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

Thu Aug 13 09:17:41 EDT 2009

I would do a full DMA Export than test restore in VMWare/lab to see how long, etc.

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Cristobal Priego
Sent: Thursday, August 13, 2009 2:02 AM
To: Lelio Fulgenzi
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Migrating from CM 4.1.3 to Cisco BE 7.0

I think is going to take like 10 hours

I just upgraded a cluster today and they had 72 phones and it took 2 hours to complete the Dma backup

Sent from my iPhone

On Aug 12, 2009, at 7:13 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

	Thanks Wes. How long does the process take to run? 1 hr? 4 hr? We have about 7500 end devices.

	---
	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: "Lelio Fulgenzi" <lelio at uoguelph.ca>
	Cc: "Justin Steinberg" <jsteinberg at gmail.com>, cisco-voip at puck.nether.net
	Sent: Wednesday, August 12, 2009 9:20:58 PM GMT -05:00 US/Canada Eastern
	Subject: Re: [cisco-voip] Migrating from CM 4.1.3 to Cisco BE 7.0

	Technically yes, but it's not really recommended. It generates significant database activity, consumes some CPU, and generates reasonable disk i/o.  It is MUCH less intrusive if you exclude CDR's.  It only runs on the publisher so if you don't have phones registered to ccm.exe on the pub you can run most any time.

	Note there have been a few impactful issues with previous versions of DMA, CSCsz63731 comes to mind.  This would clearly impact a production environment.

	/Wes

	On Wednesday, August 12, 2009 8:20:25 PM , Lelio Fulgenzi < <mailto:lelio at uoguelph.ca> lelio at uoguelph.ca> wrote:

	Can you run the DMA process itself during business hours?

	---
	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: "Justin Steinberg" < <mailto:jsteinberg at gmail.com> jsteinberg at gmail.com>
	To: "Lelio Fulgenzi" < <mailto:lelio at uoguelph.ca> lelio at uoguelph.ca>
	Cc: "Wes Sisk" < <mailto:wsisk at cisco.com> wsisk at cisco.com>, cisco-voip at puck.nether.net
	Sent: Wednesday, August 12, 2009 6:56:08 PM GMT -05:00 US/Canada Eastern
	Subject: Re: [cisco-voip] Migrating from CM 4.1.3 to Cisco BE 7.0

	Keep in mind Wes always sees the problem childs... :)

	I've done many 4.1 to appliance upgrades including some with AD integration and have never had any significant problems.  I've had to deal with some DMA warnings but I can usually work them out.

	That being said, I would definitely run DMA well in advance of your upgrade to make sure it is completing successfully prior to your upgrade window.  You can then rerun DMA during your upgrade window to get a new current copy of the 4.1 DB and use that for your upgrade.

	BAT can export some phone data, but you'll lose things like ccmuser speed dials, pab/fd, etc - one of the reasons I always try to use DMA.

	On Wed, Aug 12, 2009 at 12:04 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

	thanks Wes.

	i think we'll start DMA sooner rather than later. 

	---
	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: "Lelio Fulgenzi" <lelio at uoguelph.ca>
	Cc: cisco-voip at puck.nether.net, "Mike O" <mikeeo at msn.com>
	Sent: Wednesday, August 12, 2009 10:04:48 AM GMT -05:00 US/Canada Eastern
	Subject: Re: [cisco-voip] Migrating from CM 4.1.3 to Cisco BE 7.0

	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 < <mailto:lelio at uoguelph.ca> 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" < <mailto:wsisk at cisco.com> wsisk at cisco.com>
	To: "Mike O" < <mailto:mikeeo at msn.com> 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 < <mailto:mikeeo at msn.com> 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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