User`s guide

Chapter 2. IBM TotalStorage Enterprise Storage Server configuration 137
The items that have changed on the disk group information since our last visit,
are the Host Storage row and the Not Allocated row.
Host Storage is the space that now has an ESS logical volume of 16.1GB
assigned to the selected host FC port.
Not Allocated means the space that can be used to define other ESS logical
volumes on.
Last but not least, we can also click on the disk array without selecting a host FC
port first. The panel’s look changes again when only the disk group is selected.
This is shown in Figure 2-82.
Figure 2-82 Disk group selected
To deselect everything that is currently selected, we press the Clear View button
on the top of the panel, or we can click on the host FC port that is selected. Then
we select the disk group in cluster one.
Notice that the part of the disk group that was purple before has changed to red.
This is because we did not specify that we are interested in the volumes that are
assigned to a particular host FC port. Instead, we now see the storage that is
allocated to any of the host FC ports. The host FC port icons that have ESS
logical volumes assigned to them on this disk group, now show up in the host
interfaces row and are also highlighted yellow.
In our case, only the host FC port PC1_1 has a volume on this disk group
assigned to it, and therefore there is only the icon of this port visible.