To create a volume where two enclosures are connected to a host. The first through controllers c1, c2 and the second through controllers c3, c4.
The following can be used:
# vxassist make vol1 1024 !ctlr:c1
results in disks from the first enclosure being excluded from the operation because all disks in the first enclosure are accessible through c1 (and c2). The command:
# vxassist make vol1 1024 !ctlr:c2
has the same effect (of excluding disks in the first enclosure) in the above configuration. The command:
# vxassist make vol1 1024 layout=mirror nmirror=2 mirror=ctlr
results in the mirrors being placed across the controller groups c1, c2 and c3, c4.