User`s guide

148 Implementing an Open IBM SAN
Figure 2-95 PC1_1 and ESS FC port selected
In fact there is no volume configured on the ESS which is not assigned to this
port. This is indicated by the lack of any colored space on the disk group, apart
from the color of purple for the selected host FC port assigned volumes, or green
for unused space.
When a host FC port is selected, there is no indication that two of the volumes
are shared between both the defined host FC ports. To see if ESS logical
volumes are shared, we have to select a disk group. In Figure 2-96, we see a
disk group selected, that contains assigned volumes.