HP Integrity NonStop H-Series - Manual (Page 24)

Installing and Configuring the 5258ACL Tabletop
Drive
5258ACL Installation and User’s Guide — 522345-001
2 -6
Descriptions of Configuration Options
Descriptions of Configuration Options
The items available on the Configuration menu are described next.
Set Data Format:
Use this setting to 1) set the data format to Auto Selection. THZ01, THZ02, DLT2000,
DLT2000XT, DLT4000, DLT7000, or DLT 8000, and 2) enable or disable data
compression. Compression cannot be enabled when either THZ01 or THZ02 format is in
use. This setting applies to the next or the currently, loaded cartridge only. An unload
command returns to the default. This setting does not display, the format of the loaded
tape. Revert to Show Status menu for this purpose. Default is Auto Selection for both
density and compression.
Set SCSI
Use this setting to enable or disable the robotics SCSI bus parity checking and set the
SCSI addresses of the drives and the robotics. The defaults are: parity on; DLT 1 Bus ID
= 5; Library Bus ID = 3.
Set Library Mode
Use this setting to set the robotics operating mode to Random or Sequential DLT1.
Random mode provides complete host control of the robotics; Sequential modes are
locally controlled. Sequential DLT1 begins with any cartridge loaded into DLT1. The
5258ACL monitors the status of DLT1, 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, or until an empty slot is encountered.
The default is Sequential.
When Sequential DLT1 is selected, an additional Sequential mode option appears that
lets you select Normal or Recirculate options. Normal option operates as described
above. In Recirculate mode, instead of stopping after the host has unloaded the cartridge
in the last slot, the operation continues by loading the cartridge in Slot 1. Recirculation
continues until an empty slot is encountered. The default for Sequential mode is Normal.
Set Element Base
Use this setting to set the base addresses of each of the three SCSI Elements of the
module. To identify sources and destinations in SCSI commands to the robotics, the
5258ACL 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 ten slots in the magazine; the Transfer Element is the drive.
The 5258ACL reports these settings in response to the SCSI Mode Sense command in
the Element Address Assignment Page. The defaults are Transport = 0000; Storage
element base = 0001; Transfer element base = 00F0 (DLT 1).