If you want the ultimate in low writes, install your OS as a 'live' CD
image. There are plenty of instructions on doing this with a thumb drive
and they apply equally well to an SSD. You can have a separate partition
for your data. I ran my network server like that for quite a while. Some
Most of my failures were on Windows but they didn't seem to be related
to power fluctuations. The Samsung failed on my Linux server. I
reformatted one of the Kingston drives and stuck it in my Linux house
computer. It ran for a couple of weeks before trashing the file system.
I always get the
On 01/03/2012 06:36 PM, Les Newell wrote:
I have had some bad experiences with SSDs. So far in about 18 months I
have killed three in my office computer and one in my network server.
Three were Kingston V series and one was a Samsung. I had the same
issues with all of them. Initially they
On 01/03/2012 10:55 PM, Jon Elson wrote:
Now, on Windows, I have no confidence whatsoever that bad drives are
actually bad
at the hardware level. I have had so many people say oh, that power
surge blew out
my hard drive, when really what happened was the file system got
trashed by a
On 01/03/2012 11:48 PM, gene heskett wrote:
Can some of that perceived resistance be credited to us linux folks
generally being more likely to have a decent UPS that shields our boxes
from a lot of that stuff?
Add that as a whole I think we pay more attention to surge arrestors and
ground
On 01/04/2012 03:47 AM, Les Newell wrote:
Most of my failures were on Windows but they didn't seem to be related
to power fluctuations. The Samsung failed on my Linux server. I
reformatted one of the Kingston drives and stuck it in my Linux house
computer. It ran for a couple of weeks before
2012/1/4 Mark Wendt mark.we...@nrl.navy.mil:
If you plan on running pure SSD's on Ubuntu, this fella put up a very
good write up on extending the life of the SSD (limiting writes), and
getting as much performance from them as you can:
On 01/04/2012 06:13 AM, Viesturs Lācis wrote:
2012/1/4 Mark Wendtmark.we...@nrl.navy.mil:
If you plan on running pure SSD's on Ubuntu, this fella put up a very
good write up on extending the life of the SSD (limiting writes), and
getting as much performance from them as you can:
That is a good article. I do most of that apart from changing the I/O
scheduler. For reliability I leave journaling on.
Les
On 04/01/2012 10:54, Mark Wendt wrote:
If you plan on running pure SSD's on Ubuntu, this fella put up a very
good write up on extending the life of the SSD (limiting
On 01/04/2012 06:33 AM, Les Newell wrote:
That is a good article. I do most of that apart from changing the I/O
scheduler. For reliability I leave journaling on.
Les
Yep, but the journaling will eventually eat your disk up. It's a
trade-off. Longevity of the device vs reliability of
Hi Mark,
The SSD on the server is just handling emails and sending out licenses
purchased through my web site. I used an SSD to save power as the server
runs 24/7. The OS sits on a CF card. Bulk storage is a 1.5TB mechanical
drive that is spun down when not in use. In it's current incarnation
On 01/04/2012 06:38 AM, Les Newell wrote:
Hi Mark,
The SSD on the server is just handling emails and sending out licenses
purchased through my web site. I used an SSD to save power as the
server runs 24/7. The OS sits on a CF card. Bulk storage is a 1.5TB
mechanical drive that is spun
On 1/4/2012 6:41 AM, Mark Wendt wrote:
On 01/04/2012 06:33 AM, Les Newell wrote:
That is a good article. I do most of that apart from changing the I/O
scheduler. For reliability I leave journaling on.
Les
Yep, but the journaling will eventually eat your disk up. It's a
trade-off.
I use an 8 GB SSD as a boot device in my ISDN monitor, an old, slowed
down Pentium PC. The disc has been created once, and now it only gets
written on when a telephone call occurs, maybe a couple of times a day.
So I think, I have a reliable storage without moving parts, fans etc.
at low
gene heskett wrote:
Can some of that perceived resistance be credited to us linux folks
generally being more likely to have a decent UPS that shields our boxes
from a lot of that stuff?
Nope, no UPSs here or at work. our network switches at work are on
UPSs, and maybe
the departmental
Mark Wendt wrote:
Jon,
Linux/Unix used to have the same problems. Until they invented
journaling. That, in my book, has save a ton of disks for me here at
work with cleaning folks accidentally pulling power cords, unexpected
power outages over the weekend that fully drain the UPS's,
On Wednesday, January 04, 2012 02:45:54 PM Jon Elson did opine:
gene heskett wrote:
Can some of that perceived resistance be credited to us linux folks
generally being more likely to have a decent UPS that shields our
boxes from a lot of that stuff?
Nope, no UPSs here or at work. our
gene heskett wrote:
This house, with a full basement, has I believe shifted upwards, floating
if you will, at least 2 in the 22 years I've been here.
Well, I guess we have been real lucky here. The shop is in my basement,
totally uninsulated
except by earth berm. I put exterior foam with
On Wednesday, January 04, 2012 08:28:20 PM Jon Elson did opine:
gene heskett wrote:
This house, with a full basement, has I believe shifted upwards,
floating if you will, at least 2 in the 22 years I've been here.
Well, I guess we have been real lucky here. The shop is in my basement,
2012/1/2 gene heskett ghesk...@wdtv.com:
I've found a barebones box with a D525 board in it, for $120, claims to
have the lpt on the back panel already. Needs a couple sticks of ddr2, a
smallish sata drive and a dvd reader.
http://www.outletpc.com/rj3658.html
$120 kit
$ 29 ram
$ 80 500G
On Tuesday, January 03, 2012 05:06:21 AM Viesturs Lācis did opine:
2012/1/2 gene heskett ghesk...@wdtv.com:
I've found a barebones box with a D525 board in it, for $120, claims
to have the lpt on the back panel already. Needs a couple sticks of
ddr2, a smallish sata drive and a dvd
2012/1/3 gene heskett ghesk...@wdtv.com:
I do not currently have a machine that can boot from either usb or network,
and that includes this $300 Asus mobo with a quad core phenom on it. So
ATM, the only universal boot to install method I have is to maintain a
working internal optical drive
2012/1/3 gene heskett ghesk...@wdtv.com:
On Tuesday, January 03, 2012 06:00:47 AM Viesturs Lācis did opine:
2012/1/3 gene heskett ghesk...@wdtv.com:
I do not currently have a machine that can boot from either usb or
network, and that includes this $300 Asus mobo with a quad core
phenom on
On Tue, 3 Jan 2012, Viesturs Lācis wrote:
2012/1/3 gene heskett ghesk...@wdtv.com:
I do not currently have a machine that can boot from either usb or network,
and that includes this $300 Asus mobo with a quad core phenom on it. So
ATM, the only universal boot to install method I have is to
2012/1/3 kqt4a...@gmail.com:
On Tue, 3 Jan 2012, Viesturs Lācis wrote:
2012/1/3 gene heskett ghesk...@wdtv.com:
I do not currently have a machine that can boot from either usb or
network,
and that includes this $300 Asus mobo with a quad core phenom on it. So
ATM, the only universal
On Tue, 3 Jan 2012, Viesturs Lācis wrote:
2012/1/3 kqt4a...@gmail.com:
On Tue, 3 Jan 2012, Viesturs Lācis wrote:
2012/1/3 gene heskett ghesk...@wdtv.com:
I do not currently have a machine that can boot from either usb or
network,
and that includes this $300 Asus mobo with a quad core
On 3 January 2012 12:49, kqt4a...@gmail.com wrote:
If I were wanting to build a new pc I would agree but I would like to
improve the reliability of a decent machine
I occasionally get rtai errors
Will the Mesa hardware do this
I have only stepper motors
With Mesa/Pico cards you don't need
2012/1/3 andy pugh bodge...@gmail.com:
On 3 January 2012 12:49, kqt4a...@gmail.com wrote:
If I were wanting to build a new pc I would agree but I would like to
improve the reliability of a decent machine
I occasionally get rtai errors
Will the Mesa hardware do this
I have only stepper
If you read the error carefully you will notice that you only get the
error popup once per session even if you are getting millions of
excessive delays...
John
On 1/3/2012 6:59 AM, Viesturs Lācis wrote:
2012/1/3 andy pughbodge...@gmail.com:
On 3 January 2012 12:49,kqt4a...@gmail.com wrote:
Is mesanet.com the only source for the mesa hardware
Richard
--
Write once. Port to many.
Get the SDK and tools to simplify cross-platform app development. Create
new or port existing apps to sell to consumers
On 3 January 2012 14:30, kqt4a...@gmail.com wrote:
Is mesanet.com the only source for the mesa hardware
it appears that www.cnc-ready.at no longer exists.
http://www.duzi.cz/shop_cnc/ still works though.
--
atp
The idea that there is no such thing as objective truth is, quite simply, wrong.
2012/1/3 andy pugh bodge...@gmail.com:
On 3 January 2012 14:30, kqt4a...@gmail.com wrote:
Is mesanet.com the only source for the mesa hardware
it appears that www.cnc-ready.at no longer exists.
http://www.duzi.cz/shop_cnc/ still works though.
Martin Duzi is their dealer in EU. If You are
On Tue, 2012-01-03 at 13:49 +0200, Viesturs Lācis wrote:
... snip
I have no idea, what is dd.
dd is a Linux utility that does a direct copy from one stream to another
(?). I just learned to use it to duplicate a hard drive by copying bit
for bit from the original drive to the new drive. By
On Tuesday, January 03, 2012 11:14:42 AM Viesturs Lācis did opine:
2012/1/3 gene heskett ghesk...@wdtv.com:
On Tuesday, January 03, 2012 06:00:47 AM Viesturs Lؤپcis did opine:
2012/1/3 gene heskett ghesk...@wdtv.com:
I do not currently have a machine that can boot from either usb or
On Tuesday, January 03, 2012 12:00:18 PM kqt4a...@gmail.com did opine:
On Tue, 3 Jan 2012, Viesturs Lؤپcis wrote:
2012/1/3 gene heskett ghesk...@wdtv.com:
I do not currently have a machine that can boot from either usb or
network, and that includes this $300 Asus mobo with a quad core
On Tuesday, January 03, 2012 12:10:31 PM kqt4a...@gmail.com did opine:
[...]
controls and electronics of the machine are in the usual ATX PC case.
What I wanted to say with all this - PC mainboard does not matter that
much, but D525 has a lot of advantages, when compared to other
As usual I am still quite confused
If the Mesa hardware will do the critical work, step generation, why
does it matter so much about the motherboard
Richard
I believe that without the full EPP in effect, the port has some pins that
are write only, and some that read only. IIRC the
On Tuesday, January 03, 2012 01:44:42 PM gene heskett did opine:
http://www.directron.com/extremevalue.html
I just bought one of these. Genuine Intel board, but Not fanless but 2G of
ram a 250Gb HD 300 watt supply, $246 shipped. It's in Houston, he
wanted some of my snow, said he was 80
Kent A. Reed wrote:
On 1/2/2012 10:35 PM, Jon Elson wrote:
gene heskett wrote:
Is anyone running emc on this? How is the latency?
I've tested the Intel D525MW motherboard, and put it in the database.
The servo thread jitter was 15595, the base thread was 11921.
That is
I have had some bad experiences with SSDs. So far in about 18 months I
have killed three in my office computer and one in my network server.
Three were Kingston V series and one was a Samsung. I had the same
issues with all of them. Initially they worked great but after some
months they
On 1/3/2012 6:36 PM, Les Newell wrote:
I have had some bad experiences with SSDs. So far in about 18 months I
have killed three in my office computer and one in my network server.
Three were Kingston V series and one was a Samsung. I had the same
issues with all of them. Initially they worked
: [Emc-users] hal taking machine down
On 1/3/2012 6:36 PM, Les Newell wrote:
I have had some bad experiences with SSDs. So far in about 18 months I
have killed three in my office computer and one in my network server.
Three were Kingston V series and one was a Samsung. I had the same
issues
Kirk Wallace wrote:
On Tue, 2012-01-03 at 19:26 -0500, Kent A. Reed wrote:
... snip
The jury still seems to be out on the question of SSD reliability,
partly because there are so few data points compared to rotating disks.
... snip
I just replaced a friend's Samsung 60GB SSD. It
On Tuesday, January 03, 2012 10:58:17 PM Kirk Wallace did opine:
On Tue, 2012-01-03 at 19:26 -0500, Kent A. Reed wrote:
... snip
The jury still seems to be out on the question of SSD reliability,
partly because there are so few data points compared to rotating
disks.
... snip
I
On Tuesday, January 03, 2012 11:33:10 PM Jon Elson did opine:
Kirk Wallace wrote:
On Tue, 2012-01-03 at 19:26 -0500, Kent A. Reed wrote:
... snip
The jury still seems to be out on the question of SSD reliability,
partly because there are so few data points compared to rotating
On 1/2/2012 12:13 AM, Kent A. Reed wrote:
As for debugging your hal file, that's the problem I was working on in
the fall with my attempts to graph the hal network. The feedback I got
here suggested my approach wasn't lighting anyone's fire, but my wife's
health has taken a big nose dive (I
On 1/2/2012 12:13 AM, Kent A. Reed wrote:
On 1/1/2012 8:41 PM, gene heskett wrote:
...
Thanks guys sending wishes for Happy Prosperous New Year to all.
Further thought: How do you folks arrive at those logic diagrams shown at
several locations in the Integrators Manual I just
On Mon, 2012-01-02 at 02:11 -0500, gene heskett wrote:
... snip
As for debugging your hal file, that's the problem I was working on in
the fall with my attempts to graph the hal network. The feedback I got
here suggested my approach wasn't lighting anyone's fire,
I hope it didn't come
On Monday, January 02, 2012 12:44:51 PM Kirk Wallace did opine:
On Mon, 2012-01-02 at 02:11 -0500, gene heskett wrote:
... snip
As for debugging your hal file, that's the problem I was working on
in the fall with my attempts to graph the hal network. The feedback
I got here suggested
On Monday, January 02, 2012 01:47:39 PM gene heskett did opine:
[...]
With regard to a bad hal file killing the machine, I am now beginning to
lean toward a flaky psu, its not liking 50F ambient temps in the shop,
and has crashed with grand and goriously colored confetti on the screen
On Monday, January 02, 2012 02:07:53 PM Kenneth Lerman did opine:
On 1/2/2012 1:16 PM, gene heskett wrote:
lots of stuff snipped
Maybe I'll even buy a whole new box. If I could find one of those
compact models with a usable parport no built in video. Is anyone
actually selling that
On 2 January 2012 18:46, Kenneth Lerman kenneth.ler...@se-ltd.com wrote:
That will be the third such machine I have. It does have built-in video,
but you don't have to use it.
However, there is no reason not to use the built-in video with that
card, it works fine.
--
atp
The idea that there
On Mon, 2 Jan 2012, gene heskett wrote:
Date: Mon, 2 Jan 2012 14:06:25 -0500
From: gene heskett ghesk...@wdtv.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] hal taking machine down
On Monday
On 2 January 2012 19:12, gene heskett ghesk...@wdtv.com wrote:
MBD-I-D525MWV 1 D525MWV Mini-ITX Motherboard 85.00
Does that include the lpt breakout kit?
No need, the D525 has the LPT on the back panel, it's the purple one here:
@lists.sourceforge.net
Subject: Re: [Emc-users] hal taking machine down
On Monday, January 02, 2012 01:47:39 PM gene heskett did opine:
[...]
With regard to a bad hal file killing the machine, I am now beginning
to lean toward a flaky psu, its not liking 50F ambient temps in the
shop
On Monday, January 02, 2012 02:31:38 PM andy pugh did opine:
On 2 January 2012 18:46, Kenneth Lerman kenneth.ler...@se-ltd.com
wrote:
That will be the third such machine I have. It does have built-in
video, but you don't have to use it.
However, there is no reason not to use the built-in
On 1/2/2012 2:06 PM, gene heskett wrote:
On Monday, January 02, 2012 01:47:39 PM gene heskett did opine:
[...]
With regard to a bad hal file killing the machine, I am now beginning to
lean toward a flaky psu, its not liking 50F ambient temps in the shop,
and has crashed with grand and
On Mon, 2012-01-02 at 14:12 -0500, gene heskett wrote:
... snip
Disks are hens teeth ATM, although I hear production is ramping back up
after the tsunami now.
... snip
I would consider nixing the optical drive and maybe the hard drive and
use a USB thumb drive for installation and or normal
On Monday, January 02, 2012 02:34:16 PM andy pugh did opine:
On 2 January 2012 19:12, gene heskett ghesk...@wdtv.com wrote:
MBD-I-D525MWV 1 D525MWV Mini-ITX Motherboard85.00
Does that include the lpt breakout kit?
No need, the D525 has the LPT on the back panel, it's
gene heskett wrote:
Maybe I'll even buy a whole new box. If I could find one of those compact
models with a usable parport no built in video.
Is anyone actually selling that intel board that has been discussed here in
a ready to go package? I'd drop the card for one of those in a
On 1/2/2012 2:23 PM, andy pugh wrote:
On 2 January 2012 19:12, gene heskettghesk...@wdtv.com wrote:
MBD-I-D525MWV 1 D525MWV Mini-ITX Motherboard85.00
Does that include the lpt breakout kit?
No need, the D525 has the LPT on the back panel, it's the purple one here:
On 2 January 2012 19:32, gene heskett ghesk...@wdtv.com wrote:
On Monday, January 02, 2012 02:31:38 PM andy pugh did opine:
However, there is no reason not to use the built-in video with that
card, it works fine.
And this is the foxcon board?
No, this is the Intel BOXD525MW (but I think that
On 2 January 2012 19:36, gene heskett ghesk...@wdtv.com wrote:
http://www.suntekstore.co.uk/goods.php?id=10010116utm_source=gbuk
It may be, but how long does it work with ext3? I would rather have
rotating storage I can count on for a year or so.
I have been using an 8GB one of those to
On Monday, January 02, 2012 02:50:10 PM Kent A. Reed did opine:
On 1/2/2012 2:06 PM, gene heskett wrote:
On Monday, January 02, 2012 01:47:39 PM gene heskett did opine:
[...]
With regard to a bad hal file killing the machine, I am now beginning
to lean toward a flaky psu, its not
One small data point:
Be carefull with MB choices, the Intel D525 MB is known to have good latency
not sure about the Foxconn.
I found that a Foxconn board that we used to sell had much worse latency than
the Intel DG41AN. No idea how it compares to the D525.
Rogge
On 1/2/2012 2:58 PM, andy pugh wrote:
On 2 January 2012 19:32, gene heskettghesk...@wdtv.com wrote:
On Monday, January 02, 2012 02:31:38 PM andy pugh did opine:
However, there is no reason not to use the built-in video with that
card, it works fine.
And this is the
On 1/2/2012 2:12 PM, gene heskett wrote:
Stuff that I deleted
Subtotal 230.25
Shipping Cost (UPSGR)13.22
Total$243.47
Does that include the lpt breakout kit? And is it time I bought a portable
dvd writer that plugs into a usb port to do installs such with? Will it
On Monday, January 02, 2012 04:53:35 PM Dave did opine:
On 1/2/2012 2:58 PM, andy pugh wrote:
On 2 January 2012 19:32, gene heskettghesk...@wdtv.com wrote:
On Monday, January 02, 2012 02:31:38 PM andy pugh did opine:
However, there is no reason not to use the built-in video with that
On Monday, January 02, 2012 06:26:30 PM Kenneth Lerman did opine:
On 1/2/2012 2:12 PM, gene heskett wrote:
Stuff that I deleted
Subtotal 230.25
Shipping Cost (UPSGR) 13.22
Total $243.47
Does that include the lpt breakout kit? And is it time I bought a
portable
gene heskett wrote:
Is anyone running emc on this? How is the latency?
I've tested the Intel D525MW motherboard, and put it in the database.
The servo thread jitter was 15595, the base thread was 11921.
That is fine for any system with a hardware interface (servo or
stepper) but may be a
gene heskett wrote:
On Monday, January 02, 2012 02:31:38 PM andy pugh did opine:
On 2 January 2012 18:46, Kenneth Lerman kenneth.ler...@se-ltd.com
wrote:
That will be the third such machine I have. It does have built-in
video, but you don't have to use it.
However,
andy pugh wrote:
No, this is the Intel BOXD525MW (but I think that BOX might just
mean it is in a box)
Yes, it means there is an individual cardboard box with holographic
anti-counterfeit
label, meant for sale to the end-user, instead of packed in cases of a
dozen or so.
Jon
gene heskett wrote:
How about this one? $219
http://www.directron.com/extremevalue.html
only needs an optical drive for installs.
I am tempted to get 2, one for the lathe.
Yup, looks mostly OK to me. It has a plastic window on the side, and a fan.
You may need the fan with the magnetic
On 1/2/2012 10:35 PM, Jon Elson wrote:
gene heskett wrote:
Is anyone running emc on this? How is the latency?
I've tested the Intel D525MW motherboard, and put it in the database.
The servo thread jitter was 15595, the base thread was 11921.
That is fine for any system with a hardware
On Monday, January 02, 2012 11:40:59 PM Jon Elson did opine:
gene heskett wrote:
Is anyone running emc on this? How is the latency?
I've tested the Intel D525MW motherboard, and put it in the database.
The servo thread jitter was 15595, the base thread was 11921.
That's pretty good for
On Monday, January 02, 2012 11:49:36 PM Jon Elson did opine:
gene heskett wrote:
On Monday, January 02, 2012 02:31:38 PM andy pugh did opine:
On 2 January 2012 18:46, Kenneth Lerman kenneth.ler...@se-ltd.com
wrote:
That will be the third such machine I have. It does have built-in
On Monday, January 02, 2012 11:52:14 PM Jon Elson did opine:
gene heskett wrote:
How about this one? $219
http://www.directron.com/extremevalue.html
only needs an optical drive for installs.
I am tempted to get 2, one for the lathe.
Yup, looks mostly OK to me. It has a
On Sunday, January 01, 2012 08:37:16 PM gene heskett did opine:
Greets everybody;
I had gone back to an older $config because it had all the A axis stuff
it it, and of course had to do a bit of fine tuning in the .ini file.
But when I fired off a proggy that used the M3-4-5 spindle
On 1/1/2012 8:41 PM, gene heskett wrote:
...
Thanks guys sending wishes for Happy Prosperous New Year to all.
Further thought: How do you folks arrive at those logic diagrams shown at
several locations in the Integrators Manual I just printed fresh last
Thursday?
It seems to me that
On Monday, January 02, 2012 01:57:46 AM Kent A. Reed did opine:
On 1/1/2012 8:41 PM, gene heskett wrote:
...
Thanks guys sending wishes for Happy Prosperous New Year to all.
Further thought: How do you folks arrive at those logic diagrams
shown at several locations in the Integrators
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