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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.arch
Subject: Re: architectural goals, Byte Addressability And Beyond
Date: Tue, 4 Jun 2024 23:25:18 -0000 (UTC)
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On Tue, 04 Jun 2024 13:11:52 GMT, Scott Lurndal wrote:

> Lawrence D'Oliveiro <ldo@nz.invalid> writes:
>
>>On Sat, 1 Jun 2024 07:47:49 -0000 (UTC), Thomas Koenig wrote:
>>
>>> One of the main selling points [of zSeries] is the hardware
>>> reliability ...
>>
>>Quite an expensive way to get reliability. How does an outfit like
>>Google achieve essentially 0% downtime? By running a swarm of half a
>>million commodity servers, that’s how.
> 
> And that's not expensive?

Consider the equivalent number of mainframes, with their inbuilt 
diagnostics capabilities etc, to match that reliability.