500300 Rev. U
Menu Operations
4-17
4.5.7
Demonstration Function
The
DEMONSTRATION
function is a sales tool mode that exercises tape motion and
displays a series of messages describing the features of the drive. It may be stopped
by pressing or EXIT.
4.5.8
Diagnostics Sub-Menu
The Diagnostics sub-menu contains several offline functions that can assist you in
isolating suspected problems with the tape drive. The tape must be loaded before
enabling the Write/Read, Motion, and BOT/EOT tests. The Write/Read test will not
function if the tape is file-protected. The available functions are:
•
General Tests
•
Write/Read Test
•
Motion Test
•
BOT/EOT Test
•
Display Command Log
•
AC Line Voltage
•
SCSI Diagnostics
4.5.8.1
General Tests
The
GENERAL TESTS
are the same nineteen tests (sixteen for models 340X) that are
performed each time the drive is powered up; they are described in Table 3-1.
4.5.8.2
Write/Read Test
CAUTION
The Write/Read test will overwrite any existing data on the tape and should be
used with discretion.
The
WRITE/READ
test takes about four minutes to perform and consists of the
following automated sequence:
1.
The drive selects 1600 CPI;
2.
The drive writes fifty blocks (32000 bytes) in the start/stop mode;
a.
This checks the accuracy of the tape positioning system as well as the write
formatter, write power system, write head drivers, and the head;
b.
Any blocks resulting in a hard or corrected error are erased and rewritten,
and the MENU indicator will extinguish during each retry;
