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IDS Forum

Re: Migrate 11.7 Informix database to an other ser

Posted By: Madison Pruet
Date: Friday, 11 December 2015, at 6:51 p.m.

In Response To: Re: Migrate 11.7 Informix database to an other ser (CHALLENGER212 ABDERRAFI)

The problem that you will run into is that if the source instance is not completely quiescent AND a successful checkpoint has not been done while quiescent AND only then the database chunks are copied AND the database is not active during this time.....Then it is possible that not all of the current pages are physically on disk. If all of the pages are not physically on disk when you perform the copy, then you will have problems when trying to bring up the target system. Some of those problems might occur during the start-up of the server, but some might not occur for some time after you started the instance.

What you are proposing is rather risky. It would be much better to purchase enough additional storage devices to handle a backup and then restore on the new system.
Madison Pruet
Retired from IBM

On Friday, December 11, 2015 3:41 PM, CHALLENGER212 ABDERRAFI <abderrafi212@gmail.com> wrote:

Hi, My database is nologing mode, I have shut down Informix on the first
server and I'm trying this copy now to the second server in wich I have the
same informix strutcure,you think this wil not work.
I want no connexion between the two servers, just a copy of the fiorst.
I have no space to do ontape , and rsh on widnows is not working, so only I
want to make such as a clone by copiyng all chunks to the second server, you
think this will not work ??

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