Re: Why OpenVMS is better than linux ...
From:Date: 10/30/02
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Date: Wed, 30 Oct 2002 22:00:30 +0200
But ...errr...where i can download the source code :) ?
On Tue, 29 Oct 2002 19:29:29 +0000, Bob Ceculski wrote:
> Why OpenVMS ?
>
> OpenVMS is the most well designed computer operating system in the
> world. It is very popular in environments where stability,
> reliability, high performance, disaster tolerance, security,
> scalebility and clustering are required.
>
> Here are some facts:
>
> Multi-user interactive user support, full shared-resources clustering,
> uptime, robust file system with individual volume limits circa one
> terabyte (and thousands of volumes), huge system performance and
> application scaling, networked GUI interface, 64-bit flat virtual
> addressing, built-in tools for local backup and recovery, far better
> "DLL-like" support for modular coding and distributions, built-in
> record management support (heirarchical database), rolling upgrades of
> layered products and the operating system in cluster environments
> (continuous uptime, even with software upgrades), built-in batch-print
> capabilities, support for a variety of networking protocols (COM, SMB,
> NFS, IP, DECnet, X.25, http, etc), remote network system logins,
> built-in system dump and analysis facilities, built-in multi-user
> security and auditing, built-in multiple and mixed-language
> programming capabilities, good documentation, orderable CD-ROM source
> listings of the operating system internals and source code, process
> and engineering that targets the avoidance of introducing security
> problems and typical virus infection paths, built-in system tuning
> tools, built-in application debugging and application dump tools,
> support for symmetric multiprocessing environments of up to 32 CPUs in
> a single system (and up to 96+ nodes in a cluster), built-in standard
> product installation tools and associated product installation
> packaging tools, a central goal of upward-compatibility of user-mode
> applications and tools over OpenVMS releases, support for systems with
> 256 gigabytes of physical memory, available full operating system and
> hardware support from a single source, powerfull and easy to use
> no-nonsense user interface, etc.
> Continuous OpenVMS system uptimes of over ten years are not unheard
> of. Some of these systems -- those configured in clusters -- can be
> running current OpenVMS releases, with very long cluster uptimes, with
> the rolling-upgrade capabilities.
> OpenVMS has more than 450,000 installed systems with over 10 million
> users.
> OpenVMS is the #1 rated operating system in the healthcare industry.
> More than 90% of the world's CPU chips are manufactured on lines
> running OpenVMS.
> More than 50% of the world's cellular phone billing systems run
> OpenVMS.
> More than 95% of the world's top financial exchanges run on OpenVMS or
> Tandem systems.
> For these reasons OpenVMS is used in many production environments and
> financial and medical institutions where non-interruptability and
> continuous computing (24*365) are an important issue. Military
> contractors also accept it as the one and only operating system for
> providing maximum security with maximum numerical throughput.
>
> Still today many other operating systems have tried to come up to its
> level, but none of them come even close to the many qualities and
> advantages of OpenVMS.
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