On 16/09/2014 22:35, Valeri Galtsev wrote:
I would use riser 1. If you use riser 2, you will create more
resistance to airflow in area where already is one big heater. I
assume, there are no separators of airflow going from front to end (or
from middle where the set of fans are usually
On 9/16/2014 13:29, m.r...@5-cent.us wrote:
Opinions on which slot to use?
My opinion is that you should read Hot Air Rises and Heat Sinks:
Everything You Know About Cooling Electronics Is Wrong by Tony
Kordyban. It is quite readable, for all that it is a serious EE book.
Thermal
Warren Young wrote:
On 9/16/2014 13:29, m.r...@5-cent.us wrote:
Opinions on which slot to use?
My opinion is that you should read Hot Air Rises and Heat Sinks:
Everything You Know About Cooling Electronics Is Wrong by Tony
Kordyban. It is quite readable, for all that it is a serious EE
On 9/16/2014 1:39 PM, m.r...@5-cent.us wrote:
No, I cannot do the experiment. I've got to get these racked and up and
running, for my users to use. They're not my toys
then call the vendor(s). ask their advice...
now... if this is a rack mount Dell PowerEdge server, and a
John R Pierce wrote:
On 9/16/2014 1:39 PM, m.r...@5-cent.us wrote:
No, I cannot do the experiment. I've got to get these racked and up
and
running, for my users to use. They're not my toys
then call the vendor(s). ask their advice...
now... if this is a rack mount Dell PowerEdge
On 9/16/2014 1:48 PM, m.r...@5-cent.us wrote:
Thanks. I was thinking that, except for the fact that it's a 1U, and so
the gap between the heat sink on the m/b and the bottom of the card is not
exactly large.
those 1U's tend to have a bunch of very high flow rate 80mm fans all the
way across
On 9/16/2014 1:55 PM, John R Pierce wrote:
80mm fans
e, 40mm, I mean. 80mm fans fit in a 2U
--
john r pierce 37N 122W
somewhere on the middle of the left coast
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On 9/16/2014 14:39, m.r...@5-cent.us wrote:
Warren Young wrote:
On 9/16/2014 13:29, m.r...@5-cent.us wrote:
Opinions on which slot to use?
My opinion is that you should read Hot Air Rises and Heat Sinks:
Everything You Know About Cooling Electronics Is Wrong by Tony
Kordyban. It is
Warren Young wrote:
On 9/16/2014 14:39, m.r...@5-cent.us wrote:
Warren Young wrote:
On 9/16/2014 13:29, m.r...@5-cent.us wrote:
Opinions on which slot to use?
My opinion is that you should read Hot Air Rises and Heat Sinks:
Everything You Know About Cooling Electronics Is Wrong by
On Tue, September 16, 2014 2:29 pm, m.r...@5-cent.us wrote:
Hi, folks,
I'm installing a RAID controller card for a large external RAID box in
a Dell server. I've got two riser slots available. Here's the question:
the controller card has some large chips on one side, and if I put it
in
On 31/01/2014 15:52, m.r...@5-cent.us wrote:
With the continuing annoyance from motion, my manager's asked me to go
looking again for a video surveillance appliance: basically, a
motion-detecting DVR and cameras. The big thing, of course, is a) price
(this is a US federal gov't agency, and
On Fri, Jan 31, 2014 at 9:52 AM, m.r...@5-cent.us wrote:
With the continuing annoyance from motion, my manager's asked me to go
looking again for a video surveillance appliance: basically, a
motion-detecting DVR and cameras. The big thing, of course, is a) price
(this is a US federal gov't
Matt Garman wrote:
On Fri, Jan 31, 2014 at 9:52 AM, m.r...@5-cent.us wrote:
With the continuing annoyance from motion, my manager's asked me to go
looking again for a video surveillance appliance: basically, a
motion-detecting DVR and cameras. The big thing, of course, is a) price
(this is a
On Fri, Jan 31, 2014 at 11:00 AM, m.r...@5-cent.us wrote:
I think you misunderstood me. I'm not looking for IP cameras - we'll be
getting cameras that plug into a surveillance DVR appliance. It's the
-DVR's- firmware software will do the recording and picture taking. What
we need is to be
On Fri, Jan 31, 2014 at 11:00 AM, m.r...@5-cent.us wrote:
I think you misunderstood me. I'm not looking for IP cameras - we'll be
getting cameras that plug into a surveillance DVR appliance. It's the
-DVR's- firmware software will do the recording and picture taking. What
we need is to be
Matt Garman wrote:
On Fri, Jan 31, 2014 at 11:00 AM, m.r...@5-cent.us wrote:
I think you misunderstood me. I'm not looking for IP cameras - we'll be
getting cameras that plug into a surveillance DVR appliance. It's the
-DVR's- firmware software will do the recording and picture taking.
What
Les Mikesell wrote:
On Fri, Jan 31, 2014 at 11:00 AM, m.r...@5-cent.us wrote:
I think you misunderstood me. I'm not looking for IP cameras - we'll be
getting cameras that plug into a surveillance DVR appliance. It's the
-DVR's- firmware software will do the recording and picture taking.
On Fri, Jan 31, 2014 at 12:50 PM, m.r...@5-cent.us wrote:
c) The software bugs keep coming: I had trouble last year, when we went to
6.x,
Are you saying it worked right in 5.x? If that's the case, why not
wait until 2017 for something else?
I hear a couple years ago, $10? $19.99?, but my
On Fri, Jan 31, 2014 at 12:45 PM, m.r...@5-cent.us wrote:
Mostly likely it *will*. I think we expect to get a surveillance appliance
- a DVR with firmware, and cameras as part of the package. The ancient USB
cheapie webcams will go.
I see, so you're looking at a complete package that includes
On Fri, Jan 31, 2014 at 12:50 PM, m.r...@5-cent.us wrote:
...but my manage says he'd like to
get out of the business of making video surveillance work, when there's
off-the-shelf stuff out there.
Sounds like a classic problem where you have three requirements...
1. Just works /
Les Mikesell wrote:
On Fri, Jan 31, 2014 at 12:50 PM, m.r...@5-cent.us wrote:
c) The software bugs keep coming: I had trouble last year, when we went
to 6.x,
Are you saying it worked right in 5.x? If that's the case, why not
wait until 2017 for something else?
Because it has to work,
On 1/31/2014 7:52 AM, m.r...@5-cent.us wrote:
With the continuing annoyance from motion, my manager's asked me to go
looking again for a video surveillance appliance: basically, a
motion-detecting DVR and cameras. The big thing, of course, is a) price
(this is a US federal gov't agency, and
John R Pierce wrote:
On 1/31/2014 7:52 AM, m.r...@5-cent.us wrote:
With the continuing annoyance from motion, my manager's asked me to go
looking again for a video surveillance appliance: basically, a
motion-detecting DVR and cameras. The big thing, of course, is a) price
(this is a US
On Fri, Jan 31, 2014 at 1:31 PM, m.r...@5-cent.us wrote:
Are you saying it worked right in 5.x? If that's the case, why not
wait until 2017 for something else?
Because it has to work, perfectly, right now and every day, 24x7x365.25.
Turning it down is not an option.
Did it do that under
On 1/31/2014 12:55, m.r...@5-cent.us wrote:
Hmmm... that $99 each camera gets expensive, fast.
Have you considered that part of the reason you're having hardware
problems is that you're using $19 cameras, and expecting professional
results from them?
$99 for a networked PoE camera is
On 1/31/2014 11:55 AM, m.r...@5-cent.us wrote:
Hmmm... that $99 each camera gets expensive, fast.
did I mention these are HD (1280x720) cams with decent low light
sensitivity (but not IR nightvision)? I didn't find any decent
quality weatherproof PoE cameras with mounting hardware for much
Les Mikesell wrote:
On Fri, Jan 31, 2014 at 1:31 PM, m.r...@5-cent.us wrote:
Are you saying it worked right in 5.x? If that's the case, why not
wait until 2017 for something else?
Because it has to work, perfectly, right now and every day, 24x7x365.25.
Turning it down is not an option.
Warren Young wrote:
On 1/31/2014 12:55, m.r...@5-cent.us wrote:
Hmmm... that $99 each camera gets expensive, fast.
Have you considered that part of the reason you're having hardware
problems is that you're using $19 cameras, and expecting professional
results from them?
$99 for a
John R Pierce wrote:
On 1/31/2014 11:55 AM, m.r...@5-cent.us wrote:
Hmmm... that $99 each camera gets expensive, fast.
did I mention these are HD (1280x720) cams with decent low light
sensitivity (but not IR nightvision)? I didn't find any decent
quality weatherproof PoE cameras with
On Fri, Jan 31, 2014 at 4:04 PM, m.r...@5-cent.us wrote:
Are you saying it worked right in 5.x? If that's the case, why not
wait until 2017 for something else?
Because it has to work, perfectly, right now and every day, 24x7x365.25.
Turning it down is not an option.
Did it do that under
Les Mikesell wrote:
On Fri, Jan 31, 2014 at 4:04 PM, m.r...@5-cent.us wrote:
Are you saying it worked right in 5.x? If that's the case, why not
wait until 2017 for something else?
Because it has to work, perfectly, right now and every day,
24x7x365.25. Turning it down is not an option.
On 1/31/2014 15:06, m.r...@5-cent.us wrote:
That's not going to happen. The budget won't allow that much for this
item.
So find the person who chose that arbitrary number, and explain to them
that in their ignorance, they chose a number that has no connection with
reality. Ask them -- now
Warren Young wrote:
On 1/31/2014 15:06, m.r...@5-cent.us wrote:
That's not going to happen. The budget won't allow that much for this
item.
So find the person who chose that arbitrary number, and explain to them
that in their ignorance, they chose a number that has no connection with
On Fri, Jan 31, 2014 at 4:30 PM, m.r...@5-cent.us wrote:
The price is still right for CentOS 5.x... Why not reinstall and
ignore it for another 3 years? Even if RH backports the breakage to
the older driver you could probably keep using an older module.
We're trying to get rid of all 5.x
On 1/31/2014 2:09 PM, m.r...@5-cent.us wrote:
d) They*do* need to be on the network, so we can back up the pictures and
videos to a server. That means they*must* be up to date on security.
the Aircams are network devices. they use https and rtsp or whatever it
is.the PC/server running
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