Partners SurfRAID TRITON Mini, Руководство пользователя

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Introduction
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1.4.3.3 Online Capacity Expansion
Online Capacity Expansion makes it possible to add one or more physical
drives to a Volume Set, while the server is in operation, eliminating the need
to store and restore after reconfiguring the RAID Set. When disks are added
to a RAID Set, unused capacity is added to the end of the RAID Set. Data on
the existing Volume Sets residing on that RAID Set is redistributed evenly
across all the disks. A contiguous block of unused capacity is made available
on the RAID Set. The unused capacity can create additional Volume Set.
The
expansion process is illustrated as following figure.
The SurfRAID TRITON Mini controller redistributes the original Volume Set
over the original and newly added disks, using the same fault-tolerance con-
figuration. The unused capacity on the expand RAID Set can then be
used to create an additional Volume Sets, with a different fault tolerance set-
ting if user need to change.