Manually Migrating from VMware vCenter 4.0 to 4.1

Well, the case is as follow:

Old vCenter server is Windows 2003 32-bit, with SQL 2005 Standard, and VMware vCenter 4.0

New vCenter server is Windows 2008 R2 64-bit, with SQL 2008 Standard, and VMware vCenter 4.1

Both are kept running, so they have different server names, and IP addresses. Which means there are NOTHING common between the two systems, but the client still want to migrate the configuration so they don’t have to re-configure everything on the new environment.

Ok, after reading too many documents and websites and other people experiences, it turned out very simple process.

On old server:

1. Stop the VMware vCenter services.

2. Backup the database using the Management Studio (make full backup)

On the new server:

1. Install SQL server (if you’ll have on the same server) and configure it for both Windows and SQL authentication

2. Create the database “VMware vCenter” (just like the old server database name)

3. Create vmware SQL user, and grant it dbo on the database created in step 2

4. Create the System DSN (64-bit) and make sure to use the account created in step 3

5. Import the backed up database from the old server, then fix the permissions on it

6. Start the vCenter setup and during the setup it will discover the exiting database, and give you an option to upgrade it (it’s version 4.0 after all)

It will take a while, the database can be easily more than 1.5GB, so don’t worry about that.

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