Table 1. Differences between DPF and CPF
Characteristic
CPF
DPF and Load
Balancing for
Ultrium 2 and
newer tape
drives
DPF and Load
Balancing for
3592 tape
drives
AIX.
8.
Ultrium 4 and newer tape drives do not require license keys at the host when
configuring Data Path Failover.
The path failover features can be ordered from the factory, or you may order them as field
upgrades. To order features, contact your IBM Sales Representative.
Note:
The control path failover feature for Ultrium tape drives is activated by a license key
that you enter at the library operator panel. The data path failover feature for Ultrium 1,
Ultrium 2, and Ultrium 3 tape drives is activated by a license key that you enter at the host.
For Ultrium 4 and newer tape drives, license keys do not need to be entered at the host
when configuring Data Path Failover.
For more information about using these features, see the
IBM Ultrium Device Drivers
Installation and User's Guide
.
Parent topic:
Expanded I/O capacity
This section describes the extra input/output (I/O) stations that you can order for the
TS3500 Tape Library.
To insert cartridges into and remove them from the TS3500 Tape Library (without requiring
a reinventory), the library comes with an I/O station located on the front door of the base
frame models. You can optionally order an additional I/O station for installation on base
frame models.
A base frame cannot combine both the 3592 tape drive and Ultrium tape drive. However, in
a library that mixes frame types, you may insert 3592 tape cartridges into the lower I/O
station of a Model L53, L52, or L32 frame for transport (by the cartridge accessor) to a
Model D23 or D22 frame (your library must contain an I/O station that will accept 3592 tape
cartridges). Similarly, you may insert LTO Ultrium tape cartridges into the lower I/O station
of a Model L23 or L22 frame for transport (by the cartridge accessor) to a Model D53, D52,
or D32 frame (again, your library must contain an I/O station that will accept Ultrium tape
cartridges).
