[Info-vax] Current VMS engineering quality, was: Re: What's VMS up to these

[JF Mezei]

Johnny Billquist wrote:

> I've never seen any such thing. How would you expect each Unix instance 
> to manage the disk structure with caching and writing the same blocks as 
> another instance?

isn't that why Unix shops put everything into the hands of Oracle which
does have a DLM and does let multiple instances of an OS access the same
databases ?

Or do disk arrays really serve files via NFS  to multiple instances of
Unix ?


The thing is that the world continues to function and the sky has not
fallen despite Unix lacking a DLM and more and more shops having
multiple instances of Unix running at the same time.


How does Google handle having 50,000 Linux nodes (or whatever number
they have have shared access to databases ?