[cisco-voip] Call Manager Upgrade from 4.1.3 to 6

[steve.siltman at assurant.com]

Hi All,

I found a document a couple of months ago that told how an upgrade should 
be performed depending on the size of the cluster and how many devices.  I 
thought it said something about doing it in phases. I'm unable to find 
this document again.  I don't see this mentioned in the upgrade and 
release documents on the Cisco website.  Did I dream about this?   We have 
two seperate clusters.  One of them has about 30 devices and 1 remote 
site.  I upgraded the pub and sub in about 5 hours time.  All went great. 
We are now planning to do the larger cluster with 800 devices.   I could 
use that document again.

One more question.

Can the DMA tool be started while calls are still being processed?

Thanks,

Steve Siltman
Assurant Corporate Technology
Network Engineer - Cisco CCVP
Work: 651-361-4752
Cell: 651-336-5563
steve.siltman at assurant.com
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Thank you.
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