Ranga Nathan wrote:
This is bad news for me. Just got xntpd working for my Linux LPAR and was
thinking about how things will work under z/VM.
Does not z/VM run a virtual clock for the guests?
Would xntpd not work for the guests?
__
I believe the case that
'Scuse me, I'm confused.
If these binary files were created on an ASCII thinking box
and those files were uploaded to MVS without any translation
then you don't want to translate them to/from ASCII EBCDIC
as you don't care.
An example would better illustrate the thinking here...
Example, I create
We've got a curious problem here with some linux-guests on a z990 with zVM44
and SLES8, k_deflt-2.4.21-221, Gigabit Ethernet OSA. Sometimes all network
connections are going down, e.g. all ssh sessions get lost with timeout etc.
A ping doesn't reach the linux. Pings from direct network-neighbours
Hi All,
I have LVM 0.9.1 installed on a suse 7.2 production Lpar
When i run vgscan it goes like that
itapoa:/ora-backup # vgscan
vgscan -- reading all physical volumes (this may take a while...)
vgscan -- found active volume group discovg08
vgscan -- found active volume group discovg
Does dasdbp1 exist? Send the output from 'cat /dev/dasd/devices'.
On Tue, 2004-07-13 at 08:14, Nilson Vieira wrote:
Hi All,
I have LVM 0.9.1 installed on a suse 7.2 production Lpar
When i run vgscan it goes like that
itapoa:/ora-backup # vgscan
vgscan -- reading all physical
On Mon, 2004-07-12 at 19:43, Ranga Nathan wrote:
This is bad news for me. Just got xntpd working for my Linux LPAR and was
thinking about how things will work under z/VM.
Does not z/VM run a virtual clock for the guests?
Would xntpd not work for the guests?
I've certainly never seen it.
connections are going down, e.g. all ssh sessions get lost with
timeout
etc. A ping doesn't reach the linux. Pings from direct
network-neighbours
to the linux fail, too.
snip
(around 20-45 minutes), suddenly the linux answers again. There are no
error-messages in /var/log/messages.
Sounds
Hi,
We are looking at a pilot project to test an Oracle database running on
Linux/zVM. Currently we have about five applications that run on various
HP Unix servers. Each of these applications connect to their own Oracle
instance. Each instance is about 300GB, so we have 1.5TB for the
On Tue, 2004-07-13 at 07:30, Sebastian Korte wrote:
I cannot reproduce
this error, so I have to wait until it happens the next time. Any hints what
I can do when it happens again next time?
I'm going to guess you have way too much memory specified in the Linux
guest's directory entry--maybe
On Tue, 2004-07-13 at 09:13, Ken Vance wrote:
Does anyone know how to
compare the CPUs between the two platforms?
There's no real good way except for actually testing a representative
workload.
The Project people are also worried that the VM overhead will result in
slow response times. We
Please see the What's New page at:
http://www10.software.ibm.com/developerworks/opensource/linux390/whatsnew.shtml
for a change summary of the 2004-07-13 additions and changes to the
Linux for zSeries and S/390 developerWorks Web pages.
OCOs for Red Hat:
- tape_3590 for RHEL AS v.3, kernel
IBM offers some comparison engines for this type of workload when moving to a
z/series. The more (accurate) data you can
get from the HP Unix servers the closer IBM CPU and memory requirement will be to
reality. IBM I'm sure would be glad to help.
Don't think CP overhead will be a limiting
Folks, does anyone know how to build a Linux 2.4.x kernel that has Linux
file caching disabled? I want to disable Linux's file caching and let
CP's minidisk caching functions do it instead, and to reduce the virtual
storage requirements for the guest.
TIA.
--
Dave Jones
Houston, TX
Ken, IBM has a couple of modleing tools available to size the workload on
zLinux and IFLs/Memory. If you have a locak IBM rep or business partner rep
You may want to ask about the Size390 or New Workload sizing that IBM
Techline performs. This service is no cost and can assist in getting an
That's not a build option. There are _some_ virtual memory tuning knobs,
but they're not especially effective. The best way found so far is to
simply shrink the virtual storage size of the guest to the point where it
starts paging out unused pages (hopefully to a vdisk), leaving the rest for
itapoa:/ # cat /proc/dasd/devices
0f41(ECKD) at ( 94: 0) is dasda:active at blocksize: 4096, 601020 blocks,
2347 MB
0f42(ECKD) at ( 94: 4) is dasdb:active at blocksize: 4096, 601020 blocks,
2347 MB
0f4d(ECKD) at ( 94: 8) is dasdc:active at blocksize: 4096, 601020 blocks,
2347 MB
0f4e(ECKD) at (
Well, you've come to the right place :)
We've just migrated our HP-UX Oracle server to Linux on zSeries. We had an
N-4000 with two CPU's (440mhz) PA-RISC 8500. It was far overloaded. It is
currently using about 95% of one IFL.
-Original Message-
From: richard truett
In most cases, that would not have been done. The upload would have been
non-binary for the HTML files.
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Rod
Furey
Sent: Tuesday, July 13, 2004 6:08 AM
To: [EMAIL PROTECTED]
Subject: Re: web
Since you're using dasdbp1, did you put at least one partition on the
device (with fdasd)?
On Tue, 2004-07-13 at 09:16, Nilson Vieira wrote:
itapoa:/ # cat /proc/dasd/devices
0f41(ECKD) at ( 94: 0) is dasda:active at blocksize: 4096, 601020 blocks,
2347 MB
0f42(ECKD) at ( 94: 4) is
Slightly apples-to-oranges, but we discovered that using reiser with
virtualization on Intel led to huge performance losses. With 15 UML machines
with reiser root drives, we were seeing 100% CPU load on the host while idle,
and almost unuseable performance in the guests. Changing to ext3 w/out
Ken,
Richard is on the right track here. Short of a Size390 sizing I can tell
you that the range of relative capacity between a z900 is quite broad. The
actual result will depend on what kind of workload is being done (query
only, some updates, heavy transactional), the cache working set
Hi,
I've downloaded from Marist Web Site Linux for s/390, to try linux under Vm.
I've made all the installation step but when I must write kernel then procedure
abend and I don't know why.
This is the abend step :
/sbin/silo -F carli.config -d /dev/dasda -p parmfile -b silo -F
silo -d /dev/dasda -b ipleckd.boot -B boot.map -f image -t2
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Gardini Marco
Sent: Tuesday, July 13, 2004 11:55 AM
To: [EMAIL PROTECTED]
Subject: I: kernel error
Importance: High
Hi,
I've
On Maw, 2004-07-13 at 17:19, Dave Jones wrote:
Folks, does anyone know how to build a Linux 2.4.x kernel that has Linux
file caching disabled? I want to disable Linux's file caching and let
CP's minidisk caching functions do it instead, and to reduce the virtual
storage requirements for the
Dave,
Could you not create a raw device and install a filesystem on it for
your data? Access to the raw device would bypass the Linux cache.
Regards
Jeff
--
Jeffrey C Barnard
Barnard Software, Inc. http://www.bsiopti.com
Phone 407-323-4773 Fax 407-323-4775
This may be why our Linux LPAR is very slow.
Perhaps we should change from ReiserFS to ext3.
Is it simple as copying to somewhere else, doing mkfs and then copying
back?
If someone has a procedure, please let me know.
Thanks
__
Ranga Nathan / CSG
Systems
I still have problems getting that to compile, even with the tree-ssa
version. The compile runs for quite a while on the other languages, and
then I get this:
gcc -c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -fno-common -DHAVE_CONFIG_H-I. -Ipl1
Did you follow the instructions in the README about setting up symbolic links?
-Original Message-
I still have problems getting that to compile, even with the tree-ssa
version. The compile runs for quite a while on the other languages, and
then I get this:
gcc -c -g -O2 -DIN_GCC -W
Yes. That's what allowed the (one) compile I showed to complete
successfully.
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Ferguson, Neale
Sent: Tuesday, July 13, 2004 4:19 PM
To: [EMAIL PROTECTED]
Subject: Re: Progress on PL/1 for Linux
yes
- Original Message -
From: Post, Mark K [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, July 13, 2004 2:12 PM
Subject: Re: LVM problem
And does the device node in /dev exist? With the correct major/minor
number? (254/13)
Mark Post
-Original Message-
From:
To the list,
I am looking for a couple of good basic editors that are command line or
gui but are free or come with SuSE SLES8 for zSeries ?
Anything but vi or vim that would be good for very infrequent users of an
editor.
TIA.
Regards,
Terry L. Spaulding
IBM Global Services
[EMAIL
./configure
make
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Ferguson, Neale
Sent: Tuesday, July 13, 2004 4:37 PM
To: [EMAIL PROTECTED]
Subject: Re: Progress on PL/1 for Linux
What were your configure and make parameters?
-Original
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On
Behalf Of Terry Spaulding
Sent: Tuesday, July 13, 2004 3:45 PM
To: [EMAIL PROTECTED]
Subject: good basic editors: gui or command line
Importance: High
To the list,
I am looking for a couple of good
I did:
./configure --enable-threads=posix --prefix=/opt/gcc
--with-local-prefix=/opt/gcc/local --infodir=/opt/gcc/share/info
--mandir=/opt/gcc/share/man --disable-checking --libdir=/opt/gcc/lib --enable-libgcj
--with-gxx-include-dir=/opt/gcc/include/g++ --with-system-zlib --enable-shared
If you are interested in something with a mainframe look and feel,
install THE. It's on the SLES CD and has an XEdit compatibility mode.
On Tue, 2004-07-13 at 15:44, Terry Spaulding wrote:
To the list,
I am looking for a couple of good basic editors that are command line or
gui but are free
THE and its pre-req Regina are included in SLES.
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Terry
Spaulding
Sent: Tuesday, July 13, 2004 4:45 PM
To: [EMAIL PROTECTED]
Subject: good basic editors: gui or command line
To the list,
I am
You could use pico or nano. But they lack the power of vim.
Once you get over the learning hump you will find that vim offers great
syntax highlighting, limitless undo etc.
There is a cheat sheet available on the web too.
I hated vi for a long while but when forced to learn, found vim a great
I think I know what the problem is. As soon as I verify it (or not), I'll
let everyone know.
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Ferguson, Neale
Sent: Tuesday, July 13, 2004 4:51 PM
To: [EMAIL PROTECTED]
Subject: Re: Progress on
Mark Post wrote:
./configure
make
Note that building in the source directory has been known to not
work reliably for the GCC tree. In fact, there even have been
discussions to officially declare this unsupported ...
I'd recommend to build in a different object directory, just to
avoid
The problem was that the pl1 Makefile fragment doesn't support building gcc
the way the gcc developers recommend. That is, have a directory in which
you untar the gcc source code, which will be named gcc-3.3.4 or gcc-3.4.0,
and in that same directory, another directory, say gcc.build from which
Ulrich,
Talk about good timing. I normally do build that way. As it turns out, it
fails miserably in this case. As my other note says, doing it the wrong way
still generates errors. I've never trusted bison-generated source code, and
this is why.
Mark Post
-Original Message-
From:
I will try THE.
Thanks to all that replied
-
If you are interested in something with a mainframe look and feel,
install THE. It's on the SLES CD and has an XEdit compatibility mode.
On Tue, 2004-07-13 at 15:44, Terry Spaulding
For cli (curses) based editors, there are:
- joe (excellent old style WordStar clone)
- EMACS (You think vi is tough...)
- Pico/Nano (Simplistic editor with few features)
- ex (A command line and scriptable version of vi)
- sed (A stream editor, similar to ex, but for streams)
- ed (worse
Another excellent editor is jedit. I haven't tried it with zLinux yet, but I use it in
Linux and Windows and haven't had any snags yet. It's implemented in Java, so it
should run anywhere... (Write once, test everywhere...)
Robert P. Nixinternet: [EMAIL
Ok, what does
fdasd -p /dev/dasdbp
display?
Mark Post
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Nilson
Vieira
Sent: Tuesday, July 13, 2004 4:31 PM
To: [EMAIL PROTECTED]
Subject: Re: LVM problem
yes
- Original Message -
From: Post, Mark
I think there are a few options other than the intuitive ones.
I saw in some lab experiments some trick where you can mount a
filesystem Synchrounous or something so that Linux does not
buffer output. Not sure if this affects reads.
There is also the new cooperative memory management where
one
Hi all,
Sorry for the extremely late post on this thread, as I just came across
it, but I can never resist a discussion on different languages' plusses
and minuses!
David is quite right: several brokerages used APL quite heavily. They
would hire people out of business school and throw them into
On Maw, 2004-07-13 at 22:07, Brandon Darbro wrote:
- ed (worse than edlin for DOS...)
Thats unfair, ed is vastly more logical and powerful than edlin. Its an
extrodinarily elegant tool if you know what you are doing and understand
regexps..
- Gedit (Gnomes editor)
Gedit can be extremely
On Maw, 2004-07-13 at 23:42, Jeffrey Savit wrote:
David is quite right: several brokerages used APL quite heavily. They
would hire people out of business school and throw them into analytics
departments. When I started working with these guys I was aghast at the
idea of using interpreted APL
I asked about this almost 2 years ago. I was thinking along the same
line as yourself. I was told it wasn't available AND if it could be
disabled, it may break a lot of code. Linux caching also includes write
caching. So your writes don't immediately pass to CP (much less the I/O
boundry)
Hello Mark,
I just got Ulrich's email supporting this statement as the preferred method.
:) Regardless, it does _not_ work for the PL/1 code. :(
This is weird. They should fix their Makefile ...
Even doing it the
wrong way to get it to compile, I now get this error:
This is a typical
Please remove my e-mail from the list. Thanks.
--
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