-------------------<snip>---------------------
There's nothing wrong with stripes over stripes. I've referred to this
as braiding in the past.
With a good pre-fetch algorithm the storage uses the parallelism of the
striped arrays to feed the cache in large block requests from many
disks, and in turn the RAID-0 dataset can feed the sequential read
process by pre-fetching from many concurrent volumes and paths.
Braiding is a good thing. It is heavily used in UNIX land, Not so common
on Windows, and unfortunately (for some unknown reason) strangely rare
in MVS.
------------------<unsnip>--------------------
At the risk of sounding obtuse, I have to ask the question: why is
striping even an issue today?
Given the architecture of modern "DASD-like" storage systems and the
advent of Dynamic PAV, the hardware and operating system facilities SEEM
to address all of the performance considerations that might seem to
mitigate in favor of striping.
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