Re: USS->Linux

2008-02-15 Thread Rich Smrcina
Anatol, Since you'll be outside of z/OS you'll have to use some sort of socket based communications mechanism. There may be a few ways to tackle this: - Teach the MVS application to talk to a socket and listen for connections from the Linux application - Write another application to do the list

USS->Linux

2008-02-15 Thread Anatol Zolotusky
I'm new to this list, and the FAQ link doesn't work, so please excuse possible redundancy. We have a C++ application on USS, which communicates with an MVS application via a shared memory segment and binary semaphores. Presently we're contemplating porting that application to Linux on IFL. I wonde

Re: re-building the Etch kernel

2008-02-15 Thread Adam Thornton
On Feb 15, 2008, at 9:33 PM, Dennis Foreman wrote: The make-kpkg itself gave a good return code, but after I did the shutdown/restart and ran BOOTDEB, it hung, trying to find its tty device. Make sure you have a static /dev/console, which is a character device, major 5, minor 0 on your initrd.

Re: re-building the Etch kernel

2008-02-15 Thread Dennis Foreman
The make-kpkg itself gave a good return code, but after I did the shutdown/restart and ran BOOTDEB, it hung, trying to find its tty device. Is there any information I could post that would help figure this out? Regards, DJ Foreman -Original Message- From: Linux on 390 Port [mailto:[EMAIL

Re: re-building the Etch kernel

2008-02-15 Thread Adam Thornton
On Feb 15, 2008, at 7:05 PM, Dennis Foreman wrote: Hello, I hope this is the place posting this question. If not, I hope you can point me in the right direction. I am teaching a course in Operating Systems. My class is using Debian Etch on z/VM and each student will be required to re-build the k

re-building the Etch kernel

2008-02-15 Thread Dennis Foreman
Hello, I hope this is the place posting this question. If not, I hope you can point me in the right direction. I am teaching a course in Operating Systems. My class is using Debian Etch on z/VM and each student will be required to re-build the kernel with his/her own changes. Is there a set of inst

Re: Linux filesystem performance

2008-02-15 Thread Adam Thornton
On Feb 15, 2008, at 4:48 PM, Edmund R. MacKenty wrote: I don't know the details of how each filesystem works, so I'm probably wrong about this, but I suspect that the "reiserfs" type of filesystem would do better than "ext2", because reiserfs uses a B-tree internally to avoid linear searches thro

Re: Linux filesystem performance

2008-02-15 Thread Edmund R. MacKenty
On Friday 15 February 2008 16:16, Aria Bamdad wrote: >I have a general Linux question that could apply to any platform. > >From a performance standpoint, would linux perform better if you >have two filesystems each with N million files or one file system >with N*2 million files on it. This would b

Re: Linux filesystem performance

2008-02-15 Thread David Boyes
> >From a performance standpoint, would linux perform better if you > have two filesystems each with N million files or one file system > with N*2 million files on it. This would be purely the way the > file systms are maintained by Linux. Please ignore performance due to > different drives/chann

Linux filesystem performance

2008-02-15 Thread Aria Bamdad
Hi, I have a general Linux question that could apply to any platform. >From a performance standpoint, would linux perform better if you have two filesystems each with N million files or one file system with N*2 million files on it. This would be purely the way the file systms are maintained by L

Re: Getting a tape drive to work with Bacula from VM.

2008-02-15 Thread Bruce Arro
Hi So the bacula-sd config file is something like this, Changer command - /etc/bacula/mtx-changer.pl - arguments - Changer device = vmhost:50200 . . archive device = /dev/ntibm0 Tape labels = ANSI Check labels = Yes Regards From: Linux on 390 Port on beha

Re: SAP Certification on System z

2008-02-15 Thread Rich Smrcina
Ok, point taken... Some people may argue that DB2 on z/OS is the perfect solution, I tend to disagree. But at least customers could be offered a choice, and I don't consider DB2 on AIX or Windows or even Linux on Intel a choice. Mark Perry wrote: Rich Smrcina wrote: It's pretty sad that DB2 U

Re: SAP Certification on System z

2008-02-15 Thread Mark Perry
Rich Smrcina wrote: It's pretty sad that DB2 UDB on Linux for System z isn't supported, that would be a very perfect solution. I'm curious, what's the difference between "perfect" and "very perfect"? Perfectionist ;-) mark --

Re: SAP Certification on System z

2008-02-15 Thread Rich Smrcina
It's pretty sad that DB2 UDB on Linux for System z isn't supported, that would be a very perfect solution. Max Bage wrote: I'was reading an announcement from RedHat and SAP about certification and support on Linux for System z. Does anyobody know if this support is also for DB on Linux for Syste

Re: Getting a tape drive to work with Bacula from VM.

2008-02-15 Thread David Boyes
IBM does not support changer access for channel attached tape drives on Linux for Z. You have to get another virtual machine to help out -- thus the tools that Adam wrote. The PDF file included with the BACULATM execs describes the setup in detail. There are examples in that document that came fro

Re: Getting a tape drive to work with Bacula from VM.

2008-02-15 Thread Adam Thornton
On Feb 15, 2008, at 7:06 AM, Bruce Arro wrote: Hi All I`m trying to get a 3490 tape drive working with bacula from VM. This is where I am. Installed the Z/vm utilities. BACULATM and RAWBACULA and well as the labeling utilities. I can get the tape online from Linux with the command chccwdev -

Getting a tape drive to work with Bacula from VM.

2008-02-15 Thread Bruce Arro
Hi All I`m trying to get a 3490 tape drive working with bacula from VM. This is where I am. Installed the Z/vm utilities. BACULATM and RAWBACULA and well as the labeling utilities. I can get the tape online from Linux with the command chccwdev - e 0.0.0181. But when I run ./btape -c /etc

Re: Copying 3390-9 to 3390-3 Linux LVM under z/VM.

2008-02-15 Thread Rob van der Heij
On Fri, Feb 15, 2008 at 10:04 AM, Jose Raul Baron <[EMAIL PROTECTED]> wrote: > Why is it that there's the same problem everywhere ? > Life would be much easier and problems could be solved faster and better > with just some more DASD but it seems like the management guys must create > the dasd

Re: Copying 3390-9 to 3390-3 Linux LVM under z/VM.

2008-02-15 Thread Jose Raul Baron
Why is it that there's the same problem everywhere ? Life would be much easier and problems could be solved faster and better with just some more DASD but it seems like the management guys must create the dasd themselves... >From time to time drop a little BOO !! to them for them to realize EVERYON

Re: Running Oracle on GT 2 IFLs

2008-02-15 Thread Rob van der Heij
On Thu, Feb 14, 2008 at 10:26 PM, Jim Elliott <[EMAIL PROTECTED]> wrote: > For the most part my view is from observation, not actual > studies. And as Mark pointed out, we are talking about two REAL > processors here with a Virtual 2-way running on it. IBM > recommends that you always run Domi

Re: Copying 3390-9 to 3390-3 Linux LVM under z/VM.

2008-02-15 Thread Jose Raul Baron
In order to have not just a VG but a full backup (that is, security 100%): Just in case that it might help, we have 3 identical Linux images for different purposes (Real, Mirror and Test) running DB2 Databases that we DDR from one system to another every day so that we can test any innovation in t