Fujitsu MBA3300NP Manual Do Utilizador

Página de 138
(1) Interface 
test 
 
The operations of the SCSI bus and data buffer on the HDD are checked with the WRITE 
BUFFER and READ BUFFER commands. 
 
(2) 
Basic operation test 
 
The basic operations of the HDD are checked by executing self-diagnosis with the SEND 
DIAGNOSTIC command (see Subsection 6.1.1). 
 
(3) 
Random/sequential read test 
 
The positioning (seek) operation and read operation are tested in random access and sequential 
access modes with the READ, READ EXTENDED, or VERIFY command. 
 
(4) Write/read 
test 
 
By using a data block in the internal test space, the write/read test can be executed with an 
arbitrary pattern for a disk drive in which user data is stored. 
 
6.2 Maintenance 
 
See Section 5.1 and 6.5 for notes on packaging and handling when returning the HDD. 
CAUTION 
 
Data loss 
Save data stored on the HDD to other media before requesting 
repair. Fujitsu does not assume responsibility if data is corrupted 
during servicing or repair. 
 
6.2.1 Precautions 
 
Take the following precautions to prevent injury during maintenance and troubleshooting: 
CAUTION 
 
High temperature 
To prevent injury, never touch the HDD while it is hot. The DE and 
LSI become hot during operation and remain hot immediately after 
turning off the power. 
 
C141-E270 
99