Dual Path Concentrator; Dual Accessor Zones - IBM TotalStorage 3494 Tape Library Operator's Manual

The LAN Host Status window has the following push buttons:
OK Closes the LAN Host Status window.
Help Provides help about the LAN Host Status window.

Dual Path Concentrator

The Dual Path Concentrator window displays a list of devices that are Dual Path
Concentrator capable. From this window, you can also enable/disable the Dual
Path Concentrator function on the Library Manager.
Figure 108. Dual Path Concentrator Window
To enable or disable the Dual Path Concentrator Function on the Library Manager,
mark or unmark the checkbox.

Dual Accessor Zones

Note: You can view dual accessor zones from the Specialist (see "Specialist
Features and Functions" on page 396).
The Dual Accessor Zones window (Figure 109 on page 188) displays a diagram
showing the string of frames that make up the 3494 Tape Library. It also has
indicators that show the frames that each accessor services. Boundary is the frame
number of the frame that is currently serving as the zone boundary between
Accessor A's work zone and Accessor B's work zone. Mode is the boundary mode
(fixed or float). Fixed means the boundary is fixed and does not change based on
activity. Float means that the boundary changes automatically based on activity to
balance the accessor work load. The default mode is float.
Chapter 6. Advanced Operating Procedures
187