Upgrading vShpere 4.0 to v5.0

I want to upgrade my current v-sphere 4.0 environment to v5.0 I currently have it running on a w2k3 32 bit windows os. Have a total of 7 hosts, DB is SQL 2005 full version.

I have created a new VM with win2k8 64bit in order for me to use as v5.0 doesn't support 32 bit anymore and for this reason I can't do an upgrade.

I want to use SQL 2008 R2 express but I have been told that the upgrade from a full version of sql 2005 to express 2008 is not recommended. For simplicity sake, I'ld like to keep same vc name and IP.

Can you please provide any input? Is this a recommended scenario for me? What are others doing in similar scenarios?

cheto06Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Since vCenter 4.1 has required a 64 bit OS.

See this URL for a Framework and Step by Step Guide

http://www.yellow-bricks.com/2011/07/04/migrating-your-32-bit-vcenter-server-to-64-bit/

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cheto06Author Commented:
Thanks but i was told  i couldn't use the migration tool because it didn't work with sql 2005 full version. Is this the case?

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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, it should work, but only 50% of our clients have managed success using the Data MIgration Tool in the first place.

The question, you must ask yourself, is:-

do you want to keep your existing performance data, logs, events, tasks, resource Pools etc

If not, then start afresh, with a brand new installation.

If you have a very complicated layout, VM folders and permissions etc

You could copy your existing database to a new server of the same name, and then install vCenter 5.0, point to database, and it will prompt to update.
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cheto06Author Commented:
I don't have any resource ppls and complicated stuff just a few groups added for permission access.
I'd like to keep the same name and IP if at all possible.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you want to keep the same name and ip address. The only option is to build a new server, with the same name and IP address.

Remove the ESX hosts from the old vCenter 4.0 server.
Disconnect old vCenter 4.0 server from network.
Add new server with same name and IP address to Domain.
Install vCenter 5.0 with SQL Express.
Add old ESX hosts to vCenter 5.0, re-create layout and groups and permissions.
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