Might have been from Andrew Bulloch -
http://dbasushi.com/one-em-to-rule-them-all
If the latency isn’t bad, one EM should be sufficient. There’s a lot of if’s…
Oracle Cloud has several, but we’re talking millions of targets there.
Most customers can run sufficiently on 1 EM environment. There’s a lot of
downsides to splitting by region/other, as there’s no central place.
From: John Thomas [mailto:jt2354@xxxxxxxxx]
Sent: Thursday, October 22, 2015 11:33 AM
To: patrice.boivin@xxxxxxxxx; ORACLE-L
Subject: Re: distributed EM12c
Saw a presentation at OUG Scotland a few months ago that described a project
for Telefonica/O2 to set up multi OMS environment with RAC and a standby
cluster and OMS... you could try the UKOUG for contact information.
Regards
John T
On Thu, 22 Oct 2015 12:49 Patrice sur GMail <HYPERLINK
"mailto:patrice.boivin@xxxxxxxxx"patrice.boivin@xxxxxxxxx> wrote:
We have sites across Canada, it would be nice if we could have multiple OMS
hosts in different geographic locations sharing the same infrastructure.
Network lag is an annoyance at best.
i.e. having multiple OMS hosts taking connections from DBAs in different
geographical locations but which share information as if everyone was
connecting to the same EM12c instance.
I wonder sometimes how Oracle does it, do they have only one EM12c instance for
all their data centre sites, or do they have multiple EM12c installations per
data centre or per bureaucratic section inside their company.
-- Patrice
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