Re: OT: Elephants Can't Dance

johnwallace4@xxxxxxxxxxx wrote:
On Mar 1, 9:04 pm, Michael Austin <maus...@xxxxxxxxxxxxxxxxxx> wrote:
sapienzaf wrote:
Here's my point about Oracle buying OpenVMS being a bad thing.
<snip>



I also don't think Oracle needs or wants to be an operating system
company. They seem to be quite comfortable with a multi-platform
database and associated applications.
Ummmmm, you might want to rethink this statement given that they now are
actively developing and support Oracle Enterprise Linux. Granted, they
stole it from RedHat, but they have stated they are in that business for
the foreseeable future - as evidenced by the use of this in their
Exadata server (similar paradigm to the Niteeza and Teradata). The
hardware is currently only available from HP but, again, the underlying
OS is OEL.

BTW, you are aware that the CRS (Cluster-Ready-Services) in 10gRAC
**IS** the cluster manager from VMS (via Tru64)... ???

As for previous discussions about the cross-pollenization of RDB/RDBMS,
I have seen a LOT of features from Rdb slowly make their way into the
RDBMS product. CBO, partitioning, in 11g - meta-data versioning,
Locally managed tablespaces (they use the same RDBMS terms, but in
reality it is the Rdb storage area management. Initially when Rdb was
sold to Oracle, they were talks of merging the two products into one
BEST-IN-CLASS product. AFTER the deal was "done" they realized and
stated that such a merger would be 15-20 year project. We are at year
14 in that timeline. RDBMS STILL does not have the means to do
near-realtime instance/database monitoring like RMU/SH STATS... If they
did, they would wipe out many of those "after-market" tools like I3
that sort-of does this.. then we could replace those
horrendous-performing "scripts" to try and figure out the same stuff...

What does "**IS** the cluster manager from VMS (via Tru64)" mean? VMS
doesn't have (or need) a cluster manager as such, it's all kind of
"built in" wherever it makes sense.

Yes the "cluster manager" was built into VMS and not an after-thought, but its pieces parts that make it work - the quroum disk, the lock manager, tcpip cluster address etc... cluster-"heart-beat" were all pulled out of VMS and ported to Tru64 v5.1 IIRC. It was these bits that were "licensed" to Oracle whereby they now call it Cache-Fusion (lock manager) and Cluster Ready Services. The "tcpip" portion would relocate the Virtual IP address from one node to another.

They added a few more pieces on top of it to manage the database "services", but its base is still the VMS cluster manager.(builtin or not, it still exists).
.

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