SLES vs SLED

[Andrew Joakimsen]

Besides SLES costing 10x more than SLES, what is the difference
between the two? I currently run some servers on openSUSE and the lack
of long-term software updates is annoying. So coming from openSUSE
should SLED run a server just fine? SLED will have Apache, MySQL, etc
and all the relevant modules for it in Yast just as in openSUSE, no?

[Marco Palominos]

SLED do not have Apache and others servers. You can install from source.

http://laffers.net/howtos/howto-install-apache

regards
Marco

Asunto: [opensuse] SLES vs SLED
Fecha: martes, 5 agosto, 2008, 7:37 pm
Besides SLES costing 10x more than SLES, what is the
difference
between the two? I currently run some servers on openSUSE
and the lack
of long-term software updates is annoying. So coming from
openSUSE
should SLED run a server just fine? SLED will have Apache,
MySQL, etc
and all the relevant modules for it in Yast just as in
openSUSE, no?
--

____________________________________________________________________________________
Yahoo! MTV Blog & Rock >¡Cuéntanos tu historia, inspira una canción y gánate un viaje a los Premios MTV! Participa aquí http://mtvla.yahoo.com/

[Michael Folsom]

Besides Apache you will find SLED doesn't contain servers for things
like subversion or LDAP. Also, unless my test results are very wrong
there is some differences in the kernel - notably the scheduler and
the ability to mange lots of cores. I put SLED10 x86-64 of a 4
processor quad core opteron system, i.e. it has 16 cores, and it was a
strange experience indeed. Putting SLED10 x86-64 on it helped restore
some sanity.

Mike

Post by Marco Palominos
SLED do not have Apache and others servers. You can install from source.
http://laffers.net/howtos/howto-install-apache
regards
Marco

Asunto: [opensuse] SLES vs SLED
Fecha: martes, 5 agosto, 2008, 7:37 pm
Besides SLES costing 10x more than SLES, what is the
difference
between the two? I currently run some servers on openSUSE
and the lack
of long-term software updates is annoying. So coming from
openSUSE
should SLED run a server just fine? SLED will have Apache,
MySQL, etc
and all the relevant modules for it in Yast just as in
openSUSE, no?
--

____________________________________________________________________________________
Yahoo! MTV Blog & Rock >¡Cuéntanos tu historia, inspira una canción y gánate un viaje a los Premios MTV! Participa aquí http://mtvla.yahoo.com/
--

[Anders Johansson]

Post by Michael Folsom
Also, unless my test results are very wrong
there is some differences in the kernel - notably the scheduler and
the ability to mange lots of cores.

As md5sum will tell you, the SLES and SLED kernels are binary identical

Anders

[John Andersen]

Post by Michael Folsom
I put SLED10 x86-64 of a 4
processor quad core opteron system, i.e. it has 16 cores, and it was a
strange experience indeed. Putting SLED10 x86-64 on it helped restore
some sanity.

Something's wrong with those two sentences.

Did you mean to say "Putting SLES10 on helped"?

[Shawn Protsman]

Post by Marco Palominos
SLED do not have Apache and others servers. You can install from source.
http://laffers.net/howtos/howto-install-apache
regards
Marco

You can also install RPMs from the SLES DVD onto your SLED box. I've
had to do this numerous times.

--Shawn

[Michael Folsom]

Wow - now that's interesting -

Let me explain why I made that statement - I have a Uniwide 3546 with
4 quad core 2.3 GH opterons, 32 gb of ram, and a 3ware 9550sx sata
card with 6 500GB sata drives in a level 5 raid.

When I built it with SLES10 x86-64 SP1 (patched to the latest &
greatest) I saw lots of i/o issues - the system would simply hang for
literally 20 to 30 seconds at a time however when I rebuilt the same
box with SLED10 x86-64 SP1 (again the latest & greatest patches) those
"hangups" disappeared (note this occurred during the course of a day
or two so the kernel release was the same). Since nothing else
changed save the type of OS I assumed that there was some diff in some
part of the kernel (the scheduler, i/o mgmt, etc-) that caused the
problem.

Now I am really perplexed!

Michael

Post by Anders Johansson

Post by Michael Folsom
Also, unless my test results are very wrong
there is some differences in the kernel - notably the scheduler and
the ability to mange lots of cores.

As md5sum will tell you, the SLES and SLED kernels are binary identical
Anders
--

[John Andersen]

Post by Michael Folsom

Post by Anders Johansson

Post by Michael Folsom
Also, unless my test results are very wrong
there is some differences in the kernel - notably the scheduler and
the ability to mange lots of cores.

As md5sum will tell you, the SLES and SLED kernels are binary identical
Anders
--

--
Wow - now that's interesting -
Let me explain why I made that statement - I have a Uniwide 3546 with
4 quad core 2.3 GH opterons, 32 gb of ram, and a 3ware 9550sx sata
card with 6 500GB sata drives in a level 5 raid.
When I built it with SLES10 x86-64 SP1 (patched to the latest &
greatest) I saw lots of i/o issues - the system would simply hang for
literally 20 to 30 seconds at a time however when I rebuilt the same
box with SLED10 x86-64 SP1 (again the latest & greatest patches) those
"hangups" disappeared (note this occurred during the course of a day
or two so the kernel release was the same). Since nothing else
changed save the type of OS I assumed that there was some diff in some
part of the kernel (the scheduler, i/o mgmt, etc-) that caused the
problem.
Now I am really perplexed!
Michael

I fixed your top posting so this thread might remain intelligible.
Never top post
to a mailing list.

Hangs of this nature plagued multi-core machines for quite a while.
Some users would get them, others not, but it seemed most prevalent
in X86_64. I don't see this sort of thing much anymore.

The fact that the kernels are identical between SLES and SLED is not
really that important, because there are many many settings that can
affect operation.

Many of these hangs could be attributed to processor internal clocks, and
clock-drift between the two cores, and timer sources. Slowly the kernels
improved and most of these problems went away.

Some of these could be prevented with the "nohpet" boot parameter, which
forced the use of alternate timer sources. I still run with nohpet, even tho
I have not verified it is even honored or necessary since the last new kernel.

Google will reveal thousands of hits on these 30 second freezes, under
various names, and all sorts of "try this" solutions are recommended.
It was a real mess for a long time and you still occasionally find people
posting about it here, so its not totally fixed.

[Michael Folsom]

Sorry for the confusion, yes - you are correct - I first ran SLED on
it then changed it to SLES and things improved.

Michael

Post by John Andersen

Post by Michael Folsom
I put SLED10 x86-64 of a 4
processor quad core opteron system, i.e. it has 16 cores, and it was a
strange experience indeed. Putting SLED10 x86-64 on it helped restore
some sanity.

Something's wrong with those two sentences.
Did you mean to say "Putting SLES10 on helped"?
--
----------JSA---------
There are 10 kinds of people in this world, those that can read binary
and those that can't.
--

[Andreas Jaeger]

Post by Andrew Joakimsen
Besides SLES costing 10x more than SLES, what is the difference
between the two? I currently run some servers on openSUSE and the lack

Check the package lists, SLES contains server packages, SLED does not.
SLES is the Enterprise Server, SLED the Enterprise Desktop.

Post by Andrew Joakimsen
of long-term software updates is annoying. So coming from openSUSE
should SLED run a server just fine? SLED will have Apache, MySQL, etc

The SLED technology should run a server just fine.

Post by Andrew Joakimsen
and all the relevant modules for it in Yast just as in openSUSE, no?

But you will only get Apache etc on SLES not on SLES - SLED has in
general only the clients,

Andreas