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52 Understanding Veritas Volume Manager
Volume layouts in VxVM
Figure 1-25 Example of a striped-mirror layered volume
Figure 1-25 illustrates the structure of a typical layered volume. It shows
subdisks with two columns, built on underlying volumes with each volume
internally mirrored. The volume and striped plex in the “Managed by User” area
allow you to perform normal tasks in VxVM. User tasks can be performed only
on the top-level volume of a layered volume.
Underlying volumes in the “Managed by VxVM” area are used exclusively by
VxVM and are not designed for user manipulation. You cannot detach a layered
volume or perform any other operation on the underlying volumes by
manipulating the internal structure. You can perform all necessary operations
in the “Managed by User” area that includes the top-level volume and striped
mirrored
VM disks
Underlying
Subdisks
Striped plex
Striped-mirror
vol01-01
vol01
Concatenated
Managed
Managed
Subdisks on
disk04-01
disk05-01 disk06-01 disk07-01
vop01 vop02
volumes
plexes
vol01-01
Column 1Column 0
disk06-01
disk07-01
disk04-01
disk05-01
volume
vop01 vop02
by User
by VxVM