I wasn't 100% correct. We do have an Exchange 2007 server that is
not a CCR cluster - someone requested an Exchange 2007 server as a
sandbox for developers, so we installed a regular Mailbox/CAS one on
a VMWare virtual machine.

It does have a PF store.

--- In Exchange2000@yahoogroups.com, "Andrey Fyodorov"
<afyodoro@...> wrote:
>
> We don't have any PF stores on Exchange 2007 servers. All our
> Exchange 2007 mailbox servers are CCRs.
>
> I think this has something to do with referrals, but I can't put
my
> finger on it. Plus - why would there need to be a referral when
> there is a local replica?
>
> I cranked up PF store diagnostic logging on the victim of the
swarm
> and saw that a lot of the clients were connecting to the Free/Busy
> and OAB PFs.
>
> All Mailbox stores (both Ex2003 and Ex2007) are respectively
> pointing to the local PF stores on Exchange 2003.
>
> We have 30 Exchange 2003 servers in various locations (Miami, NYC,
> SanFran, Toronto, Amsterdam, Dublin, Geneva, Zurich, Sydney,
Nassau,
> Curacao, etc).
> We started deploying Exchange 2007 CCRs a few months ago and now
> have them in NYC, Toronto, Geneva, Curacao, Singapore.
>
>
>
>
> --- In Exchange2000@yahoogroups.com, James Chong <jchong1@> wrote:
> >
> > If you had public folder stores on your Exchange 2007; it would
> make probably explain issue as you can run into PF referal issues
as
> 2003 uses routing groups to determine PF referals while 2007 no
> longer uses RG info. How long has this gone on etc prior to your
> migration or during the course? How did you determine that it's
your
> FB and OAB?
> >
> > 1. You are sure no replicas exist on your 2007 servers?
> > 2. What part of your environment is still 2003? Public folder
> servers and...
> > 3. All your 2003 and 2007 mb stores are pointing to Exchange
2003
> PF stores?
> >
> > How public folder referrals have changed in Exchange 2007
> > http://msexchangeteam.com/archive/2007/03/15/437075.aspx
> >
> >
> > James
> >
> >
> > ----- Original Message -----
> > From: Andrey Fyodorov
> > To: Exchange2000@yahoogroups.com
> > Sent: Saturday, November 22, 2008 11:03 PM
> > Subject: [Exchange2000] Clients from all over the world
converge
> on a wrong PF store
> >
> >
> > We have been observing some strange behavior recently with our
> clients
> > accessing PF stores.
> >
> > We have a mixed Exchange 2003/Exchange 2007 environment right
> now with
> > Exchange servers in various geographical locations.
> >
> > There are no PF stores on Exchange 2007.
> >
> > There are Riverbed Steelheads optimizing WAN traffic between
> locations.
> >
> > We have been receiving calls from our WAN engineers
> saying "there are
> > a ton of RPC connections from all over the world connecting on
> port
> > 58599 to the Exchange server in Geneva". Then the next
> day ""there are
> > a ton of RPC connections from all over the world connecting on
> port
> > 1200 to the Exchange server in Zurich". Etc.
> >
> > These client connections eat up all their Steelhead sessions
and
> ruin
> > optimization.
> >
> > When we examine the connections, it turns out that there are a
> bunch
> > of logons on the "victim" Exchange server's PF store from
> clients all
> > over the world - NYC, Amsterdam, Dublin, Sydney, Miami, etc.
> >
> > It seems that they are all connecting to the "victim" Exchange
> server
> > for OAB downloads or Free/Busy. There is really no other PF
> replicas
> > for example on a Zurich Exchange server that the clients from
> Miami
> > may be possibly connecting to.
> >
> > But why aren't they connecting to the OAB or Free/Busy
replicas
> right
> > on their own Miami Exchange server?
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>