Replicas and distant sites

[pingu]

Hi,

I wonder if anyone could help me to clarify this in my brain…

We have two sites, the main on being London and a smaller office in LA. In London we have our OD master and 2 replicas, in LA we will have 2 replicas. The sites are currently connected by a low-bandwidth VPN link (~1Mbps) shortly to be upgraded to a 3-5Mb MPLS connection. In times gone past (when we had less money), we only had a single replica in LA and master in London. This obviously caused no end of problems if one or the other went down, as the latency was too high for either site to auth to the others OD host (cue 45min logins etc).

How can we ensure, in the future, that London clients try all three of the local OD hosts before trying further afield and vice-versa for LA?

Also… we have fileservers at both sites to deal with the local users home-directories, how can we prevent LAs clients from automounting the London HD mount and vice-versa? I don’t think this is a major problem, but I’m sure it causes some delays when the clients boot and causes unneccesary trafffic over the WAN.

Cheers
Dan

[pingu]

Thanks guys. I seemed to remember that it had a method of determining ‘closeness’.

Any ideas on the automounts?

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