F15 Samba shares: SWAT, smb.conf, system-config or KDE file share properties ? Bug ?
by linux guy
I'm building a NAS server using Samba. Its a mixed OS network.
I just spent several hours chasing some really funny bugs.
I started out using SWAT in Firefox. I'd make a change in SWAT and commit
it. Then I'd view the file. So far so good. Usually the change didn't run
like it should have. Ie a share directory didn't get changed, etc.
Then I tried system-config-samba.
Then I tried using KDE via Dolphin, folder properties, sharing, etc.
Then I tried manually editing smb.conf
After each attempt I restarted smb and nmb.
After a while I realized that the server was running with the settings from
several changes ago and that the only way I could be sure that my changes
were being used was to reboot after every change.
Is there a bug somewhere in here or am I missing something ?
Is it ok to mix and match these tools as the need arises or should I be
using one over the other ?
Thanks
12 years, 7 months
Fedora14: Very very slow NFS write performance
by Terry Barnaby
Anyone know why the NFS write performance with Fedora14 may be slow (without
async) ?
I have Gigabit networking which is all working fine and the systems in question
have been running Fedora in various forms for many years.
Writing a single large file across NFS is fine, about: 32MBytes/sec without
async and 51 MBytes/sec with async. However if I untar a 30MByte tar file
that has 2466 files in it into an NFS mounted directory with async it takes
about 8 seconds but without async it takes over 9 minutes !!
Is this expected ?
If not any ideas what is wrong ?
I am seeing the following:
data.bin binary file 100MB
jpgraph-3.5.0b1.tar tar archive 29MB 2466 files
# Test1, defaults: nfs version 4,
Server /etc/exports: "/data *.kingnet(rw)"
Client /etc/fstab: "king.kingnet:/data /data nfs defaults 0 0"
dd if=/tmp/data.bin of=/data/tmp/data.bin bs=102400
32.9 MB/s
dd if=/data/tmp/data.bin of=/tmp/data1.bin bs=102400
66.5 MB/s
time tar -xf /tmp/jpgraph-3.5.0b1.tar
real 9m35.235s
# Test2, nfs version 4, async
Server /etc/exports: "/data *.kingnet(rw,async)"
Client /etc/fstab: "king.kingnet:/data /data nfs defaults 0 0"
dd if=/tmp/data.bin of=/data/tmp/data.bin bs=102400
51.3 MB/s
dd if=/data/tmp/data.bin of=/tmp/data1.bin bs=102400
126 MB/s
time tar -xf /tmp/jpgraph-3.5.0b1.tar
real 0m7.938s
# Test3, nfs version 3, async
Server /etc/exports: "/data *.kingnet(rw,async)"
Client /etc/fstab: "king.kingnet:/data /data nfs defaults,nfsvers=3 0 0"
dd if=/tmp/data.bin of=/data/tmp/data.bin bs=102400
52.6 MB/s
dd if=/data/tmp/data.bin of=/tmp/data1.bin bs=102400
146 MB/s
time tar -xf /tmp/jpgraph-3.5.0b1.tar
real 0m4.920s
Terry
12 years, 7 months
RE: "fans seems to work fine" & "It's not enough that they spin"...
by J.Witvliet@mindef.nl
-----Original Message-----
From: users-bounces(a)lists.fedoraproject.org [mailto:users-bounces@lists.fedoraproject.org] On Behalf Of Joe Zeff
Sent: Monday, September 26, 2011 8:31 PM
To: Community support for Fedora users
Subject: Re: "fans seems to work fine" & "It's not enough that they spin"...
On 09/26/2011 03:28 AM, Tim wrote:
> But it's not just*a* fan, you have PSU fans, CPU fans, and sometimes a
> case fan. A box with one large fan ducted to all the other heatsinks
> makes things a lot quieter, and more reliable.
I don't know about anybody else on this list, but that suggestion makes
the words "single point of failure" come to mind.
-----Original Message-----
I think (..) he meant, a larger fan produces less noise than a smaller one, and one larger fan produces more air-flow than several smaller ones.
But heat should be tackled multiple ways:
A) produce less (cpu, gpu, disk)
b) internal disposure (alu-case instead of iron, ducts for air)
c) environmental conditions (cooler room)
hw
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12 years, 7 months
Re: "fans seems to work fine" & "It's not enough that they spin".. Try building your own water cooling from junk...
by Linda McLeod
Re: "fans seems to work fine" & "It's not enough that they spin"...
"I've not really wanted to
get into the expense of trying a liquid cooled system. But the idea of
a silent system, one using heatpipes and massive heatsinks appeals to
me, because I miss having a silent workroom."
I think the personal computer is a bit of a bad design (in may ways),
but just regarding the cooling aspect of it."
_______________________
"Liquid cooled"..?
Umm?.. thin 1/4" soft copper pipe wrapped around hot things like how a
still is made, but not touching anything..
Run a tiny 12 volt pump with plumbing antifreeze in it.. Cool the pump,
and a coil of copper near the pump with a small silent case fan.. Be
sure to filter the air that touches the fan..
Or use the business parts of a small air conditioner or dehumidifier..
Extreme caution with cooling devices.. Freon is safe in a peaceful
environment, but when freon meets flame, it turns the freon into an
extremely deadly poison, is why car and house fires are so dangerous..
What if someone built a tower in a cylinder shape..? Properly placed
fans might set up a turbo effect for better cooling.. Plus, round
towers could be decorated such to be hidden/disguised, or part of a
room's décor..
Take a looksee at the bathroom and kitchen fan covers in your home..
Are they totally plugged with dust..?
Have you looked at the fans inside your tower yet..?
--
http://www.fastmail.fm - A fast, anti-spam email service.
12 years, 7 months
Re: "fans seems to work fine" & "It's not enough that they spin"...
by Linda McLeod
Re: strange behaviour of my desktop
"yes, fans seems to work fine..."
"I'll add the obvious: It's not enough that they spin, there has to be
airflow through the heatsink that the fans blow across, and throughout
the cabinet. Also, heatsinks need to make good physical contact with
what they're attached too."
_____________
Worded twice as good as I could have.. "perfect!"..
Adding to it: There's a LOT more to the "bad-fans syndrome"..
If you sweep the rooms while the computer is running, some of that
airborne-dust will be sucked into the tower.. Dust in brass
fan-bushings causes heat build-up, which bakes the bearing surface, and
bakes the dust into abrasive carbon, which is essentially "ultra-fine
sandpaper", which wrecks bearings and bushings, which is why
corporations spend $millions on clean-rooms for their computers...
If the tower is set near a hot air vent, the fans will pull-in heat, and
heat what they're supposed to be cooling...
You know the CPU fan is failing, and/or plugged with dust, when the OS
crashes every hour or so...
You really know the CPU's heatsink is seriously dust plugged, when you
smell hot dust and overheated electronic components, emitting from the
tower...
If the tower is set near a cold air vent, the fans will pull-in airborne
dust whenever the computer is running...
Open your towers, and check to see that the fans are silent, and the
CPU's heatsink is absolutely dustfree.. If the fan is plugged-up with
dust, your computer will eventually bake its hd into trash...
Every old tower that one acquires, the first things to do are: Don't
bring it straight into the home.. Bleach wash the case, then open it
outside, upwind of it for-sure.. Those things are dust and bug
collectors.. Bedbugs is nearly a global epidemic now.. Mites is
already a global epidemic... Use air pressure, plus soft brush, to
clean the tower inside.. Try to be upwind of the dust, that stuff is
seriously bio-toxic.. Bleach what you can... Don't spray it with bug
sprays.. Those sprays melt plastic, and damage eyes...
Maybe someone could invent, build, and sell "tower dust cover boxes" to
be set on top of towers, so all the air the tower gets is already
filtered dustfree... Add a plastic duct-pipe for the tower's exhaust..
Not good to restrict cooling fan exhaust... Maybe RedHat could patent
this filter-box, and make some good money on it.. a gift for allowing us
to use this wonderful Fedora gem for free...
Maybe there should be a link to send RedHat our ideas for them to make
money with, in return for the great love they are sharing with humanity
and you and me, in the form of "Fedora"...
--
http://www.fastmail.fm - Does exactly what it says on the tin
12 years, 7 months
fsck exits with error status, even though no errors are found
by JD
kernel-2.6.35.14-96.fc14.i686
During boot, when the time comes for fsck'ing
the file systems, whatever script is doing that,
is exiting with an error status, even though no
errors are displayed, and I am prompted to either
enter the root password, or type Contrl-D to continue.
Cntrl-D simply reboots. Entering the root password,
and running fsck manually to check all filesystems in fstab,
yields that all is well, no errors are found, and the exit
status is 0.
Would appreciate some info on identifying the script that
does the fsck during boot.
Thanx.
12 years, 7 months
Unable to boot from live CD or install from DVD
by Vijayan
Hello,
I have been using Fedora (KDE spin) for quite some time.
There was absolutely no problem till Fedora 14. But now when I try
to install Fedora 15, the live CD does not boot. I have tried Gnome
Live CD and also the DVD. I even tried the pre-upgrade procedure.
All give the same result. The CD/DVD begins to boot, some text
messages appear and finally the CD/DVD activity stops with the
line [ 1.319497] [<c040377e>] kernel_thread_helper+0*6*0*10.
My machine is Lenovo C 200 (Intel Atom D410 dual core
processor). I am not a computer expert. But I am moderately
familiar with Linux because I have been using it for more than 12
years. How do I overcome this problem?
- Vijayan
12 years, 7 months
gnome3 - the funny side
by Ian Malone
On the basis that you need to laugh every so often.
http://live.gnome.org/GnomeShell/AppletsTransition:
Desktop design copouts
Then there are applets that are about making it marginally faster to
do things that should be obvious and fast to do without an applet to
do them. If these are useful, we've misdesigned.
Connect to a Server...
Disk Mounter
Lock Screen
Log Out...
Run Application...
Search for Files...
Shutdown..
--
imalone
12 years, 7 months
Evince prining problem -
by Bob Goodwin
Suddenly I can't print the Sunday crossword puzzles! Firefox
prints the pdf files via evince and something has gone wrong
there. I have two Brother laser printers, an HL-5124 and an
HL-2170W, printing to either one from Evince causes the "Paper"
light to come on although they have plenty of paper in them. The
printing process runs right up to the point where the paper
should be picked up and stops with the error light flashing,
same on both printers, I didn't try the HP ink jet but there's
little doubt it would have been the same.
The work around is to tell Firefox to print pdf's through xpdf
which I also have. But I would like to fix the evince problem. I
am not certain if this began as a result of yum updates done
9/22 per the log, but I see a couple of CUPS updates listed? I
didn't see any printer configuration items in the evince menus ...
Any thoughts, suggestions welcome.
Bob
12 years, 7 months