preis@bc-cis.UUCP (03/30/87)
To those people who took the time out of their busy schedule to call or write,
Thanks.
PROBLEM:
An unreliable AC unit ( 1 of 2 protecting a vax and support hardware ).
PLAN:
To monitor the temperature of the room or the status of the
two ac units, and take immediate action when necessary.
SOLUTION:
my solution: to have temperature sensors act as a(n) (rs232 device) terminal
and have a monitor program signal users to take action.
--- prob: If there are no 'human' users logged in
( ie. 3 day weekend or 4am ) no action will be taken.
expensive to purchase a monitor that makes (a) pre-programmed phone
solution: call(s) if certain conditions exist, ie. high temp,
smoke/fire, etc. ( Can be purchased from environmental
control companies, see your phone book ).
--- prob: cost: $1,500 ( most basic model ). The cost is
too high, also what if no one is at home at the pre
programmed phone numbers?
best solution: Two thermostats, one directly connected to campus police,
the other connected to the power supply.
The first, triggered at 80 F, will cause an indicator
light at campus police to illuminate on a panel with
COMPLETE instructions including names, and phone numbers.
The second, triggered at 85 - 90 F, will shut off the
power supply to the computer hardware. Rash, but effective.
( cost ~ $200 )
Again, to all those people who called me or wrote to me, thanks for
your interest.
--- ALSO ---
Comming soon to a uucp node near you:
In about three weeks I will be posting a program that displays
vmstat graphically ( do a man vmstat, and try vmstat +1 ). It has
some graphics, but mostly it's cursered numbers.
Everybody at our site who used my ( unpostable ) program really
liked it.
Thanks again,
David William Preisler
Assistant System Administrator
phone: (718) 996-7375 (h)
780-5905 (w) Brooklyn College
Computer Science Department
electronic mail: c/o rm. 0300 NE
preis@bc-cis.UUCP Bedford Avenue and Ave H
calbc289@cunyvm.BITNET Brooklyn, New York 11210