General discussion

Locked

Server is Down in the morning

By mdixon ·
Aside from a posible UPS battery being bad,
what could cause my 4.11 server to shut down
after hours. It has to be happening around
4 am or so because the back-up operation
is completing.

I have come in and found the server was off.
Boots normally, no errors msgs displayed.

I'd really like to get this solved because the VP is using it (the server "failure")
as grounds for leveraging in a Win2k server instead of upgrading from NetWare 4.11 to
5.1.

Thanks.

Max

This conversation is currently closed to new comments.

11 total posts (Page 1 of 2)   01 | 02   Next
| Thread display: Collapse - | Expand +

All Comments

Collapse -

Server is Down in the morning

by eBob In reply to Server is Down in the mor ...

A Story:

Several servers and a couple of bits of network gear would go off the Openview screen at one site, every night at about 22h30 (there time). 30 minutes later the network gear would return. The servers were PING-able, but no services were running. When the on-site staff came in, these servers were all sitting at the blue screen, and had to be rebooted manually.

After a couple of months of this (to cut a long story short), it was discovered that the cleaners arrived at 22h30. Needing someplace to plug in their gear, they unplugged a nearby power bar. About 30 minutes later, they dutifully replaced the power bar and left.

You can guess what was plugged into the power bar.

Collapse -

Server is Down in the morning

by mdixon In reply to Server is Down in the mor ...

I already talked to the cleaning people.
They do not plug into that power bar, not the outlet where the power bar plugs
in.
Thank you for your assistance.

Collapse -

Server is Down in the morning

by kelly_aitch In reply to Server is Down in the mor ...

Check for abend logs. Use the console logging utility to capture console messages. Who's around at about that time of day - the situation described in the other post happens far more often than it should.

What's the backup software (The way Arcserve acts, it causing something like this wouldn't surprise me, especially if you use database agents and that kind of stuff). What else runs on this server?

Good luck...

Collapse -

Server is Down in the morning

by mdixon In reply to Server is Down in the mor ...

We do use ArcServe. I had already gone in and checked the settings.
No agents are being used.
Thank you for your assistance.

Collapse -

Server is Down in the morning

by Kevin Anderson In reply to Server is Down in the mor ...

If you're already pointing at the UPS, I would suggest that you take it out of the loop. Your server isn't staying up anyway, so you have nothing to lose for a day or two.

When you say OFF, do you mean down, or the power is switched off? Is there a bios setting that might be shutting it down? Powersave or something useless like that? Your boss is an idiot, obviously (Win2K), so did he maybe authorize purchasing a desktop instead of a server?

I had a server that dismounted all it's volumes overnite (bad SCSI Card), but it still had power going to it...

Try plugging a PC (or a clock radio with no battery backup, etc) into the same powerbar as the server. If it's off as well (or flashing 12:00 on the clock radio), then you know it's a power issue. If it's on, but the server is off, then the problem is with the server.

Kev.

Collapse -

Server is Down in the morning

by mdixon In reply to Server is Down in the mor ...

It turned out to be the UPS.
Not only was the UPS failing but also
I have found out that the power company is cutting back on power at night and building a new substation. I took the UPS home and tried it there. I would
get up in the morning and my home lan
would be down. I also tried the clock radio idea.
Thank you for your assistance.

Collapse -

Server is Down in the morning

by soliboy In reply to Server is Down in the mor ...

What the others here have posted is right, circumstances depending. I am thinking in a different line though. I will assume the model of an APC Matrix UPS or some such, with Powerchute software running on the server. Find out if and how you can set the line-in sensitivity on the UPS to low. I suspect your electricity provider may fluctuate power or be unable to provide exactly the necessary line-in voltage ( in Ireland it should be 230va and my ups is right now showing 221va) so a sudden dip inline power will trigger the UPS to batteries (even though the power is alive) and shut down the server after a couple of minutes.Have an electrician to wire the UPS into the nearest distribution board. And if your boss succeeds with the W2K plan, let him perform the migration. Wait till it is failing miserably and then laugh a cold bitter laugh...

Collapse -

Server is Down in the morning

by mdixon In reply to Server is Down in the mor ...

It turned out to be the UPS.
Not only was the UPS failing but also
I have found out that the power company is cutting back on power at night and building a new substation. I took the UPS home and tried it there. I would
get up in the morning and my home lan
would be down.
Thank you for your assistance.

Collapse -

Server is Down in the morning

by rpritt In reply to Server is Down in the mor ...

Make sure pwrchute isn't set to down the server automatically every night. Also, make sure that some jokester hasn't used cron.nlm to down the server every night.
Reset the pwrchute software to only down the server if it has less than 10 minutesof reserve time left, and to reboot when 50% of the capacity is rechared. Also, make your console log MUCH bigger, and change your rconsole password. If the console log is big enough, it will tell you the last message before your server downed.

Collapse -

Server is Down in the morning

by mdixon In reply to Server is Down in the mor ...

It turned out to be the UPS.
Not only was the UPS failing but also
I have found out that the power company is cutting back on power at night and building a new substation. I took the UPS home and tried it there. I would
get up in the morning and my home lan
would be down.
Thank you for your assistance.

Back to Networks Forum
11 total posts (Page 1 of 2)   01 | 02   Next

Related Discussions

Related Forums