I've tried this in several ways - even through a T-1 we felt it was
inadequate - Multisite is your best bet
-----Original Message-----
From: Murphy, Jim [mailto:Jim_Murphy@ntc.adaptec.com
Sent: Wednesday, February 16, 2000 1:34 PM
To: 'cciug@rational.com'
Subject: [cciug] ClearCase over a WAN
Has anyone out there ever run Clearcase (NT) over a WAN. Specifically, you
have the NT client (and view storage) local to machine, with the VOB server,
registry, and license server across the country.
Of course, ClearCase's performance is....umm....adequate on a LAN and I've
done this experiment on a couple of cases.
Has anyone done this?
What kinds of bandwidth did you need to make it work?
What kind of latency did you network show? (This is where I think it kills
you. We did a simple checkout of a file and recorded some large number of
network "conversations" that were a result. DNS lookups, license, registry,
vob server access, etc. Something like 80 separate transactions. On a
LAN, this isn't noticable. However, on the WAN, we have ping reply tims of
about 200 ms coast-to-coast and this will really slow the whole process
down).
Any thoughts would be helpful.
Jim Murphy
Adaptec, Inc.
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