The catch with that would be to properly identify them to rebuild monthly.    
That would be a really unhappy end-user when the desktop team deploys one of 
these “warm” spares, forgets to tell you about it and the rebuild cycle rolls 
around.

It’s a great idea, but you should have some serious SLAs in place for when that 
happens.  Especially if loss of user data happens.

Mike

From: <[email protected]> on behalf of "Schwan, Phil" 
<[email protected]>
Reply-To: "[email protected]" <[email protected]>
Date: Friday, April 8, 2016 at 5:28 PM
To: "[email protected]" <[email protected]>
Subject: [MDT-OSD] RE: Hot/Warm spare computers?

My recommendation would be to keep a handful of warm spares similar to what 
Andreas described, only I would take it a step further and simply reimage them 
on a monthly basis via a scheduled Task Sequence that runs at the appropriate 
point in your monthly patch release cycle to ensure it’s getting the current 
month’s patches.

The paradigm of imaging a machine and leaving it offline on a shelf for six 
months is one that needs to be broken out of as soon as you can.

-Phil



From: [email protected] [mailto:[email protected]] On 
Behalf Of Miller, Todd
Sent: Friday, April 8, 2016 3:33 PM
To: [email protected]
Subject: [MDT-OSD] Hot/Warm spare computers?

I am looking for some ideas about this scenario.

Our desktop support staff frequently installs computers using OSD/ MDT and then 
sit the computers on a shelf – sometimes for several months-- before putting 
them into service.  This is mostly because they want to be able to quickly drop 
a new computer in place if an existing computer fails.   If a computer in a 
critical area, they want to swap out the computer quickly so that critical use 
is not down for the day.

This cause me stress because those machines are in AD and in SCCM but are not 
active.  So they show up on my reports of machines that are AD joined but 
haven’t checked in in a while (are they lost or stolen or just sitting on a 
shelf?) They haven’t patched in a while (are they on a shelf or is SCCM agent 
broken?)  It is really difficult to tell the difference between a computer that 
is off and a computer that is broken.  At least the Off machines respond to a 
WOL typically.  Machines sitting on a shelf do not….

Id like to have a task sequence that prepares the computer with the OS and 
applications and brings it to current patch level, but then is able to put the 
computer into a “dormant mode.”   Dormant mode might mean deleting the computer 
from AD, preparing the computer to resume the TS on next power on, and then 
powering off.

Then when the computer turns on, the TS should resume. Maybe I’d have a task 
step to rejoin AD and go through some finalization process – maybe run an 
install update task to get caught back up etc and then the machine is ready  to 
go.  This would get the machines ready faster and would not cause me so much 
trouble with idle machines on shelves.

Is there a name for this already?  Good blogs about it?

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