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8 Krypton

Re: What is meant by a hyper?

A hyper is what is actually on a single disk drive in the Symemtrix.  A symmetrix volume is what is host presentable.  So it sounds as though you have Raid-5 3+1.  Raid 5 3+1 takes a Symmetrix volume slices it 4 ways and put those four slices on four different physical drives but they are presented as a single symmetrix volume.

Hyper is on the physical disk

symmetrix volume or symmvol is what is able to be presented to a host.