[Info-vax] New filesystem mentioned

[Kerry Main]

> -----Original Message-----
> From: Info-vax <info-vax-bounces at rbnsn.com> On Behalf Of IanD via Info-
> vax
> Sent: May 16, 2019 6:08 AM
> To: info-vax at rbnsn.com
> Cc: IanD <iloveopenvms at gmail.com>
> Subject: Re: [Info-vax] New filesystem mentioned
> 
> I seem to remember something about Oracle using the VMS clustering
> goodies too but it was nothing in writing, just spoken about. Perhaps it
was
> something to do with them using a dlm that was similar?
> 
> The Lustre file system makes direct mention of modeling some of it's
> distributed lock manager off of concepts used by VMS dlm
> 
> Like in lots of things, VMS has sat on it's outstanding technology and
charged
> an arm and a leg for it
> 
> This help foster a catch up market where others had an incentive to create
> their own.
> One can argue as much as one likes as to the strength of VMS clustering
but
> other offerings are now possibly just as good or good enough and the VMS
> premium is considered too expensive now
> 
> What and when was the last technological advance made in VMS clustering?
> Compare this to innovation made by others now and where clustering and
> distributed technology innovation comes from now
> 
> Hashgraph and related technologies might hold ways of expanding existing
> clustering technologies with it's blistering fast transaction rates (100's
of
> thousands of transactions per second). Sure, it's limited by the number of
> nodes you can gossip with in a reasonable timeframe, but I believe it's
> around 1000 or so, so maybe it could be adapted to support VMS clusters of
> that size?
> 
> Perhaps there's opportunity for VMS clusters still if they can truly be a
> backbone for distributed redundant synched data supporting high speed
> replication or is that chasing a crowded market?
> 
> But there's so much work to be done, this sort of cutting edge clustering
stuff
> could be 10 years away before being production available and I doubt I
could
> even imagine what other technologies might be upon us by then
> 
> At least VSI has done more for VMS in the short time they tucked VMS under
> their wing compared to HP who let it rot and worse, let the public think
it had
> no future by being vague about it's future until the 11th hour of it's
death
> announcement (yeah, I'm still a tiny bit bitter how HP treated VMS!!!)

Oracle's RAC clustering came from DEC's Tru64 UNIX.

The core or, at least a major portion, of DEC's Tru64 UNIX DLM came from
OpenVMS. 

I remember internal discussions about how Tru64 UNIX's DLM was not really
"active-active", but I think there are doc's on Internet that discusses
this.


Regards,

Kerry Main
Kerry dot main at starkgaming dot com