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56 Understanding Veritas Volume Manager
Online relayout
(shown by the shaded area) decreases the overall storage space that the
volume requires.
Figure 1-27 Example of relayout of a RAID-5 volume to a striped volume
■ Change a volume to a RAID-5 volume (add parity). See Figure 1-28 for an
example. Note that adding parity (shown by the shaded area) increases the
overall storage space that the volume requires.
Figure 1-28 Example of relayout of a concatenated volume to a RAID-5 volume
■ Change the number of columns in a volume. See Figure 1-29 for an example.
Note that the length of the columns is reduced to conserve the size of the
volume.
Figure 1-29 Example of increasing the number of columns in a volume
■ Change the column stripe width in a volume. See Figure 1-30 for an
example.
Striped volumeRAID-5 volume
Concatenated
volume
RAID-5 volume
Three columnsTwo columns