Chapter 3 Configuring Your Library
Working With Control Paths
Scalar i500 User’s Guide
79
Only one tape drive in a partition can be selected as the control path per
partition. In the event that the control path connection to the host
application fails, you can select a new control path for the partition.
Control paths should not be selected for partitions that contain FC tape
drives connected to a host applications through FC I/O blades, unless the
control path tape drive is NOT connected to an FC I/O blade.
The
Setup > Control Path
screens list a selected partition’s tape drives,
including the tape drive that is currently designated as the control path.
You can designate a new control path for the partition by selecting a
different tape drive. You can also disable a partition’s control path by
clearing the current control path selection.
The paths to open the appropriate screens are as follows:
• From the web client, select
Setup > Control Path
.
• From the operator panel, select
Setup > Control Path
.
Caution:
Do not select an FC tape drive as control path if it is
connected to an FC I/O blade. The control path will be
filtered out by the I/O blade and will not be visible to the
host.
Note:
You may need to modify settings in your host application as a
result of modifying the control path. See your host application
documentation.
Note:
Bold column headings in the table can be sorted. For example,
selecting the
Location
column heading will sort by location
coordinates.
Note:
If you have more than one FC I/O blade in the library, each FC
I/O blade will present each partition — that does not have a
tape drive as the control path — as a target device to the host.
Thus the host may see the same partition multiple times. To
minimize confusion, you should configure host mapping so
that each host sees each device only once. See
Configuring
Host Mapping
on page 111.