[Info-vax] Re; Spiralog, RMS Journaling (was Re: FREESPADRIFT)

[Stephen Hoffman]

On 2016-06-18 22:57:50 +0000, Kerry Main said:

> You are missing the point.

Um, no.   I'm not.  I know exactly what approach you are following, I 
am very familiar with DT as implemented on OpenVMS, and I've seen it 
fail utterly for products and for the competitiveness of more than a 
few organizations.   General requirements and expectations — not losing 
transactions — can be provided in different ways.   Sometimes in very 
different ways.   Speeds, feeds, features, tools and designs change.  
Sometimes for worse.  Often for better.   Existing software and 
existing designs and existing assumptions either adapt, or they get 
replaced.  Failure to consider and examine and adopt newer approaches 
is how various products and various organizations fail.   This is where 
I certainly hope that new file system VSI is looking at is way past 
SSD-ready and pondering newer non-volatile mechanisms and not 
compromising for HDD support, for instance.  Where clustering adopts 
faster host-to-host and server-level replication designs — whether 
that's akin to MC or Galaxy or RDMA or otherwise; host-based server 
shadowing, etc.


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