[cisco-voip] Question about Unity Connection 8.x cluster - mix different server platforms?

[Jason Aarons (US)]

The concern is what happens in a failover, can a larger server failover to a lower class platform overlay and handle the same load, usually not.  I would keep them same platform overlay.

If you have 10 mailboxes on great big 7945 and you failover to 7825 no worries. But 20,000 mailboxes failing over to 7825 might be a disaster...Same concern with CallManager servers. In CCM you could have a larger server backup two+ smaller servers with oversubscription ratio assuming both wouldn't fail at same time.

http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/supported_platforms/8xcucspl.html#wp658926


From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of David Lee
Sent: Tuesday, March 22, 2011 8:50 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Question about Unity Connection 8.x cluster - mix different server platforms?


Hello,



I understand that for a UCM cluster, you can use different servers (i.e. 7825/7835/7845) in the same cluster.  It is less clear whether you can do that in a Unity Connection cluster.  For example, can I run a Unity Connection 8.x cluster with both a MCS-7835 and MCS-7825 servers as publisher / subscriber?  I understand that the capacity will be based on the smaller server, but I like to know if this is a supported architecture.



Thanks in advance.



-Dave


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