[91] in Info-AFS_Redistribution
Re: Cache Manager/File Server
daemon@ATHENA.MIT.EDU (daemon@ATHENA.MIT.EDU)
Mon Mar 11 23:08:35 1991
Date: Mon, 11 Mar 91 22:20:04 EST
From: mahesh@numenor.next.nd.edu (Mahesh Subramanya)
To: info-afs@transarc.com
Quite frankly, apart from sys-admin isues, the physical proximity of
servers to each other is not going to make all that much of a
difference (except, of course, the magnetic flux caused by the
spinning disk drives 8-) ).
Seriously though, just be sure that the servers are
reasonably "close" vis-a-vis the n/w, to the clients. Remember, AFS
is going to be just about stable as the n/w connecting the severs to
the clients. Another issue to consider is the stability of your
network vs. the number of file servers that you have. Was a time
when we had three servers on one side of a router, and the fourth
elsewhere. The router went down, and I came in at 4.00 in the
morning...
Even if the servers are in the same room try to stick them on
your network such that n/w failures don't cause disasters. It's
worth while getting reasonably paranoid about this. On the other
hand, we once had our servers scattered all across the n/w, the
backbone went down, the servers lost time-sync, and i came in at 4.00
in the morning...
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Mahesh Subramanya INTERNET:
mahesh@darwin.cc.nd.edu
Senior Analyst
Office of University Computing
University of Notre Dame Voice: (219) 239-5600 x6421
Notre Dame, IN 46556
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