Unity Failover Standby

Unanswered Question
Sep 28th, 2009

Hello, can anyone help please. I am not sure what the options are for Unity resillience. I have seen failover and standby redundancy options on CCO. What is the difference? Do you have to have an external Exchange server or can it be configured on the local Unity servers alone. I will have 2 servers for Unity and have to provide a resillient system using Unity v7.x. Please advise. Thanks.

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Tray Stoutmeyer Mon, 09/28/2009 - 06:13

Here is the doc for standby and failover for 5.x version. Same applies to 7.x too.

http://www.cisco.com/en/US/docs/voice_ip_comm/unity/5x/design/guide/5xcudg070.html

A simple search on cisco.com for Cisco Unity Standby would get you there. Also, 5.x and up, you can have the Exchange either off box or on the secondary server.

See here:

http://www.cisco.com/en/US/docs/voice_ip_comm/unity/5x/installation/guide/vmexfo/5xcuigvmefo060.html

Again, this is for 5.x but is used for 7.x version as well. Both options are there.

Tray

apanesar Mon, 09/28/2009 - 06:28

Hi Tray, thank you for replying.

Just to clarify: I could install Unity on 2 servers. The secondary server is the one that I would have local Exchange configured on. I could either have them in Failover mode (in same datacentre) where they have real time sync of message store; or i can have them in standby mode (in different datacentres 100Mb WAN) where the sync of messages is done once a night. In both cases I think I need sql2000 on both servers. Does this sound right?? Thanks

apanesar Mon, 09/28/2009 - 07:06

Hi Tray, thank you for replying.

Just to clarify: I could install Unity on 2 servers. The secondary server is the one that I would have local Exchange configured on. I could either have them in Failover mode (in same datacentre) where they have real time sync of message store; or i can have them in standby mode (in different datacentres 100Mb WAN) where the sync of messages is done once a night. In both cases I think I need sql2000 on both servers. Does this sound right?? Thanks

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