FW: Mac that won't complete a backup...

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From: Christ, David
To: Siska, Bob
Subject: RE: Mac that won't complete a backup...
Date: Thursday, January 04, 1996 6:41AM

yes the new macs have a powerdown mode.  in that mode the status of the
system (i.e. RAM) is kept alive, but the processor is not really running.
 thus it will not respond to various outside signals.  a signal from the
keyboard will wake it up and the unit will be in the state it was before the
shutdown.  this is different from turning it off where power is cut off from
the RAM and all volatile information is lost.  incidentally, the power saver
feature has the ability to turn the machine on at a specific time so it
could be used to ensure that the unit is on for an after hours backup.
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From: Siska, Bob
To: Christ, David
Subject: FW: Mac that won't complete a backup...
Date: Wednesday, January 03, 1996 4:06PM


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From: owner-adsm-l
To: Multiple recipients of list ADSM-L
Subject: Mac that won't complete a backup...
Date: Wednesday, January 03, 1996 1:23PM

Thanks to all of you who gave me ideas on how to get a particular MAC
user to complete a full backup successfully.  After checking everything out
(TCPIP levels, timeout values etc) we were still failing.  Thought I would
let you know what we found the problem to be:

User had a package on his MAC that is a "powersaver".  It SEEMS like it must
detect that we aren't using the system, and actaully spins down the drive or
saves the memory to disk and spins it down or something... but we were
really
still figuring what files to send next... so MAC would go to sleep and
ADSM would eventually time him out.  When we disabled it, all worked fine.

Other MAC users have a "after dark" function that seems to be just a screen
saver, and that does not cause any problems.

JUST FYI