473,320 Members | 1,838 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,320 software developers and data experts.

Concurrent I/O on Aix: When?

Anybody know when DB2 is going to support Concurrent I/O on Aix... I
heard it was coming but I don't know when?

Thanks
Scott
Nov 12 '05 #1
2 4211
Ian
sp******@yahoo.com wrote:
Anybody know when DB2 is going to support Concurrent I/O on Aix... I
heard it was coming but I don't know when?


It's definitely there in Stinger -- where you can create/alter
tablespaces and add a keyword 'no filesystem caching' to bypass
the filesystem cache.

I think that if you mount the filesystem with concurrent IO
enabled (i.e. mount -o cio /yourfs) DB2 will still work fine, but
I'm not 100% on that.


-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----
Nov 12 '05 #2
Well I know that currently there is regsitry variable that supports
direct IO on AIX and is a supported configuration by db2 support. My
question about the file system no cache tablespace option would be on
AIX does that mean DB2 is going to use DIRECT I/O or Concurrent
I/O(which is DIRECT I/O w shared read locks).

Also does anyone know if I mount my filesystems with Concurrent I/O
options is that currently a supported configuration on AIX for db2? I
will probably have to call but if any one knows that would be great...

Thanks,
Scott
Ian <ia*****@mobileaudio.com> wrote in message news:<41**********@corp.newsgroups.com>...
sp******@yahoo.com wrote:
Anybody know when DB2 is going to support Concurrent I/O on Aix... I
heard it was coming but I don't know when?


It's definitely there in Stinger -- where you can create/alter
tablespaces and add a keyword 'no filesystem caching' to bypass
the filesystem cache.

I think that if you mount the filesystem with concurrent IO
enabled (i.e. mount -o cio /yourfs) DB2 will still work fine, but
I'm not 100% on that.


-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

Nov 12 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
by: Gardner Pomper | last post by:
Hi, I am pretty new to python, so be gentle :) I have a python script that spawns a number of threads (configurable) on a 12 processor AIX RISC-6000 machine. It works fine, so long as I am...
12
by: Jean-Marc Blaise | last post by:
Dear all, Can we use the FP4a 32 bit version for Aix 4.3.3 on an AIX 5 32 bit system ? The pb is the size of AIX5 FP4a exceeds now the size of a normal cdrom: AIX5 FP3: 665 Mo FP4a: 710 Mo...
4
by: Demetris | last post by:
Hello! He have an AIX box with Version 4.3.3 and DB2 V7.2 FP6. We need to upgrade the AIX to 5.1. Does DB2 need to be reinstalled. Are there DB2 installation images specifically for AIX 5.1....
4
by: Yasaswi Pulavarti | last post by:
On an AIX server, I used the db2install script from the command line to install the DB2 UDB 8.1 client. I applied the fix pak 7 to it. Now I need to use the client to test connections to another...
6
by: chrisg | last post by:
I have installed (what I thought was) DB2 7.2 FP5 (as my starting point, it was 7.2 with FP5 applied) on my AIX 4.3.3 boxes. This is what I get. # lslpp -L | grep db2 db2_07_01.cj ...
5
by: sethwai | last post by:
Hi, I've read everything I can get my hands on and am still very confused about the similarities and differences between db2_mmap_read/write and concurrent i/o. It seems to me at this point...
6
by: Troels Arvin | last post by:
Hello, Running DB2 on AIX. I've read http://www-128.ibm.com/developerworks/db2/library/techarticle/dm-0408lee/ DMS tablespaces on concurrent I/O file systems (with the AUTORESIZE YES...
9
by: Randy.Galbraith | last post by:
I'm investigating the possible use of Mecurial SCM as a replacement for CVS. Mecurial is written in Python. I have a background in GNU/ Linux, Solaris, sparc and Perl. However AIX, powerpc and...
0
amitpatel66
by: amitpatel66 | last post by:
There is always a requirement that in Oracle Applications, the Concurrent Program need to be execute programatically based on certain conditions/validations: Concurrent programs can be executed...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
0
by: ryjfgjl | last post by:
ExcelToDatabase: batch import excel into database automatically...
1
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
0
by: jfyes | last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
0
by: ArrayDB | last post by:
The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
0
by: Defcon1945 | last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
0
by: Shællîpôpï 09 | last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.