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Date:      Tue, 13 Jun 2000 16:39:01 -0700 (PDT)
From:      Jaye Mathisen <mrcpu@internetcds.com>
To:        hackers@freebsd.org
Subject:   Has anybody looked at RAID-5 vinum performance on the "whole system"?
Message-ID:  <Pine.BSF.4.21.0006131635260.11271-100000@schizo.cdsnet.net>

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I was just curious what people's thoughts were on the potential "total
system throughput" (whatever you choose it to be), wrt using software
RAID.

It would seem that software RAID would just kill big chunks of cache, 
especially CPU cache, moving lots of data throught it to calcuate CRC's.

perhaps the raid 1/0's would be fine, since the calcuation could be
ignored.


It would seem that for file-server type tasks, where hopefully CPU is not
an issue, then as long as you can exceed the capacity of your network,
you're probably fine.

And most workstations probably don't run 100% (modulo things like the
various crackers and seti), that it's a non issue.  





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