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Old 08-25-2011, 02:28 AM
Robert Arkiletian
 
Default UPS issues with PFC PSU

On Wed, Aug 24, 2011 at 4:26 PM, Rudi Ahlers <Rudi@softdux.com> wrote:
>> Because the original post made no mention of "CentOS" at all. *At least
>> that's my guess and that's also the first impression I had about the
>> post.

Sorry I should have initially stated it was for CentOS6.

>>
>
> well, where else would he connect the UPS to? His fish tank?
> Surely if someone has a PC, and is subscribed to a Linux mailing linux
> and asks for advice on a hardware device then it would be related to
> compatibility as well.
>

Thanks for the support but I really don't want my query to turn into a
debate about what's off topic. It's just that I have only ever used
APC and apcupsd. I've never used CyberPower and wondered if other
CentOS people were using it with success/reliability. If that's off
topic then I've learned something.


--
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada
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Old 08-25-2011, 03:37 AM
"John R. Dennison"
 
Default UPS issues with PFC PSU

On Thu, Aug 25, 2011 at 01:26:39AM +0200, Rudi Ahlers wrote:
>
> well, where else would he connect the UPS to? His fish tank?

Based on past nonsensical threads in this list that is indeed a
possibility, yes.

> Surely if someone has a PC, and is subscribed to a Linux mailing linux
> and asks for advice on a hardware device then it would be related to
> compatibility as well.

Sorry, I don't make such assumptions; quite frankly neither should you
or anyone else.

> Someone running Windows probably wouldn't even know if there are other
> brands available than what he can get from his local PC shop. And just
> about every single piece of hardware, which can be purchased from any
> shop will always work on Windows. So why would he bother asking if it
> would work?

Does it make you feel better to insult the many, many millions of
people that run windows?

> EVEN if that's the case (staff leaving and people getting irretated),
> it's still no reason to be rude with someone without knowing all the
> facts to his question first.

I suppose it's too much to ask that people make a connection to CentOS
in their initial post so all these types of arguments can be put to
rest? It not only makes the post valid but it also supplies the readers
of the list with the additional information they need to actually help
the original poster. Note: I am simply using the OP of this thread as
an example, I am not necessarily pointing fingers.

> Many people would rather trust the advice given on a list like this
> than the advice given by a sales rep. Just cause you're a genius and
> don't need any help with anything ever, doesn't mean the next guy is
> as clever as you.

Lately the advice on this list is quite often of questionable worth.




John
--
Yesterday was the first anniversary of the discovery of Neptune -- in Neptune
years. 11 July 2011 marks the first full orbit of the planet Neptune since its
discovery on the night of September 23-24, 1846.

-- Charlie Jane Anders, io9.com, based on an article by Tammy Plotner,
universetoday.com, 11 July 2011
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Old 08-25-2011, 10:43 AM
Always Learning
 
Default UPS issues with PFC PSU

On Wed, 2011-08-24 at 22:37 -0500, John R. Dennison wrote:

> On Thu, Aug 25, 2011 at 01:26:39AM +0200, Rudi Ahlers wrote:
> >
> > well, where else would he connect the UPS to? His fish tank?

> Based on past nonsensical threads in this list that is indeed a
> possibility, yes.

Come on John, you know HDDs do not work in water-filled fish tanks.


--
With best regards,

Paul.
England,
EU.


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Old 08-25-2011, 10:46 AM
Always Learning
 
Default UPS issues with PFC PSU

On Wed, 2011-08-24 at 22:37 -0500, John R. Dennison wrote:

> > Someone running Windows probably wouldn't even know if there are other
> > brands available than what he can get from his local PC shop. And just
> > about every single piece of hardware, which can be purchased from any
> > shop will always work on Windows. So why would he bother asking if it
> > would work?

> Does it make you feel better to insult the many, many millions of
> people that run windows?

I think many Linux users feel genuinely sorry for those who know only
Windoze especially with their viruses, Trojans, Blue-Screen-of-Death and
other worrying experiences including 'my computer is very, very slow -
what can I do?'




--
With best regards,

Paul.
England,
EU.


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Old 08-25-2011, 10:49 AM
"John R. Dennison"
 
Default UPS issues with PFC PSU

On Thu, Aug 25, 2011 at 11:43:28AM +0100, Always Learning wrote:
>
> Come on John, you know HDDs do not work in water-filled fish tanks.

And this type of completely off-topic crap is exactly what I was
referring to.

If people would engage that thing that $deity gave them at birth called
a "brain" before running their mouth, or in this case their fingers,
this list wouldn't be nearly as polluted as it's become over the past
few months.

Additional lists aren't required; common sense, however, is.




John
--
The best argument against democracy is a five minute conversation
with the average voter.

-- Winston Churchill
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Old 08-25-2011, 10:51 AM
William Warren
 
Default UPS issues with PFC PSU

On 8/24/2011 10:28 PM, Robert Arkiletian wrote:
> On Wed, Aug 24, 2011 at 4:26 PM, Rudi Ahlers<Rudi@softdux.com> wrote:
>>> Because the original post made no mention of "CentOS" at all. At least
>>> that's my guess and that's also the first impression I had about the
>>> post.
> Sorry I should have initially stated it was for CentOS6.
>
>> well, where else would he connect the UPS to? His fish tank?
>> Surely if someone has a PC, and is subscribed to a Linux mailing linux
>> and asks for advice on a hardware device then it would be related to
>> compatibility as well.
>>
> Thanks for the support but I really don't want my query to turn into a
> debate about what's off topic. It's just that I have only ever used
> APC and apcupsd. I've never used CyberPower and wondered if other
> CentOS people were using it with success/reliability. If that's off
> topic then I've learned something.
>
>
cypberpower does provide a linux utility to communicate with their ups
systems. I have one that is on three server...
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Old 08-25-2011, 02:25 PM
Blake Hudson
 
Default UPS issues with PFC PSU

Robert Arkiletian wrote the following on 8/24/2011 1:17 AM:
> Just noticed that our new server has a newer 80+ efficiency 865W PSU
> with PFC. So apparenty our existing 1500VA (865W) APC Back-UPS is not
> safe to use anymore. We apparently need a pure sine wave UPS.
>
> http://nam-en.apc.com/app/answers/detail/a_id/8883
>
> I found an affordable 1500VA UPS by CyberPower, model CP1500PFCLCD,
> which has a pure sine wave output.
> Wondering if anyone has experience with CyberPower UPS's. Are they any
> good? Any problems with pwrstatd ?
>

We have used several CyberPower sine-wave, AVR UPS units in our server
room - AVR1500, I believe. The cyber power monitoring app that comes
with the UPS (also available on the site) works fine in Redhat Linux,
though we don't use it, and I have not tested it in a few years (last
version was probably RH5).

However, we have not found them to be 100% reliable. We use them with a
mix of equipment from different vendors. While the units work fine when
tested, in production they sometimes do not switch fast/early enough and
we have experienced several equipment reboots due to this. We have
tightened the thresholds in the CyberPower control software so that the
UPS will kick in more frequently, but the adjustments are pretty
limited. Because of this, we have moved the units to non-critical
equipment or equipment that is protected by a redundant power source
through an APC UPS. We've since stopped buying the units for server use,
but may consider them for desktop use.

--Blake






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Old 08-25-2011, 03:14 PM
Bowie Bailey
 
Default UPS issues with PFC PSU

On 8/25/2011 10:25 AM, Blake Hudson wrote:
> We have used several CyberPower sine-wave, AVR UPS units in our server
> room - AVR1500, I believe. The cyber power monitoring app that comes
> with the UPS (also available on the site) works fine in Redhat Linux,
> though we don't use it, and I have not tested it in a few years (last
> version was probably RH5). However, we have not found them to be 100%
> reliable. We use them with a mix of equipment from different vendors.
> While the units work fine when tested, in production they sometimes do
> not switch fast/early enough and we have experienced several equipment
> reboots due to this. We have tightened the thresholds in the
> CyberPower control software so that the UPS will kick in more
> frequently, but the adjustments are pretty limited. Because of this,
> we have moved the units to non-critical equipment or equipment that is
> protected by a redundant power source through an APC UPS. We've since
> stopped buying the units for server use, but may consider them for
> desktop use. --Blake

I haven't used CyberPower UPS's in the office (currently all variations
of the APC Smart-UPS), however, I do have three basic CyberPower's at
home. One for my computer and the networking equipment, one for my
wife's computer, and one for the DVR and other electronics. I have been
using them for a few years now and have yet to have a problem.

--
Bowie
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Old 08-25-2011, 07:34 PM
Robert Nichols
 
Default UPS issues with PFC PSU

On 08/25/2011 05:51 AM, William Warren wrote:
> On 8/24/2011 10:28 PM, Robert Arkiletian wrote:
>> Thanks for the support but I really don't want my query to turn into a
>> debate about what's off topic. It's just that I have only ever used
>> APC and apcupsd. I've never used CyberPower and wondered if other
>> CentOS people were using it with success/reliability. If that's off
>> topic then I've learned something.
>>
>>
> cypberpower does provide a linux utility to communicate with their ups
> systems. I have one that is on three server...

nut (Network UPS Tools) also works fine with Cyberpower UPSs via USB.
Use the generic usbhid-ups driver. The nut package is available from
the EPEL repo (nut-2.2.2-1.el5, nut-2.4.3-4.el6).

--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.

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