Compaq TL891 - DLT Tape Library User Manual page 100

3-42 TL891 MiniLibrary System User's Guide
Descriptions of Configuration Options
Table 3-2 summarizes the configuration settings for the MiniLibrary System.
The items available on the Configuration Menu are as follows:
Set Data Format: This setting enables you to 1) set the data format to Auto
Selection, THZ01, THZ02, DLT2000, DLT2000XT, DLT4000; or DLT7000;
and 2) Auto Selection, enable, disable data compression. Compression can not
be enabled when either THZ01 or THZ02 format is in use. This setting applies
to the next or currently loaded cartridge only. An unload command returns to
the default. This setting does not display the current format of the loaded tape.
Use the Show Status Menu for this purpose. The default for density and
compression is Auto Selection.
Set SCSI: This setting enables you to 1) enable or disable the library robotics
SCSI bus parity checking, and 2) set the SCSI addresses of the drives and the
library robotics. The defaults are: parity enabled; Library Bus ID = 0. The
designators DLT 0 through DLTn refer to the first through nth drives, counting
from top to bottom. The actual designator used by the system depends on the
number of drives in the system and the placement of the module in the system.
Set Library Mode: This option enables you to set the library robotics
operating mode to Random, Sequential DLT0, Sequential DLT1, or Sequential
Split. Random is the normal operating mode which affords complete host
control of the library robotics. The Sequential modes are locally controlled
modes. Sequential DLT0 begins with any cartridge loaded into DLT0. The
Base Module monitors the status of DLT0, and when the cartridge is unloaded
by the host, it loads the next cartridge in magazine numerical order. This
operation continues to cycle until all of the cartridges have been loaded.
Sequential DLT1 is the same, except that the cartridges are loaded into DLT1.
Sequential Split mode provides two simultaneous sequential modes. Cartridges
0 through 4 are loaded sequentially into DLT0; cartridges 5 through 9 are
loaded sequentially into DLT1.
Set Element Base: This setting allows you to set the base addresses of each of
the four SCSI elements of the module. In order to identify sources and
destinations in commands to the robotics, the Library System is divided into
elements, each of which is assigned a separate designator or element address.
The Transport Element is the robotics mechanism itself; the Storage Elements
are the slots in the magazines; the Transfer Elements are the drives, and the
Import/Export Element is the mail slot or slots. The Module reports these
settings in response to the SCSI Mode Sense command, in the Element
Address Assignment Page. The defaults are Transport element base = 0000,
Storage element base = 0001, Transfer element base = 00F0, and
Import/Export element base = 00E0.
Compaq Confidential – Need to Know Required
Writer: Everett Godaire Project: TL891 MiniLibrary System User's Guide Comments:
Part Number: ER-TL891-UA.A01 File Name: d-ch3 Installation Last Saved On: 3/2/99 2:30 PM