Re: OT (was Re: RHEL 5.4 Beta is out in the wild)

2009-07-07 Thread Agblad Tore
Funny this thing with words. The word stool meaning chair in english, you know the swedish word for chair is 'stol' ! Cordialement / Vriendelijke Groeten / Best Regards / Med Vänliga Hälsningar Tore Agblad Volvo Information Technology Infrastructure Mainframe Design Development

SLeS10 SP1 - hipersocket via YAST

2009-07-07 Thread Ceruti, Gerard G
HI All Anyone got a presentation or document that covers the creation of Hipersockets using YAST ?, We have done it via command line but for completeness would like to cove the YAST option as well. Gerard Ceruti | Technical Specialist |Mainframe Systems | Standard Bank South Africa |Riverclub

Re: OT (was Re: RHEL 5.4 Beta is out in the wild)

2009-07-07 Thread John Summerfield
Agblad Tore wrote: Funny this thing with words. The word stool meaning chair in english, you know the swedish word for chair is 'stol' ! Don't imagine that stool means chair in modern English. One sits on either, but a stool has no back and is used less formally. Perfectly consistent with

Re: OT (was Re: RHEL 5.4 Beta is out in the wild)

2009-07-07 Thread John Summerfield
Erik N Johnson wrote: and I believe Australia the word rutting is used to mean the same activity with which most English speakers commonly associate the F word. Not commonly, but it's known. However, there's a (probably) related four-letter word that is considered vulgar. It's always amused

Re: OT (was Re: RHEL 5.4 Beta is out in the wild)

2009-07-07 Thread Alan Cox
On Tue, 7 Jul 2009 20:33:41 +0800 John Summerfield deb...@herakles.homelinux.org wrote: Agblad Tore wrote: Funny this thing with words. The word stool meaning chair in english, you know the swedish word for chair is 'stol' ! Don't imagine that stool means chair in modern English. One

Who is using zfcp attached SCSI devices?

2009-07-07 Thread Thorsten Diehl
Hi all, I'm curious and would like to know, who is using zfcp attached SCSI devices. If you like, please answer the following questions: 1. Type (Manufacturer/Model) of the SAN Gateway/Bridge 2. Category, Type and number of attached SCSI devices (e.g. SCSI Tapes, DVD drives, disks) 3. Your

Oracle 10g R2 on RHEL 4.5 on System z Performance

2009-07-07 Thread Shawn Wells
This paper - Describes the setup of an environment using the Oracle 10g R2 database on RHEL 4.5 on IBM System z - Compares the performance of importing data into the database on the new IBM System z10 and legacy IBM System z9 This project emerged from a customer considering to

Re: Who is using zfcp attached SCSI devices?

2009-07-07 Thread Richard Troth
We use SAN attached disk at my shop. I should refrain from indicating which vendor (in this context) because I should not convey some kind endorsement. We do not presently use SAN attached tape nor CD or DVD. The devices are connected via switched fabric (yet another vendor used for the

Interesting z/VM 6.1

2009-07-07 Thread Huegel, Thomas
I just saw this on the VM list. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=cainfotype=an appname=iSourcesupplier=877letternum=ENUSZA09-0015opencm_mmc=5350-_ -n-_-vrm_newsletter-_-10576_121006cmibm_em=dm:0:10667996

Re: Interesting z/VM 6.1

2009-07-07 Thread Alan Altmark
On Tuesday, 07/07/2009 at 10:51 EDT, Huegel, Thomas thue...@kable.com wrote: I just saw this on the VM list. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=cainfotype=an appname=iSourcesupplier=877letternum=ENUSZA09-0015opencm_mmc=5350-_

Re: Oracle 10g R2 on RHEL 4.5 on System z Performance

2009-07-07 Thread Shockley, Gerard C
Thanks Shawn, Might also be interesting to see that same study with Oracle 10.2.0.4. Gerard -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Shawn Wells Sent: Tuesday, July 07, 2009 9:39 AM To: LINUX-390@VM.MARIST.EDU Subject: Oracle 10g R2

Re: Who is using zfcp attached SCSI devices?

2009-07-07 Thread Thorsten Diehl
Hi Rick, hi all, thanks for your responses so far. To be a little more precise: I meant your environment behind a SAN Gateway/Bridge, not natively attached zfcp devices. With kind regards Thorsten Diehl System Test Linux on System z IBM Deutschland Research Development GmbH Vorsitzender des

Re: Who is using zfcp attached SCSI devices?

2009-07-07 Thread Mark Post
On 7/7/2009 at 9:34 AM, Thorsten Diehl tdi...@linux.vnet.ibm.com wrote: Hi all, I'm curious and would like to know, who is using zfcp attached SCSI devices. Hi, Thorsten, I'm curious as to why you're curious. I'm aware of a number of my customers using SCSI over FCP. If your interest

Re: SLeS10 SP1 - hipersocket via YAST

2009-07-07 Thread Mark Post
On 7/7/2009 at 7:50 AM, Ceruti, Gerard G gerard.cer...@standardbank.co.za wrote: HI All Anyone got a presentation or document that covers the creation of Hipersockets using YAST ?, We have done it via command line but for completeness would like to cove the YAST option as well. yast

Re: Who is using SCSI devices behind a SAN gateway?

2009-07-07 Thread Thorsten Diehl
Hi Mark, well, my wording was not precise enough. Thus I just changed the subject. I'm not interested in the details of the commonly used fibre channel attached (switched fabric) environments, but in the setups where customers have (Ultra-)SCSI Devices attached via a SAN Gateway. The latter

Re: SLeS10 SP1 - hipersocket via YAST

2009-07-07 Thread Ceruti, Gerard G
Thanks Mark Regards Gerard Ceruti may the 'z' be with you SharePoint (internal) -Original Message- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Mark Post Sent: 07 July 2009 18:43 To: LINUX-390@VM.MARIST.EDU Subject: Re: SLeS10 SP1 - hipersocket via YAST On

Re: Who is using SCSI devices behind a SAN gateway?

2009-07-07 Thread Mark Post
On 7/7/2009 at 1:43 PM, Thorsten Diehl tdi...@linux.vnet.ibm.com wrote: Hi Mark, well, my wording was not precise enough. Thus I just changed the subject. I'm not interested in the details of the commonly used fibre channel attached (switched fabric) environments, but in the setups where

Re: OT (was Re: RHEL 5.4 Beta is out in the wild)

2009-07-07 Thread Andrej
2009/7/7 Agblad Tore tore.agb...@volvo.com: Funny this thing with words. The word stool meaning chair in english, you know the swedish word for chair is 'stol' ! For all it's worth: it's 'stol' in Slovene, too. :} Cheers, Andrej -- Please don't top post, and don't use HTML e-Mail :} Make

Clearing linux buffers and caches

2009-07-07 Thread Deric Abel
I recently discovered a command that will clear out the caches and buffers for linux in the later 2.6 kernels (this seems to be available for sles 10 and higher) sync; echo 3 /proc/sys/vm/drop_caches This frees up all the memory that linux is using as buffers and cache and doesn't appear to

Re: Clearing linux buffers and caches

2009-07-07 Thread Mark Post
On 7/7/2009 at 6:02 PM, Deric Abel da...@americafirst.com wrote: -snip- Is there any harm in running this command, and if not, what about setting it to run every hour or so in cron, therefore making sure that linux doesn't eat up any more memory then it needs to? Yes, it will hurt your

Re: Clearing linux buffers and caches

2009-07-07 Thread Ivan Warren
Mark Post wrote: Yes, it will hurt your Linux system's performance, while not doing anything useful. Just because Linux no longer treats those pages as being used doesn't mean z/VM sees them as free. If you want to make sure Linux doesn't eat up any more memory than it needs to then shrink

Re: OT (was Re: RHEL 5.4 Beta is out in the wild)

2009-07-07 Thread Rodger Donaldson
On Wed, July 8, 2009 00:33, John Summerfield wrote: Agblad Tore wrote: Funny this thing with words. The word stool meaning chair in english, you know the swedish word for chair is 'stol' ! Don't imagine that stool means chair in modern English. One sits on either, but a stool has no back

Re: Clearing linux buffers and caches

2009-07-07 Thread Mark Post
On 7/7/2009 at 6:37 PM, Ivan Warren i...@vmfacility.fr wrote: Does that still hold true when using CMMA ? Of course not. CMM and CMMA are designed interfaces between Linux and z/VM. Their whole purpose in life is to let the two work together on virtual memory management. Mark Post

Re: Clearing linux buffers and caches

2009-07-07 Thread Rob van der Heij
On Wed, Jul 8, 2009 at 12:16 AM, Mark Postmp...@novell.com wrote: Yes, it will hurt your Linux system's performance, while not doing anything useful. It was meant as a way for benchmarks to start off with a clean cache so the first test does not spoil the next one. But if you want to do that

Re: Clearing linux buffers and caches

2009-07-07 Thread Ivan Warren
Mark Post wrote: Of course not. CMM and CMMA are designed interfaces between Linux and z/VM. Their whole purpose in life is to let the two work together on virtual memory management. Precisely ! if the linux kernel deems the page to be 'free' (and dropping a page from buffer/cache

Re: Clearing linux buffers and caches

2009-07-07 Thread Mark Post
On 7/7/2009 at 7:26 PM, Ivan Warren i...@vmfacility.fr wrote: You were stating : MP: - Just because Linux no longer treats those pages as being used doesn't mean z/VM sees them as free. What I am saying is that, on the contrary, when linux treats those pages as no longer being in use, z/VM

Re: Clearing linux buffers and caches

2009-07-07 Thread Rob van der Heij
On Wed, Jul 8, 2009 at 1:26 AM, Ivan Warreni...@vmfacility.fr wrote: What I am saying is that, on the contrary, when linux treats those pages as no longer being in use, z/VM *WILL* see them as free ! I think you have read too much glossy marketing PDFs :-) All we know is that VM *could* see

Re: Clearing linux buffers and caches

2009-07-07 Thread Ivan Warren
Rob van der Heij wrote: On Wed, Jul 8, 2009 at 1:26 AM, Ivan Warreni...@vmfacility.fr wrote: What I am saying is that, on the contrary, when linux treats those pages as no longer being in use, z/VM *WILL* see them as free ! I think you have read too much glossy marketing PDFs :-) All we

Re: Clearing linux buffers and caches

2009-07-07 Thread Ivan Warren
Mark Post wrote: In the context of the original question, I stand by my response. Introducing all sort of hypothetical situations will change just about any answer. Mark, I don't understand.. The original question was : Will sync; echo 3 /proc/sys/vm/drop_caches have any adverse effect

Re: Clearing linux buffers and caches

2009-07-07 Thread Mark Post
On 7/7/2009 at 9:00 PM, Ivan Warren i...@vmfacility.fr wrote: To which I commented : Would CMMA change this ? To which you answered no (with the implication that linux free page management is not connected to z/VM's own free page management - but only a protocol to But that wasn't your

Re: Clearing linux buffers and caches

2009-07-07 Thread Ivan Warren
Mark Post wrote: But that wasn't your comment/question. You asked if my original answer would apply to CMMA, and I said no, it would not apply to CMMA, since that is an architected interface between Linux and z/VM, implying that the drop cache /proc interface is not. And indeed it is not.

Re: Interesting z/VM 6.1

2009-07-07 Thread John Summerfield
Alan Altmark wrote: On Tuesday, 07/07/2009 at 10:51 EDT, Huegel, Thomas thue...@kable.com wrote: I just saw this on the VM list. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=cainfotype=an appname=iSourcesupplier=877letternum=ENUSZA09-0015opencm_mmc=5350-_

Re: Interesting z/VM 6.1

2009-07-07 Thread Jan Vanbrabant
The faq is excellent: http://www.vm.ibm.com/faq/faq61.pdf jan -- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit