FUJITSU MHV2080AS - Manual (Page 24)

Maintenance and Diagnosis
1-10 C141-F073
Table 1.1 Status register contents
Bit Contents
BIT0=1 Shown in Table 1.2
BIT1, 2 It is not necessary to take any measure when other bits are
normal, in spite of these bits. (Normal)
BIT3=1
BIT4=1
BIT5=1
BIT6=0
BIT7=1
Any of these
cases.
(1) Check whether vibration is transmitted because of the way
the disk drive is mounted.
(2) Check the power, cable, and connector.
(3) If it is concluded that the disk drive is the cause, replace the
disk drive.
Table 1.2 Disposition for error register contents
Error bit Method of disposition
BIT0
BIT1
BIT4
BIT6
Any of these
bits are “1”.
If it is concluded that the disk drive is the cause, replace the
drive.
BIT2
BIT7
Any of these
bits are “1”.
(1) Check the status of the host, cable, and drive.
(2) If it is concluded that the disk drive is the cause,
replace the drive.
1.2 Operation Confirmation
1.2.1 Operation test
When the host computer is processing data, the disk drive monitors disk drive
operation errors including data, command, and seek errors. The host is notified of
the error that the disk drive detected and the user is notified of its result.
The user may notice intermittent and indefinite failures such as overlong
execution time, abnormal noise, abnormal odor, or failures in particular processes.
The failure reported in the operation test will need further investigation. To
ascertain the cause of the disk drive failure reported, the disk drive can be
replaced. Failures in the operation test are often not caused by the host system.
For example, not having enough power supply reserve, a loose cable connection,
no timing and mechanical reserves, or relationship with other systems.