Hi,
I was flicking through the OpenVMS Roadmap presentation yesterday and came
across a couple of very interesting (at least to me) milestones regarding
Cluster Interconnects. Now, I'm pretty useless with hardware, "the laws of
physics capt'n", and not much better as a System Manager so I hope someone
can offer me a lay-man's view of what these developments could mean for
VMS
Cluster performance. (In particular the VMS Lock Manager.)
1) I saw 10 Gigabit NIC support scheduled for VMS 8.3 (Depending on which
slide you look at it says "Integrity Servers Only"). Now 10x what a lot of
people are using for a cluster-interconnect at the moment sounds pretty
shit-hot to me! Especially if you're moving big lock-trees around the
cluster. Given that this functionality is less than a year away, surely
some
performance figures or at least anecdotal evidence should be available? I
mean, if I was an Rdb engineer that had used piss-poor DLM performance as
the rationale for sticking all of my R&D eggs in the stand-alone
single-node
basket, then I'd be interested in what's happening with this. Right? "But
it's not the bandwidth, it's the latency that gets ya." Well that brings
me
to the next slide. . .
2) Next Generation Low-Latency Interconnects Post 8.3 (Integrity Servers
Only)
Am I the only person getting their jollies out of this or what?
I forget when Oracle10g was scheduled to arrive but I'd dearly love to
hear
from anyone using Cache Fusion and is looking at this!
Will there be a special limit on the distances between nodes for this
stuff
to work? (Like memory channel) Can you have a Disaster Tolerant Low
Latency
Cluster?
Regards Richard (Just off to have a cold shower) Maher
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