[cisco-voip] Migrating from CM 4.1.3 to Cisco BE 7.0

[Wes Sisk]

MANY variables:
how many times upgraded
how many interim versions were run
what native or 3rd party tools attempted to modify the database
who attempted directly editing the database
how many dbl/iis problems have been encountered?  Unfortunately 
transactions were not strictly enforced so when problems occured there 
were partial commits to the database
Is enterprise LDAP integration used?  This is probably the largest 
contributor to errors. When objects move in the enterprise there is no 
change notification to CM (unity tried but CN from AD appears rather 
unreliable) so CM ends up with numerous broken pointers in the database.

The other systemic problem is that 4.x enforced business rules via DBL 
rather than directly in the database.  Think of having a guard in front 
of your storage room, but your storage room has no shelves.  Users must 
verify with the guard but once inside they have free reign and very 
little structure.

/Wes

On Wednesday, August 12, 2009 9:07:05 AM , Lelio Fulgenzi 
<lelio at uoguelph.ca> wrote:
> well, this doesn't sound promising. what kind of garbage exists in 4.x 
> databases?
>
>
>
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> "Bad grammar makes me [sic]" - Tshirt
>
>
> ----- Original Message -----
> From: "Wes Sisk" <wsisk at cisco.com>
> To: "Mike O" <mikeeo at msn.com>
> Cc: cisco-voip at puck.nether.net
> Sent: Wednesday, August 12, 2009 8:49:47 AM GMT -05:00 US/Canada Eastern
> Subject: Re: [cisco-voip] Migrating from CM 4.1.3 to Cisco BE 7.0
>
> imho.  run DMA. it it works for you then that is the shortest path.
> if DMA reports errors that you cannot easily repair then stare and 
> compare.
>
> dma has improved significantly and even better with 7.1.  however, 
> there is so much garbage possible in 4.x databases that the migration 
> tool simply cannot always be accurate.
> /wes
>
> On Tuesday, August 11, 2009 9:12:39 PM , Mike O <mikeeo at msn.com> wrote:
>
>     I have to migrate about 50 users/phone, whats the best way? DMA or
>     start from scratch?
>
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