I'm not speaking IBM as a corporation, just expressing my own observations.
As IBM supplies the great bulk of its S/390 modifications as source
patches, including CKD dasd, I don't see OCO for OSA cards as a Linux
issue, per se, nor an open source issue.
Rather, QDIO is a hardware feature, for
Under SuSE slse7, I can format a volume with a VTOC with the command:
dasdfmt -b 4096 -l SIBLEY -d cdl -v -p -f /dev/dasdg
However, when I try a mke2fs on the pack
mke2fs -b 4096 /dev/dasdg1
it fails with the message:
mke2fs: Device size seems to be zero. .
Do I need some
With the new portname requirement for OSA Express QDIO cards, has anyone
tried ipling a 2.4.7 install tape in an lpar and use QDIO?
I was wondering how this would work since, under 2.4.7, the portname is
entered on a separate card (addparm). In 2.2.16, QDIO is on a single
parameter line.
Rob van der Heij
I notice a few inconsistencies in the dynamic attach/detach ...
Out of curiosity, which distribution are you working from?
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
** Grace Happens **
David Boyes wrote:
2) During migration to the best way; Can my current LINUX
image share the
OSA-E with zVM?
And, if yes, how? I can't seem to find an example of
sharing a OSA-E
in the books.
I have seen the warnings about the need for both OS to specify
portname. But,
John Taylor wrote:
What I don't know is how to manually concoct an insmod qeth command so
as to get this working.
insmod qeth qeth_options=noatuo,0xee00,0xee01,0xee02,portname:OSA1
add_parms,0x10,0xee00,0xee02,portname:OSA1
(Note where upper case is used - only the portname - assuming there
Ooops, sorrty. The portname should only be on the addparms statement and it
is two lines.
Jim, I'm guessing that the command below is all on one line (though it
seems curious to specify the portname twice). The response I get is
invalid parm_qeth_options, any other thoughts greatly appreciated.
Mark Post wrote:
Hmm. You need to spend a few minutes learning some basic vi commands.
Creating .conf files with echo is certainly feasible, but not very
desirable!
If you're trying to get the network up and you have to work from the HMC,
you're stuck with echo, ex, or sed, and then only if
I am trying to find out how fast I can push several OSA GBX cards under
SuSE 2.2.16. I have been able to double the FTP rate by changing the MTU
size to 9000. This also benefits my 4k transaction processing. What other
parameters can I adjust in TCP/IP to reduce delays and increase buffer
sizes.
Has anyone tried RAWIO on z/Series Linux (either 2.2.16 or 2.4.7)? Any
hints?
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
FYI,as I know it will come up eventually in this forum, so I've included an
example:
The system is 2.4.7, SuSE GA (10/30/01 kernel)
I have a hipersocket connection, 2 OSA GB express, and 1 OSA FEX installed
on my zSeries in 3 LPARS. To get them all working at the same time, I coded
the
Steve Arden wrote:
Does anyone know how to move Logical Volumes from one Linux guest to
another?
I haven't tried 2.2.16 to 2.4.7, but I have moved LVM between LPAR systems.
1) on the new system, do a vgscan to locate all the LVM volumes
2) activate the volume groups with vgchange -a y vgname
Under 2.4.7, you can use the sysctl command to interrogate and set many
kernel variables, including max files
sysctl -a | less to see the variables
sysctl -w fs.file-max=16834 to increase the maximum number
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
The UnitedLinux Website is at
http://unitedlinux.com/
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
We are running some database runs which overcommit memory. One of the
things I've noticed is that, with mulitple swap volumes, it does NOT spread
the load, but fills up the first swap volume, then the second and so forth.
The result during heavy paging is then a bottleneck against the fullest
To my question:
Shouldn't the paging algorithm spread the I/O across all of the swap
devices available to balance the load?
Willem Konynenberg replied:
When you didn't explicitly specify a priority for each swap volume,
the system automatically assigned priorities in descending order.
If you
Rob van der Heij wrote:
What we came up with is to run a job now and then that files most
of the unused space with a single big file that is easy to compress
(e.g. all blanks) and then remove that file again. I was told this
did help SFS a lot.
I can confirm what Rob is seeing for Linux.
On an
Has anyone looked at good parameters for bdflush for 2.4.7 and 2.4.17? The
defaults seem to leave a lot to be desired.
I've found my problem. It seems that if JFS is compiled in the kernel, there
is some interference with reiserfs. The correct parameters with the default
SuSE kernel is
mkreiserfs /dev/dasdx1:)
FYI
-mkreiserfs, 2001-
reiserfsprogs 3.x.0k-pre8
12799k will be used
Recently, I asked if anyone had any good values for BDFLUSH. The reason I as
is that the default values that come with SuSE appear to be patently absurd
for large memories.
release%cache dirty%bdflush async
2.4.7 30 60
2.4.17 40 60
As I understand it,
I would like to change certain system values at boot. I've put a simple bash
script in /etc/init.d/mytest and linked to it in /etc/init.d/rc3
ln -s ../mytest S99mytest
and I've run
/usr/lib/lsb/install_initd /etc/init.d/mytest
but the oritinal values persist after boot.
The script makes a
When you cat /proc/meminfo, there is a value, Inact_dirty. Even in an
inactivity system immediately after a sync it shows a large value (76MB, for
example). Shouldn't this value be near zero? Inact_clean shows a value of 0.
Shouldn't this value be very large?
Rob wrote:
In particular benchmarks benefit a lot from this ;-)
I only use the benchmarks to try and understand the mechanism. :-)
What we are seeing with large memory is that relatively idle systems
where there is not enough activity to put a load on memory are losing
critical directories.
Ihno wrote:
According to /usr/src/linux/Documentation/devices.txt the numbers from
231
.to 254 are allocatet the following way:
231-239 UNASSIGNED
240-254 LOCAL/EXPERIMENTAL USE
There is a discrepancy between the doc and the code that was
implemented for the dasd driver.
, is that all machines
should look like a PCs rather than Linux being flexible enough to
provide special solutions for special problems.
Enough said.
On Monday, Oct 14, 2002, at 03:06 US/Pacific, Malcolm Beattie wrote:
Jim Sibley writes:
When will SuSE have the devfs as the default for zSeries so we don't
Udo wrote:
so additional major numbers (typically descending from 254) are
allocated
Doesn't this conflict with the tape major numbers? What is their range?
Regards,
Jim
*** grace happens ***
LSB-Certified: http://www.opengroup.org/lsb/cert/register.html
binary compatibility:
http://www-106.ibm.com/developerworks/linux/library/l-lsb.html
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Steve wrote:
Does anyone recall this - or know where I can find the code?
The redbook Linux on IBM eserver zSeries and S/390: Large Scale Linux
Deployment suggests using the external interrupt mechanism. Code is
provided.
I haven't seen this posted on the Marist forum!
http://www.suse.com/us/company/press/press_releases/archive02/sles_8.html
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Scott - no problem in posting. That's why I put it up on linuxvm.org (no
guarantee or warranty)
Mark - I don't fill up my root volume because sometimes a full root can
cause problems. What the script does is write zero blocks until the pack is
full, then removes the file, leaving the compressed
You have a bug in the iplvol.sh script
When the subchannel is returned to the variable subchannel, it should be
translated to upper case as the values in /proc/subchannels are in hex and
upper case.
On my SuSE SLES7 2.4.7 system LPAR, the value returned is 0be7, but the
value in /proc/subchannel
Rather than put kernel patches on SLES7, you probably should install the
Patchlevel 1 fixes for SLES7.
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
I find it amusing that the the Unix purists are defending a 1950's type
line editor (with input and command mod) designed for a teletype keyboard
and paper roll output then converted to the glass teletype equivalent. The
keyboards on teletypes were notoriously slow, heavy to the touch, and the
This thread seems to have drifted off the original topic and is no longer
URGENT!
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Does anyone have LVM running on RedHat 7.1 for 390x or RedHat 7.2 for 390?
They seem to have the lvm beta-.9 drivers, but no commands. When I try and
apply the 1.0.3 or 1.0.7 release of LVM, I get compile errors in the
kernel.
If I use the modules supplied as ./kernel, the errors are for the
How about
cd (to the base directory you're insterested in)
find . -print | grep rpm | less
the find (dot) -print will show everthing in the tree and grep will trim it
for you. And it give all the approximate matches, too.
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
There's lots of info on the IBM starting on www.ibm.com. Here is a redbook
that talks about SAP/DB2 on zSeries for Linux
This IBM Redbook focuses on the implementation of SAP application servers
on Linux for zSeries. It applies to IBM z/OS V1R2 (5694-A01), IBM z/VM V4.2
(5739-A04), SuSE Linux
We've had SLES8 running for several months. I tried various installs and
the one that finally worked for me was ssh/ftp.
As to the VNC install, I can't get it to work with netscape or mozilla on
my 8.1 SuSE workstation! Some nonsense about a java plugin missing, so its
either ssh or use a
For those of us that have to build for both LPAR and VM, you might consider
adding this code to /etc/init.d/boot.local
if [ $(grep -c version = FF /proc/cpuinfo) != 0 ]
then
/sbin/sysctl -w kernel.hz_timer=0
fi
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM
So where is /etc/sysctl.conf documented? I did a grep on the string in the
/usr/src/linux directory and and I found some informaiton on sysctl, bit I
did not find the file (though I did a developer's opinion that one should
read the code to find out how sysctl works!.
So where does one look to
John wrote:
Did you try the man command?
Surprise, surprise!
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Using the vmstat techique that Tom mentions, if you minitor swap bi/bo
fields you can see when you really start swapping. Also, using the free
command, you can see how much of your swap space is used (additional memory
needed?). If free shows that some swap space is in use, but the swap rate
is
Alan, shared tapes may have a problem under VM. I know they do when running
in an LPAR (see the disclaimer on the IBM under restrictions at
http://www10.software.ibm.com/developerworks/opensource/linux390/index.shtml
). The assign/unassign function is not implemented the same way in Linux as
in
File open-to-close doesn't
sound like a very useful paradigm (but I don't know how Linux applications
use tape drives) and I don't know if one part of Linux can open a tape
file (tape management system, just to lock the drive and to request a tape
mount) and another part of Linux subsequently
Paul, have you physically verified that UTSG actually works this way on
s/390 in both LPAR or under VM? Does it apply to ECKD shared tapes, not
dedicated tapes? It the lock a UTSG lock or is it a hardware
assign/unassign. Without the hardware assign/unassign, it is not really
locked from other
I'm sorry - you're right - there is no such thing as ECKD tape. Wrong term
- I hope you can write that off as a senior moment ;) What I meant was
ESCON subchannel tapes.
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
***
Dave wrote:
Methinks the Right Thing To Do would be to add function to mt to allow
it
to reserve a drive (eg, mt reserve /dev/st0) when a application wants
on,
and provide a release function when you're done with it (eg mt release
/dev/st0). That would be generic enough to handle most of the
fsck.ext2: No such device or address while trying to open /dev/VG01/homelv
Long term solution - get off of ext2 as soon as possible and move to ext3
(redhat's preference) or reiser (SuSE's preference). When I converted my
packs to one or the other, this problem virtually disappeared, even in our
PROTECTED]
EDU
06/12/2003 03:26 PM
Please respond to
Linux on 390 Port
On Thu, 12 Jun 2003, Jim Sibley wrote:
File open-to-close doesn't
sound like a very useful paradigm (but I don't know how Linux
the same as TSO. I think that the mt command is
not the right place to do this though.
-Original Message-
From: John Summerfield [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 12, 2003 4:35 PM
To: [EMAIL PROTECTED]
Subject: Re: Linux390 + VM + Tape 3490
On Thu, 12 Jun 2003, Jim Sibley wrote
Alan wrote:
I think everyone has a good understanding of the issues, Jim.
Based on the previous and subsequent posts to this thread after this
statement , based on Boeblingen's design of the tape390 driver, and based
on the restrictions on the Developer works pages for the tape staring, I
think
So what happens when Linux is running in an LPAR or native?
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Ward, Garry
[EMAIL PROTECTED]To:
sysctl sounds like a good approach. It gets around the problem I mentioned
above correlating the OS device address with the device node. And it only
has to be used on tape drives that require the assign/unassign.
Whatever mechanism is used, it must prevent real I/O
(read/write/rewind/woef) to
Sebastion suggested:
Just a quick query, would the benchmarks at:
http://www.tux.org/~mayer/linux/bmark.html
be of any use for a Linux/390 system? Are there any other benchmarks which
could be used to provide comparable results between an Intel (at least not
Linux/390) based system and a
tom wrote:
We're in the process of upgrading our tape storage (many 3480's, I
know, don't laugh too hard) along with a mainframe upgrade (9672-r26 to
2066-0a2). IBM has put together a VTS/ATL solution, STK's first proposal
was a VSM/SILO which was vastly more expensive then the VTS/ATL.
like to move our existing file/print servers to...
-Original Message-
From: Jim Sibley [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 17, 2003 8:47 AM
To: [EMAIL PROTECTED]
Subject: VTS/ATL Performance
tom wrote:
We're in the process of upgrading our tape storage (many 3480's, I
know
I've noticed an acceleration of information about Linux on zSeries being
available in the last 6 months to a year. Its taken off beyond just us OS
folks, now. (This is not a marketing pitch - I assume we're all Linux OS
hands on a zSeries; you're already have Linux or are interested in getting
it
The SuSE SP2 maintenance CD is just out for SLES8. It looks like the cycle
is 6 months, not quarterly. The pattern so far from SuSE seems to be
SLES7 - nov
SP1 - may
SLES8 - nov
SP2 - jun (seems a bit late)
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021,
My DASD is a Hitachi 9980V running in 2105 mode with HPAV enabled.
Linux knows nothing about PAV's of any sort and does NOT support them. A
possible explanation is that the interrupt may be reflected back to the
Linux guest at the wrong address and is being ignored by Linux.
Regards, Jim
Linux
I know there were early SLES8 NFS problems, fixed by subsequent patches.
Try putting on SP2 and see if the problem goes away ;-)
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Besides, many Linux supporters are a bunch of potty-mouthed malcontents
You mean like IBM and HP? And it seems to me, just about everything (not
just computer systems) has it share of potty-mouthed malcontents - rather
a strange premise to support or decry an OS (or anything, for that matter).
Mike, I think you need to address your PAV concerns to [EMAIL PROTECTED]
They're the developers and they say that PAV's are not supported.
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Please respond to
Linux on 390 Port
On Thu, Jun 19, 2003 at 09:40:49AM -0700, Jim Sibley wrote:
With 1 Gig of real memory and 512 MB per guest, you're probably measuring
the VM paging subsystem or some other overhead phenonmena, which is
probably tunable, not the Linux
Running Native is certainly a viable option IF the load on the Linux system
warrants it.
Has anyone tried the model when you have a single Linux with many users
timesharing, rather a lot of single purpose linux images? This would be
like a CMS or TSO environment where you have a lot of shared
Doug wrote:
No, I frequently have days lately longing for a good old solid
360/65 and some nice 2314 and 3330 drives.
But didn't the bell on the console wake you from your reveries all too
often?
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021,
, 23 Jun 2003, Jim Sibley wrote:
Does anyone have a useful Linux running on zSeries that is less that 24MB
with OSA? With LCS? It looks like OSA is a good chunk of code.
I put together a SuSE SLES8 SP2 mimum system (no graphics) and played a
bit
with memory size. I manipulated mem=??m in /etc
In the thread on minimum memory size, a couple responders made comments
like:
kreiserfsd
No Reiserfs? don't need it.
From experience, this is an ill conceived statement. For data integrity,
you need a logged file system in case of system failure (kernel panics,
stupid users, whatever) - ext3 or
Back in the early, early days, we successfully IPLed 2.2.? on
PenguinVM in 10MB.
We didn't notice until we started investigating why it was running so
slw.
I did get the SuSE SLES 8, SP2 up at 12MB - Linux saw 8424 KB, so about 4M
was LPAR overhead. And yes, it was slow during boot and
You might try turning off the DB2 agent. It looks like that is what the
OOM killer is trying to do.
The OOM killer is not very good at killing things, imho. It attacks the
processes with the most cpu+memory. After awhile, it will attach critical
system functions. (We found that out with a
To clarify some points.
In the 12M lpar, linux saw 8424 KB, the 12M EC saw 68 KB less (8356 kb).
The 68 KB difference was a constant difference in all experiments - this is
probably VM control blocks local to the EC.
The experiment was run in increments of 4M LPAR and EC size. The memory was
What are the tools available to monitor Linux? Is there anything beyond
home grown scripts that are accurate enough to do performance measurement
of CPU/Memory/IO - especially I/O?
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL
If you don't have any 64 bit apps, then there is no point in using 64 bit
(some of the 64 bit instructions are quite a bit slower than their 31/32
bit counterparts).
However, some apps now are being written assuming 64 bit. You can develop
them in 64bit on in an guest environment, but to get
07/14/2003 09:38
AM
Please respond to
Linux on 390 Port
On Monday, 07/14/2003 at 09:14 MST, Jim Sibley/San Jose/[EMAIL PROTECTED] wrote:
However, some apps now are being written assuming 64 bit. You can
develop
V=R - then why run under VM at all? As an old MVS production hand, I have
to at least smirk at that ;) Why not VM for those things appropriate to VM
and an LPAR or LPARs where appropriate, talking back and forth using
hipersockets?
One of the configurations I see tried more and more often is a VM
I'm running some boot timings for multiple linux under vm. Is there a neat
why to notify either vm or another linux machine that TCP/IP or a certain
application has been started so I can get elapsed times?
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021,
?
[EMAIL PROTECTED]
IST.EDU
07/14/2003 01:26
PM
Please respond to
Linux on 390 Port
Jim Sibley wrote:
Alan, I would assume that if you need that 64 bit addressing (not 64
I did some playing with 64bit since this issue was first raised. Putting
aside the usual religious comments about VM vs not VM, it seems to me there
may be some interesting uses for 64 bit in LPAR mode, even if the apps are
31 bit.
1) Since Linux caches files heavily, any 31 bit app that is high
The external interrupt mentioned in the redbook SG246824 works well. You
enter the interrupt in a REXX exec from operator and it will issue the bash
script you want. The example for iniittab shows /sbin/shutdown -h now. I
use /sbin/halt as its a bit cleaner.
The additional materials tar file can
]
IST.EDU
07/17/2003 12:18
PM
Please respond to
Linux on 390 Port
On Thu, 2003-07-17 at 13:38, Jim Sibley wrote:
The additional materials tar file can be found at:
ftp
Unabashed Plug: There will be an experienced DB2 zSeries person from IBM
and a DB2 on zSeries live demonstration (at least one can hope) at the IBM
booth at Linuxworld in SF if you happen to be going. It will be on SuSE 8,
SP2 level kernel (2.4.19-4SuSE), 31bit.
Regards, Jim
Linux S/390-zSeries
Perhaps they've finally figured out that running WebSphere (at least
multiple instances of it) on a mainframe is not a very good performer. The
old defamatory SHARE badges of TSO on MVS come to mind (a pig on the back
of
a turtle or something like that). Even IBM's WebSphere people state in
Has anyone been able to run SLES8 64 bits with more than 2GB of storage ?
It works for me when the storage is 2GB or less but with more, it crashes
during the boot.
We're running 3 instances of 64 bit SLES8 (SP2 level) with 3-5 GB of
memory. We were also running an instance of SLES8. We have
I own copyright over code that 95% of the Windows code out there
infringes on. I refuse to show it to you or anyone, because it's a
trade secret. But I demand that each and every one of you who have ever
so much as *seen* a computer running Windows immediately pay me $1000.
PER COMPUTER. Or
I own copyright over code that 95% of the Windows code out there
infringes on. I refuse to show it to you or anyone, because it's a
trade secret. But I demand that each and every one of you who have ever
so much as *seen* a computer running Windows immediately pay me $1000.
PER COMPUTER. Or
, Luke. Obi-Wan Kenobi
(This company dedicates this E-Mail to General Obi-Wan Kenobi )
(This company dedicates this E-Mail to Master Yoda )
-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf
Of
Jim Sibley
Sent: Thursday, July 24, 2003 2:00 PM
To: [EMAIL
email.
So, I will keep my personal opinions and experience in
this new ID. That will saves lines of disclaimer, if
nothing else!
=
Jim Sibley
*** Grace Happens ***
__
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design software
http
There's always this sign from New Zealand
http://www.planetware.com/photos/NZ/NZ272.HTM
=
Jim Sibley
Implementor of Linux on zSeries (LPARs/VM)
*** Grace Happens ***
__
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design software
http
++, and what do you
get?
Even if its free, should be still be programming as if
we were on a pdp 4?
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
__
Do you Yahoo
EXT2-fs warning: mounting unchecked fs, running
e2fsck is recommended
/dev/vg1/lv6 on /tmp type ext2 (rw)
Have you checked fstab? Something is expecting ext2.
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo
capacity.
We have a lot of people testing with up to 128 volumes
in a LPAR and I was wondering what impact one would expect.
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
the
number of required images by consolidating their
functions and remove the TCP/IP communications between
applications?
Isn't this the next logical step?
(On the backend, database side, one or a few large DB
servers seem to be able to handle the actual DB workload).
=
Jim Sibley
Implementor
I'll be at the IBM booth helping anawer zSeries
questions next week (Tuesday and Wednesday).
Who all will be there?
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
-user model, when the user really does
wake up, he has access to multiple gigahertz
processors.
And those 300 small machines would probably only
access 9 TB of data cut up into 30GB pieces.
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They
- the manhours
doesn't come out of its budget!
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
__
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design
that insist on using CTC.
(Or if all yours apps are on one machine, you don't
need TCP/IP at all ;-) )
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
__
Do you Yahoo
use db2_install instead of db2setup. if you specify
db2.ese, everything will be installed.
=
Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
__
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Since Linux formats 4096 byte blocks on a track you
can only get 12 such blocks on a track, the useable
space on a track is 4096x12=49152 (48K) or 737280
bytes or 720mb/ cylinder.
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Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only
space and one directory
using 92%. And the software install wizards of the
major distributors follow the POSIX rules...
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Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
is
Oracle on Sun?
Anyone using Linux for a database server?
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Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can only give answers. Pablo Picasso
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HAHAHAHA. There's not much you can do with 8 bytes.
You meant 8 BITS, didn't you? Sure, there was a lot of
stuff we had to stuff into 8 bits! Additional bytes
were a luxury... ;-)
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Jim Sibley
Implementor of Linux on zSeries in the beautiful Silicon Valley
Computer are useless.They can
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