[90096] in North American Network Operators' Group
RE: data center space
daemon@ATHENA.MIT.EDU (Edward B. DREGER)
Tue Apr 25 15:21:05 2006
Date: Tue, 25 Apr 2006 19:20:38 +0000 (GMT)
From: "Edward B. DREGER" <eddy+public+spam@noc.everquick.net>
To: "'nanog'" <nanog@merit.edu>
In-Reply-To: <00bc01c667f8$f1cb2310$046f09cb@ltdbeast>
Errors-To: owner-nanog@merit.edu
LD> Date: Tue, 25 Apr 2006 09:43:51 +1000
LD> From: Lincoln Dale
LD> I suggest you talk to some of the folks you work with that have to
LD> deal with synchronous replication.
LD>
LD> In the world of storage networking & synchronous I/O, typically
LD> anything higher than 1 msec round-trip latency is too high.
This is a big can of worms that's probably OT for NANOG -- not to
mention likely outside most readers' realm of experience. It _is_ an
interesting field, though. I recommend the Morgan Kauffman book series
as a good introduction.
One also could argue the necessity and sufficiency of synchronous I/O in
and of itself. There's a good deal of work, both published and strictly
"in the lab" dealing with transactional commit mechanisms.
Eddy
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