The cluster file system was famous for its distributed lock problems. VMS
may had been successful, but the cluster file system wasn’t.
-----Original Message-----
From: Bill Todd [mailto:xxxxx@metrocast.net]
Sent: Monday, April 22, 2002 4:44 PM
To: File Systems Developers
Subject: [ntfsd] Re: How to share storage device on logical block acce ss
level?
----- Original Message -----
From: “Arthur Kreitman”
To: “File Systems Developers”
Sent: Monday, April 22, 2002 6:56 PM
Subject: [ntfsd] Re: How to share storage device on logical block acce ss
level?
> I’m also interested in the “solution” to this problem. I’d love to
> know the name of one commercially successful (success==real market
> share) product that “solves” this problem.
VMS. While it’s relegated to niche status today, for a good portion of the
'80s VAX/VMS dominated the minicomputer/superminicomputer market, and from
1984 onward using clusters (indeed, the first commonly-used cluster product
and arguably the first cluster product period, though Tandem and IBM might
contend otherwise) which included a fully-distributed, shared-device cluster
file system. And VMS’s later fade had nothing to do with any inadequacies
in such areas (though with $4 billion annual revenue and $800 million annual
profit right through Y2K, despite nearly a decade of neglect by its owners,
it would not be too difficult to make a case that it was ‘commercially
successful’ right up into the periods your own experience seems to
encompass).
Any other questions?
- bill
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