Sun Microsystems StorEdge L400, Installation And User Manual

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Chapter 6 Operating the Tape Library 6-5
6.2.0.1 SCSI Interface Mode
With the SCSI Interface mode, CHM motion is controlled by a SCSI driver that
allows the CHM to retrieve and replace cartridges as specified by the host through
the SCSI-2 command set.
Note – When you switch the tape library from SCSI Interface mode to another
mode, CHM operations are temporarily halted. However, tape drive operations can
still continue.
6.2.0.2 Sequential 1 Mode and Sequential 2 Mode
When the tape library is operating in the Sequential 1 mode, the CHM picks
cartridges from the removable cartridge holder sequentially and places them in
Drive 1 for processing. When the tape library is operating in the Sequential 2 mode,
the CHM places cartridges in Drive 2 for processing.
6.2.0.3 Dual Sequential Mode
For tape libraries with two tape drives, dual sequential allows you to use ten tape
cartridges (Magazine 0) in the removable cartridge holder in Drive 1 and ten tape
cartridges (Magazine 1) in Drive 2.
6.2.0.4 LCD Interface Mode
When the tape library is operating in LCD Interface mode, the user can instruct it to
perform CHM motion commands, such as picking and placing cartridges, and
performing diagnostics, from the Operator Panel without communicating across a
SCSI bus.
You do not have to operate the tape library in LCD Interface mode to use most of the
features available through the LCD. For example, you can use the LCD to check
system statistics when it is operating in any of the control modes.
Note –
LCD Interface mode is required only when you want to control the motions
of the CHM through the Operator Panel.