4-18
Menu Operations
500300 Rev. U
c.
If the tape drive is unable to write an error-free block within five write
retries,
WRITE FAIL
will be displayed and the test will be terminated;
3.
The drive writes two filemarks and rewinds the tape;
4.
The drive reads the tape in the streaming mode from BOT to the first filemark,
checking each block for the following conditions:
a.
Hard data errors
b.
Block length errors
c.
Correct filemark detection
d.
Correct number of blocks read
e.
Corrected data errors
At the end of the read pass, only the first error encountered in the preceding list will
be reported. The drive automatically repeats the test sequence for each density
available on the drive.
There should be no errors for a properly operating drive using quality tape.
However, it is possible for a properly operating drive to fail with hard errors if a
crease in the tape was encountered during writing. If the test fails, it should be
repeated once using a different tape.
To run the test, perform the following steps:
1.
Load any size reel.
2.
Use the front panel switches to enter the Diagnostic sub-menu. When display
line one indicates
DIAGNOSTICS
, press ENTER. Display line one indicates
GENERAL TESTS
.
3.
Press . Display line one indicates
WRITE/READ TEST
.
4.
Press ENTER. Display line two indicates
ENTER = CONTINUE
.
5.
Press ENTER. Display line two indicates
WILL ERASE TAPE!
6.
Press ENTER. The BUSY indicator will illuminate, the test will begin, and
display line two will indicate
1600 BPI, WRITE.
a.
Once begun, the test will run until completion, and display line two will
indicate the various operations as they occur.
b.
If no errors are detected, the test will be repeated at the remaining densities,
and display line two will indicate
PASSED
upon completion of all tests. Press
any switch to clear the message.
c.
If an error is detected while writing, the tape drive will attempt to recover by
performing up to five retries, during that time the Menu indicator turns off.
