A Blown transformer, hours of fixing and a day later...

[Ken A]

We have city owned and operated power systems here, and it tends to be
down a few times in the summer for no apparent reason, or when aging
transformers blow, or some drunk hits a pole down the street.
Due to situations just like yours, we had a standby generator put in a
couple years ago for ~ $7500. It's more than paid for itself in early
morning and late night suprises like that. It auto switches our server
room over to generator power if the AC goes out. The UPS systems just
have to to cover for about 2 seconds at most, though you have to get UPS
systems that don't mind slightly 'dirty' AC power to work with it.
Ken
Pacific.Net


Jason Williams wrote:

> Hello everyone.
>
> Well, I had quite a day yesterday to put it mildly. After our building lost
> power for 9 hours (as well as two buildings next to us) I spent a better
> part of the afternoon and evening putting all my systems back together.
> This all happened at 6am in the morning and by the time I got to the
> office, our APC's had run out of juice and all the servers powered down.
> :(  Anyway, 8 hours later, we finally had power and I began the process of
> bringing everything up.
>
> Now, I was checking out our mailgateway server which is running FreeBSD, MS
> 4.29-1, ClamAV and SpamAssassin and it seems to be running correctly, but I
> wanted to ask a few questions here...
>
> The server is accepting mail, scanning it, checking for viruses and spam
> and doing the job. However, I have noticed something this time around that
> I may or may not have noticed before. Bare with me here, im functioning on
> 2 hours sleep. :)
>
> The load average, for the most part, before the power outage was between
> 0.02 and 0.15 with spikes up around 0.33. Nothing extreme, but seemed to be
> the norm for the most part.
>
> What I have noticed today is that the load averages are sort of all over
> the place; from 0.01 to 0.33 with a average of about 0.07. Still low, but
> i'm trying to figure out what, if anything could be wrong. I have also
> noticed that my available free physical ram seems to be slowly trickling
> down. I'm thinking that this is ok though, because once MS restarts itself
> after some time, I see a kick back in available free physical RAM. I'm
> thinking to check memory, vmstat would be the best way to go?
>
> I apologize if I sound a bit of course. I've just had one hell of day
> yesterday. Combine that with little to none sleep and a depravation of
> coffee, and you get me. :)
>
> Anyway, everyone on this list has always been extremely helpful with my
> questions, and I was hoping to get some feedback on my server.
>
>
> I appreciate it everyone.
>
> Jason
>
> -------------------------- MailScanner list ----------------------
> To leave, send    leave mailscanner    to jiscmail at jiscmail.ac.uk
> Before posting, please see the Most Asked Questions at
> http://www.mailscanner.biz/maq/     and the archives at
> http://www.jiscmail.ac.uk/lists/mailscanner.html
>
>

-------------------------- MailScanner list ----------------------
To leave, send    leave mailscanner    to jiscmail at jiscmail.ac.uk
Before posting, please see the Most Asked Questions at
http://www.mailscanner.biz/maq/     and the archives at
http://www.jiscmail.ac.uk/lists/mailscanner.html