[Info-vax] OT: distributed authentication (etc) .ne. distributed file systems

[johnwallace4 at yahoo.co.uk]

On Saturday, 20 February 2016 00:48:09 UTC, Stephen Hoffman  wrote:
> On 2016-02-20 00:40:04 +0000, johnwallace4 at yahoo.co.uk said:
> 
> > Tru64 got something resembling a cluster-aware file system and other 
> > core VMScluster concepts eventually, before Tru64 was abandoned.
> 
> There are other things resembling cluster-aware file systems available, 
> too.   https://www.apple.com/support/osxserver/xsan/
> 
> 
> -- 
> Pure Personal Opinion | HoffmanLabs LLC

Got a more specific reference? All I get from an admittedly very
quick glance at that document is:
1) Apple's server software can access SAN storage
2) Apple's server software does Appletalk (AFP) and Samba (SMB2) so
other systems can access our files.

Doesn't sound all that shiny vs the competition, so maybe I missed
something that makes it more like a cluster class file system (e.g.
built on a proper robust distributed lock manager, built on a proper
robust intra-cluster comms architecture)?