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IDS Forum

Re: IDS 940 64-Bit / 32-Bit conversion question

Posted By: elena.nemtisor
Date: Thursday, 8 May 2008, at 6:56 a.m.

In Response To: Re: IDS 940 64-Bit / 32-Bit conversion question (Art Kagel)

Thank you Art, thank you David too for yours answers.
I came back with a new questions on the same subject.

It is not a 'downgrade to 32bit' : I need for 32bit for short time and
after I will finish I want to come back on 64bit.
In fact I need to restore a database from production into a test server.
In production server I have an IDS 940 UC2.
On the test server I have an IDS 940 FC7 (with SOLARIS 10). Due to a
lack of machines I have to restore the server backup in 32bit format
over a server in 64bit. For the 32bit version I have not disk space to
make its own server configuration . I want to use the same disk spaces
as were used for 64bit server.

Now I have installed the IDS 940 UC2 into a different directory than
it was used for IDS 940 FC7.
I have configured the new environment (INFORMIXDIR, ONCONFIG, SQLHOSTS)
for 32bit
and I'm able to start the 32bit server. My server in 32bit it is ONLINE
but_ I think that the conversion does not complete._
In the online.log file I did not found any conversion errors , even the
message like 'Conversion completed successfully' it is not present there.
I performed the oncheck commands as are detailed into the doc (Migrating
to Dynamic Server 9.40 or 9.30 from 9.x, 7.3x, or 7.24) and no errors
were reported there.
When I try to make the L0 backup of the 32bit server it does not work:
- if the server it is ONLINE and I start the "ontape -s -L 0" - the
server crashes and I receive the error:
/"Archive failed - buc_fe.c : Archive API processing failed at line 236
for msgtype"

/- if the server it is OFFLINE and I start the "ontape -s -L 0" - the
backup stops and I receive the error:
/"Server is in an incompatible state or user authentication failed."

/Please let me know what I did wrong.

For me now this backup L0 it is not important because I do not need for
it. I need to restore over it a different backup in 32bit format.
Later, when I will finish with it I want to restore over it the backup
of 64bit server ( I made it before stating the server conversion) and I
want to start the
64bit server. It will work?

Thank you for your help,
Elena

Art Kagel wrote:
> elena.nemtisor wrote:
>
> Hello All,
> I have a question concerning an IDS server conversion between 64-bit and
> 32-bit: Now I have installed an IDS 9.40 FC7 on a SOLARIS 10 box and it is
> working fine.
> I want to install an IDS 9.40 32-Bit on the same machine and I want to keep
> the existing server configuration (chucks, dbspaces, databases...). So I
> want to convert my server from 64-Bit to 32-Bit. My question is the
> following: is it possible to perform this conversion directly : 64-Bit <-->
> 32-Bit or I have to perform the following way: 1) **IDS 9.40 64-Bit** -->
> IDS 9.3 (32-Bit or 64-Bit) 2) IDS 9.3 (32-Bit or 64-Bit) --> *IDS 9.40
> 32-Bit
>
> You can do that. Assuming you want to eventually go back to 64bit, install
> the 32bit server in a separate directory (ie different INFORMIXDIR) and copy
> the sqlhosts and ONCONFIG file from the 64bit $INFORMIXDIR/etc to the 32bit
> one. Shutdown the 64bit engine and bring up the 32bit engine. Done.
>
> BTW, why downgrade to 32bit? The 64bit instance should be performing a bit
> faster than 32bit was, and you have more flexibility for tuning - larger
> buffer cache, etc.
>
>

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