Re: TX-Errs on hipersocket interface.

2013-07-25 Thread Alan Altmark
On Thursday, 07/25/2013 at 02:58 EDT, Carsten Otte wrote: > TX errors on a Hipersocket are business as usual. When the receiver fails > to pick up packets at the same rate that the transmitter transmits, the > queues will run full over time. TCP uses packet loss as a measure to > tune the TCP wind

Re: TX-Errs on hipersocket interface.

2013-07-25 Thread Carsten Otte
Alan wrote: >Carsten, this is information that really needs to be in the Device Driver >book, as it differs from the traditional interpretation of TX/RX counters. Ah, you're right - that would be accouned as dropped, not TX error. Forget about my reply then, time to look at other causes for that TX

Re: Query for Destination z article -- computer museums

2013-07-25 Thread Tom Huegel
It has been years since I was there but the Chicago Museum of Science and Industry had great exhibit of computers. I remember they had an IBM RAMAC 305 (I think it was working) along with many other historic devices. It has been quite a while since I was there, has anyone seen this exhibit lately?

Re: Performance on SLES11 SP2 guest after migration from SLES10 SP4

2013-07-25 Thread Ron Foster
Berry, Thanks Ron Foster Baldor Electric Company 5711 R S Boreham Jr Street Fort Smith, AR 72901 Phone:479-648-5865 Fax:479-646-5440 Email: ron.fos...@baldor.abb.com IM Address:rfos...@baldor.com www.baldor.com From: Linux on 390 Port [LINUX-390

Re: TX-Errs on hipersocket interface.

2013-07-25 Thread Ron Foster
Carsten, Do you know where I would start looking for causes of the transmit errors on Hipersockets? The error is occurring on SLES11 SP2 systems. We are not having it on our SLES10 SP4 systems. Do I need to open a problem with the SuSe folks? Thanks, Ron Foster Baldor Electric Company 57

Re: Query for Destination z article -- computer museums

2013-07-25 Thread David Boyes
> It has been years since I was there but the Chicago Museum of Science and > Industry had great exhibit of computers. > I remember they had an IBM RAMAC 305 (I think it was working) along with > many other historic devices. Saw one version of it a few years ago. I don't think their RAMAC works.

new IBM zBC12

2013-07-25 Thread Dave Jones
http://bits.blogs.nytimes.com/2013/07/23/mainframe-computers-that-change-with-the-times/?_r=0 -- Dave Jones V/Soft Software www.vsoft-software.com Houston, TX 281.578.7544 -- For LINUX-390 subscribe / signoff / archive access inst

Re: TX-Errs on hipersocket interface.

2013-07-25 Thread Ursula Braun
Ron, Carsten's first explanation is correct. If you see tx_errors on a HiperSockets interface, it usually means transmission of a packet fails because the receiver has currently no free receive buffer. You should verify first if the receiver has configured the maximum of 128 buffers (sysfs attribu

Re: TX-Errs on hipersocket interface.

2013-07-25 Thread Veencamp, Jonathon D.
Question: Why would SLES 11 see hipersocket retransmits and window adjustments and not SLES 10? Is the device driver either more forgiving or efficient on SLES 10? I'm just curious. I may be in the same situation soon. Regards Jon Veencamp Federated Insurance -Original Message- From

What version am I running?

2013-07-25 Thread Mark Pace
I know I've read how to do this in the past, but I can not find it anywhere in my archives. How do I determine what version of SLES I am running? -- The postings on this site are my own and don’t necessarily represent Mainline’s positions or opinions Mark D Pace Senior Systems Engineer Mainline

Re: What version am I running?

2013-07-25 Thread Pedro Principeza
Hi Mark. Run: # cat /etc/SuSE-release # uname -a That'll tell you the version of SuSE and the kernel version + patches. -- Pedro Principeza From: Mark Pace To: LINUX-390@vm.marist.edu, Date: 25/07/2013 15:30 Subject:What version am I running? Sent by:Linux on 390 Po

Re: TX-Errs on hipersocket interface.

2013-07-25 Thread Ron Foster
The receiver is zos. Anybody here know how to increase the buffers in zos. Ron Sent from my iPhone On Jul 25, 2013, at 1:14 PM, "Ursula Braun" wrote: > Ron, > > Carsten's first explanation is correct. If you see tx_errors on a > HiperSockets interface, it usually means transmission of a pac

Re: What version am I running?

2013-07-25 Thread Mauro Souza
I usually run # cat /etc/*release So wherever it's SuSE, RedHat, Ubuntu, Fedora or almost anything, I can get the distro version. And to get the kernel version: # uname -a Mauro http://mauro.limeiratem.com - registered Linux User: 294521 Scripture is both history, and a love letter from God.

Re: TX-Errs on hipersocket interface.

2013-07-25 Thread Bruce Hayden
Ron, See page 11 of this presentation: http://www.vm.ibm.com/service/vmreqzeh.html This presentation is found on http://www.ibm.com/developerworks/linux/linux390/perf/tuning_networking.htmlwhere there are other good tuning tips. On Thu, Jul 25, 2013 at 2:42 PM, Ron Foster wrote: > The receiver i

Re: What version am I running?

2013-07-25 Thread Mark Pace
Thank you both. I knew it was simple, but I just couldn't find it. Now I need a better memory, because my main FTP server says it's SP2 and I do NOT remember upgrading it. :( Oh well, one less step to get it to SP3. :) On Thu, Jul 25, 2013 at 2:43 PM, Mauro Souza wrote: > I usually run > #