Re: OT ACS 5.2

Hello Marc

From the official user guide:

"In general, you make configuration changes on the primary server only, and
the changes are propagated to all secondary servers, which can then view
the configuration data as read-only data. A small number of configuration
changes can be performed on a secondary server, including configuration of
the server certificate, and these changes remain local to the server.

There is no communication between the secondary servers. Communication
happens only between the primary server and the secondary servers. The
secondary servers do not know the status of the other secondaries in their
deployment."

"*There can be one server only that is functioning as the primary server.
However, you can promote a secondary server so that is assumes the primary
role for all servers in the deployment*. The promotion operation is
performed either on the secondary server that is to assume the primary role
or on the primary server.

Note: When the primary server is down, do not simultaneously promote two
secondary servers."
"Under normal circumstances, each configuration change is propagated to all
secondary instances. Unlike ACS 4.x where full replication was performed,
in ACS 5.2, only the specific changes are propagated. As configuration
changes are performed, the administrator can monitor (on the Distributed
System Management page) the status of the replication and the last
replication ID to ensure the secondary server is up to date. "

Regards

Farrukh

On Fri, Jan 20, 2012 at 9:10 PM, marc edwards <renorider_at_gmail.com> wrote:

> This seems to be the hottest off topic going! I know that previously
> somebody was directed towards TAC for a more involved issue... I hope an
> ACS master ( I am sure there are many on this list) can help provide
> information before bothering a busy TAC engineer.
>
> I am looking for information about the replication process. Currently, I
> have a primary set up and 4 secondaries. I notice on the primary there is
> an option to promote a secondary. Will this allow two primaries that I
> can access to do updates or will it demote the existing primary?
>
> If the single primary ever has a failure, is there an auto promotion of a
> secondary?... I am not sure how I could promote a secondary as the option
> is not available on secondary (again in the case of a primary failure).
>
> Thanks in advance for your help,
>
> Marc
>
>
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Received on Sat Jan 21 2012 - 15:34:03 ART