39Understanding Veritas Volume Manager
Volume layouts in VxVM
Figure 1-14 Striping across three columns
A stripe consists of the set of stripe units at the same positions across all
columns. In the figure, stripe units 1, 2, and 3 constitute a single stripe.
Viewed in sequence, the first stripe consists of:
■ stripe unit 1 in column 0
■ stripe unit 2 in column 1
■ stripe unit 3 in column 2
The second stripe consists of:
■ stripe unit 4 in column 0
■ stripe unit 5 in column 1
■ stripe unit 6 in column 2
Striping continues for the length of the columns (if all columns are the same
length), or until the end of the shortest column is reached. Any space remaining
at the end of subdisks in longer columns becomes unused space.
Plex
Subdisk Subdisk Subdisk
su3su2su1
su4 su5 su6
Column
Column Column
SU = stripe unit
123
012
Stripe 1
Stripe 2
