Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Online Relayout
38 VERITAS Volume Manager Administrator’s Guide
The following are examples of operations that you can perform using online relayout:
◆ Change a RAID-5 volume to a concatenated, striped, or layered volume (remove
parity). See “Example of Relayout of a RAID-5 Volume to a Striped Volume” on
page 38. Note that removing parity (shown by the shaded area) decreases the overall
storage space that the volume requires.
Example of Relayout of a RAID-5 Volume to a Striped Volume
◆ Change a volume to a RAID-5 volume (add parity). See “Example of Relayout of a
Concatenated Volume to a RAID-5 Volume” on page 38. Note that adding parity
(shown by the shaded area) increases the overall storage space that the volume
requires.
Example of Relayout of a Concatenated Volume to a RAID-5 Volume
◆ Change the number of columns in a volume. See “Example of Increasing the Number
of Columns in a Volume” on page 38. Note that the length of the columns is reduced
to conserve the size of the volume.
Example of Increasing the Number of Columns in a Volume
Striped VolumeRAID-5 Volume
Concatenated
Volume
RAID-5 Volume
Three ColumnsTwo Col u mn s