Hi Stephanie,
What you are seeing is correct, it obviously just hasn’t been explained to you correctly. The Engineer should have whiteboarded this for you.
Each zone can only have ONE Data Collector at any one time. You have a “Primary”, which will always be the server set to “Most Preferred”, and you have a Backup, which is set to “Preferred”. The backup will take over when the Primary fails, is taken off-line, etc. I personally always set the remainder of farm member servers to “Not Preferred” to ensure they never take part in any zone elections. Others will leave them set to “Default”, just in case.
If you go to the command line on any server, type “qfarm”. This will list all servers in the farm. The ones with the D after their IP Address will be the active Data Collectors for those zones. So in your case you will see two.
By the way, it is not a requirement to run the Access Management Console or Presentation Server Console (AKA CMC) from the Data Collector. Any farm server will do, and if your zone is working correctly, the information returned will be consistent no matter which server you connect to.
I hope that explains it.
Cheers,
Jeremy.
From: thin-bounce@freelists.org [mailto:thin-bounce@freelists.org] On Behalf Of Stephanie Atkinson
Sent: Wednesday, December 03, 2008 9:58 AM
To: thin@freelists.org
Subject: [THIN] Dual ZDCs?
How is it that a Zone can have 2 operating Data Collectors? Of everything I have read, each zone can only have one so maybe I misunderstand what is going on. The Citrix Engineer who setup this environment advised we have data collection on 2 servers because 1 is set to Most Preferred and the other Preferred. All other servers are left to default. We have 2 dedicated servers for each zone intended to be data collectors and by all accounts that is how they are working. All the information from every server in the zone is available from both servers in the CMC; all other servers only provide their local information.
Can anyone clarify or explain this?
Thanks,
Stephanie Atkinson
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