Re: Server restarts at 3.00 am
- From: IanB <IanB@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 6 Nov 2007 07:20:00 -0800
This may be a complete red herring, but ...
We had a recurring shutdown as the NTbackup went over to verify. This
started suddenly and left no record of events proir to shutdown
Someone (at sometime) had installed Java on the server to support a program
which tests adsl speed. There was an update abouth 3 weeks ago which I
allowed (don't know why!). A trawl through memory indicated that the shut
down started around that time.
Removing Java cured the problem.
IanB
"PaulWilkie" wrote:
Thanks Brian - it restarts dirty like the power was off, but it is only off.
for a matter of seconds from the entries in the security logs. It could
indeed be a UPS problem, and we are working to eliminate that (first step to
pull the plug on the UPS and make sure it maintains power) but since the
shutdowns are at the same time give or take a few seconds, it seems more
likely to be software. There are no tasks starting anywhere near the
relevant time, and I'm afraid I lack the courage to change the time on an
operational server - I feel I could be unravelling the effects of that for
months!
It is a dual NIC server, so I could disable the internal network card
overnight - that might be worth trying. Unfortunately as is always the way,
the users are in the middle of a major audit and working all hours so access
is a problem (and of course reliability is paramount)
"Brian Cryer" wrote:
"PaulWilkie" <PaulWilkie@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:B2C9010A-FB9C-4189-9C2D-952611C0C7C9@xxxxxxxxxxxxxxxx
We have a server which restarts itself at 3.00 am every morning - it is on
a
UPS and there is no sign of external influence, UPS logs are clear and the
building is locked at night. Event logs are completely clear at the
relevant
times, except the security log which shows the normal pattern with a 3
minute
hiatus for the restart. There is nothing in Task Scheduler for this time,
but given the time I suspect an errant MS update. Anyone know where these
are queued? Or any other other bright ideas?
Once you've ruled out the UPS (see other posts), are you able to change the
time to say 2.50am and then watch what happens? I know its not quite the
same thing, but it might help.
When it comes back up does it ask for a reason for the restart? If it does
then it implies the restart was unexpected. If it doesn't then it implies
that Windows was shut down/restarted cleanly in which case I would hope
(could be wrong about this) that something would be logged to the system
event log indicating which process initiated the shutdown.
One other idea, does it restart if its disconnected from the network? or put
another way there may be nothing in the task scheduler but could there be
something on another pc that is causing it? (Although again I would expect
something in the event log.)
According to the event log are there any tasks that start shortly before
3am? For example exchange maintenance or backups? If so then does running
that same task during the day cause the same problem?
Otherwise out of ideas.
Please post back when you do find the cause.
--
Brian Cryer
www.cryer.co.uk/brian
- References:
- Re: Server restarts at 3.00 am
- From: Brian Cryer
- Re: Server restarts at 3.00 am
- From: PaulWilkie
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