'Ken Blake' wrote, in part:
| As I said, a UPS *will* keep you up through a momentary outage, but if it
| lasts more than a minute or two, you should start shutting down so as to
| forestall potential problems with a sudden loss of power to the computer.
|
| What kind of power outages you get and how long they last depends largely
on
| where you live. In big cities, longer duration outages are rarer. But in
| smaller communities they tend to occur more often. I live in a
medium-sized
| city and we get outages of both ypes
_____
Your advice is good.
Being in a large city is no guarantee.
Many power outages are impossible to rectify in a few minutes.
There are swaths of the USA where power outages of more than a couple of
minutes occur more than once a year.
Areas prone to
windstorm
thunderstorm
ice storm
tornado
hurricane.
And then, less often
flood
earthquake.
And there are
transformer faults
transmission system faults
power station operator errors
traffic accidents
brownouts.
Phil Weldon
| Todd wrote:
|
| > | >> Tim Judd wrote:
| >>
| >>> (e-mail address removed) wrote:
| >>>> Thanks for all the suggestions, I will go try a new battery, and
| >>>> switch the jumper tonight. One of my problems is that the town I
| >>>> live in has fairly frequent power outages (about twice a month in
| >>>> the summer) and I don't have an extra UPS to hook up to it. I
| >>>> appriciate all the help.
| >>
| >>> And just buy a UPS. a $50 UPS will give you power for a couple
| >>> years. Replace the battery early enough so that a power outage
| >>> doesn't knock off the server when you need it!
| >>
| >>
| >> It's important to realize that a $50 UPS will do almost nothing to
| >> keep a server running 24/7. An inexpenive UPS like that is designed
| >> to keep you running for only a few minutes--usually half an hour at
| >> most. Its purpose is not to keep you running through a power outage
| >> (unless it's a momentary one), but to give you enough time for an
| >> orderly shutdown, rather than a problem-causing sudden loss of power.
| >>
| >> A UPS which can keep you running for a substantial time withhout
| >> external power costs a *lot* more than $50. These are typically used
| >> in business that need their computers to stay up, and not in
| >> peopl'es homes.
| >>
| >> --
| >> Ken Blake - Microsoft MVP Windows: Shell/User
| >> Please reply to the newsgroup
| >>
| >
| > In my experiance both with my home systems, and at work as a software
| > developer, most of the power outages that caused a system crash were
| > very brief. Just a flicker of the lights and the system crashed.
| > Most of the other outages last from seconds to minutes. Outages long
| > enough to use up the battery in a UPS are really pretty rare, and a
| > UPS will still let you perform an orderly shutdown rather than
| > crashing your system.
|
|
| As I said, a UPS *will* keep you up through a momentary outage, but if it
| lasts more than a minute or two, you should start shutting down so as to
| forestall potential problems with a sudden loss of power to the computer.
|
| What kind of power outages you get and how long they last depends largely
on
| where you live. In big cities, longer duration outages are rarer. But in
| smaller communities they tend to occur more often. I live in a
medium-sized
| city and we get outages of both ypes. Yes, the momentary flicker of lights
| probably occurs most often, but there are also enough longer-duration
| outages to make relying on a $50 UPS to stay up 24/7 completely
impractical.
| As a matter of fact. even if I were in a big city, if I had a business
where
| it was important to be up 24/7, I wouldn't dream of relying on such a
| device.
|
| --
| Ken Blake - Microsoft MVP Windows: Shell/User
| Please reply to the newsgroup
|
|
