Re: Oracle RAC Performance - Two node test provides scaling to 10+nodes?

From: Jesse <jesjdavis_at_gmail.com>
Date: 18 May 2005 13:09:43 -0700
Message-ID: <1116446983.953959.18830@o13g2000cwo.googlegroups.com>

Per the following post by Howard J. Rogers:

http://groups-beta.google.com/group/comp.databases.oracle.server/browse_frm/thread/f7c5005848e9217e/9b6d2a57d387194e?q=Oracle+10G+Cache+Fusion&rnum=4#9b6d2a57d387194e

As the number of nodes increase, a solid interconnect (i.e. low-latency, high bandwidth) becomes more and more important.

Howard also gives a quick summary of Cache Fusion (same post) as follows:

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Cache fusion means nothing much more than messages going back and forth across the interconnect asking 'who is in charge of this

resource' and 'may I have it?", and occasionally the data block itself getting sent via the same pathway. But there's no 'synchronisation' on all
of that... just a directory master coordinating serialised access to the
block.

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Jesse Received on Wed May 18 2005 - 15:09:43 CDT