I am using 7.31UC7 at the moment. We are moving to another machine, so my
plan of action is:
1. Install Solaris 8 on the new server
2. Install IDS 7.31UC7 on the server (have already tested it this way)
3. Do a backup on the old server and restore on the new server
4. Do an in place upgrade from 32bit to 64bit by bringing the engine down,
installing 7.31FD3 and bringing the engine up again.
This is everything in a nutshell - I won't go into detail of setting up the
disk arrays on the new server, etc.
Just take note that you can't backup on 32bit and restore on 64bit. It is
not supported by Informix, and I've also tried it before - and actually
received a message in the line of "Invalid version ......"
If your database is small, and you want to reorganise your database and fix
extent sizes, a dbexport/dbimport is a good idea, but will be more work for
If you do it the way I'm going to, just make sure you test it properly.
There are a couple of bugs that can occur when upgrading from 32bit to
64bit, so don't just assume it will work. Rather be safe.
Sent: 05 July 2002 04:31
Subject: ??: 32 bit vs. 64 bit Informix
Can you tell me which version of 32bit informix is ? is 7.31UC2A?,
and another question is :
What's the detail steps of upgrading? because i have the same
problem and i plan to use "dbexport" to export data and then import them,
but, in this case, customer doesn't want to stop the online system, so can i
use "ontape" to backup 32bit informix and restore it into 64bit informix( on
another machine)? if not, is there any other online backup method which can
be used to move data between 32bit informix and 64bit informix?
???: 2002?7??4? 20:52
?a: RE: 32 bit vs. 64 bit Informix
I can only tell you that we are currently running 32bit Informix on a
Solaris 64bit platform, without any problems. We've been running like this
for quite a while - I've been with the company about 6 months now.
We will be upgrading to 64bit Informix at the end of next week though. But
so far we've not had any problems regarding the 32bit / 64bit issue.
Sent: 04 July 2002 00:28
Subject: RE: 32 bit vs. 64 bit Informix
Most of our clients run 32 bit informix on a 64 bit OS - Solaris 2.8 and
AIX. If you dont need to run 64 bit informix than stay with 32 bit. If you
do upgrade informix be aware that most things in the engine wilol want more
memory since all the structures are now bigger.
If you are using 4GL for your application and running on the same server
(like many of our clients), then to use shared memory connection both must
be either 32 bit or 64 bit - and it is not relevant as to whether the OS is
Behalf Of Thomas Shannon
Sent: Thursday, 4 July 2002 6:34 a.m.
Subject: 32 bit vs. 64 bit Informix
I have seen several threads discussing the impact of having 32 bit Informix
on a 64 bit OS. This is currently being considered in our shop, don't ask
why, so I'm trying to get my facts together for a rebuttal, if necessary.
The informix version is 184.108.40.206 while the OS is Solaris 8. Several of the
threads indicated that there could be problems with using shared memory, but
none of them elaborated. There were also several who had been running under
this scenario with no problems, most were Informix v7. Any information
would be greatly appreciated.