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Jerome

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Reply with quote  #16 
Agreed. We have one customer only selectively migrating process. Generally they will either lapse or be rewritten in version 9 when new functionality is wanted.

Others are just going to migrate everything, but typically in one go.

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KarlD

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Reply with quote  #17 
Have been working on File and Repository migrations from 7.6 to 9.1 and the Repository migrations have been the most challenging. It can take a long time to process the data even on a modest data set and both the source and target engines are shut down for the duration.

A 'big bang' approach with a large data set might not be practical in some cases.

My advice would be to carry out some sample repository migrations to get some idea of the time required before going too far down the path. This will also give you the skills to identify the issues as they arrise and the logs are typical Metastorm.
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Jerome

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Reply with quote  #18 
We have formulated a two-step approach. All the code is migrated, and the data is then moved and tested. This can take any amount of time, and the only requirement is a code-freeze.

Once done and fully tested, the documented steps, and there will be a great many in our experience, are executed to a strict schedule. This can be done overnight, or on a weekend. In some instances where we have a lot of data, we may go for a three-day rollout. It also depends on the availability of the infrastructure and support for same, as that needs to be fully synced.

Trying to do any migration in one step without being fully tested beforehand will never end well, except for the simplest of processes.

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powerplay

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Reply with quote  #19 
Hi Jerome,

I am planning to upgrade existing MS 7.5 to V9.X(preferrably 9.3).

For Processes and Forms migrations, I agree, to start from scratch and deploy in 9.3.
But the existing instances of 7.5 needs to be maintained and used in 9.3 as well.

Can we migrate the 7.5 repository directly to 9.3 repository considering SQL2005 to SQL2012.
Or is there any middle layer needs to be involved like migrating to 7.6 first and then to 9.3..etc..


Thanks in advance!






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Jerome

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Reply with quote  #20 
You have to start with 7.6 and migrate from there. You can just migrate a copy of the database to 7.6, and migrate that, but if you want to run both version side-by-side you will need the old one up to 7.6. If you can run them separately, you can get away with copying the database.
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powerplay

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Reply with quote  #21 
Thanks Jerome, 

Ok, As I understand:
- Migration to 7.6 will be required in any case. From where Migration tool can be used to Migrate the 7.6 db to 9.3 db

I have couple of questions in here (pls accept my apology if the questions sounds silly):
1) How easy can 7.5v be migrated to 7.6v? Can this be acheived just by executing some upgrade scripts?

2) If Migration tool is not prefered, Is it possible to transfer v7.5 process data directly to v9.3 database? Are there any additional scripts that needs to be executed to acheive this?

Kindly help on this.

Thanks in advance!


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