Product manual

3.4.15 Receive Diagnostic Results command (1C
H
)
When the drive receives the Receive Diagnostics command after power-
up or after a Send Diagnostic command of PF=0, it sends eight diagnostic
data bytes to the initiator. The drive supports the optional Page format
wherein the initiator sends additional pages after a Send Diagnostic
command. These additional pages have a page code that specifies to
the drive the format of the data to be returned after it receives a Receive
Diagnostic Results command.
Bytes
Bits
76543210
0 00011100
1 LUN = 0 00000
2 00000000
3–4 Allocation length
5 00000000
Bytes 3–4
The
allocation length specifies the number of bytes the
initiator has allocated for returned diagnostic result data. An
allocation length of 0 means that no diagnostic data is
transferred;
this is not an error. The drive sends the lesser
of the allocation length or the bytes available, whichever
number is less.
3.4.15.1 Diagnostic data format
Bytes
Bits
76543210
0–1 (default) Additional length (0006
H
)
2–5 FRU code
6 Diagnostic error code
7 Vendor-unique error code
Byte 0–1
The
additional length value indicates the number of addi-
tional bytes included in the diagnostic data list. A value of
0000
H
means that there are no additional bytes. A value of
0006
H
means that no product-unique bytes are available.
Bytes 2–5
If the
field replaceable unit (FRU) code is 00
H
, there is no
FRU information. If the FRU code is 01
H
, replace the drive.
Other values are drive-unique.
Medalist Pro 2160N/2160WC Product Manual, Rev. A 57