[482] in Info-AFS_Redistribution
Will clients use the "nearest" server?
daemon@ATHENA.MIT.EDU (Peter Lister, Cranfield Computer C)
Thu Dec 5 23:28:34 1991
Date: Thu, 5 Dec 91 14:00 GMT
From: "Peter Lister, Cranfield Computer Centre" <CC012@cranfield.ac.uk>
To: INFO-AFS <@nsfnet-relay.ac.uk:INFO-AFS@TRANSARC.com>
We have a Broadband backbone with departmental thick and thin wire Ethernets
attached via bridges. All AFS servers now sit in the Computer Centre, but some
will move to departments to reduce dependence on the CC net and campus
backbone. Important system volumes will be replicated on every server; a user's
home directory will reside on his/her department's server.
Question: Will clients use the physically nearest server where there is a
choice of read-only volumes, hence reducing backbone traffic?
Do clients use the server which reacts fastest? If not how do they choose? Is
it possible to weight clients in favour of a local server? Does the ordering of
db servers in CellServDB have any effect? Or is it entirely random?
Once a client has found a server for a volume, does it ignore others until the
server fails? When part of a volume is cached, do clients favour the server
that the first part came from when pulling more of it?
Lastly, can anyone point me to a "further info" document that might help?
Peter Lister p.lister@cranfield.ac.uk
Computer Centre,
Cranfield Institute of Technology, Voice: (0234) 750111 ext 3157
Cranfield, Bedfordshire MK43 0AL England Fax: (0234) 750875
