Qualstar 34XX Series User Manual page 62

c.
If the tape drive is unable to write an error-free block within five write
retries,
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
GENERAL TESTS
3. Press
4.
Press ENTER. Display line two indicates
5.
Press ENTER. Display line two indicates
6.
Press ENTER. The BUSY indicator will illuminate, the test will begin, and
display line two will indicate
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
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.
4-18
will be displayed and the test will be terminated;
WRITE FAIL
, press ENTER. Display line one indicates
DIAGNOSTICS
.
. Display line one indicates
1600 BPI, WRITE.
Menu Operations
.
WRITE/READ TEST
.
ENTER = CONTINUE
WILL ERASE TAPE!
upon completion of all tests. Press
PASSED
500300 Rev. U