [dba-Tech] Always On Notebook


Perennial question - is most of the wear on your machine due to the heat
that degrades the components over time until one of them fails?   Or is the
most wear due to the surge of power when you turn it on and the stress on
the bearings on the hard drive?

I turn off my computers at night (actually go to standby so they start
faster).  I once figured it saved about $15/mo/computer to turn them off a
night but San Diego has pretty high electric rates.


Rocky Smolin
Beach Access Software
858-259-4334
www.e-z-mrp.com
www.bchacc.com



-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Arthur Fuller
Sent: Monday, August 25, 2008 10:07 AM
To: Discussion of Hardware and Software issues
Subject: [dba-Tech] Always On Notebook

I've grown into the habit of leaving my notebook on 24/7. It's using the
power supply, of course, not the battery. Is there a down side to this? will
the machine wear out more quickly because of this? Even though it's a
notebook, I rarely move it, so I just leave it running.

TIA,
Arthur
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