Ble 197 – Seagate Fibre Channel Interface User Manual
Page 306
292
Fibre Channel Interface Manual, Rev. D
Field definitions (listed alphabetically)
Additional Length
This 2-bytes value indicates the number of additional bytes included in the diagnostic data list. For example, if no product-
unique byte (byte 7) is available, this value would be 0006h.
000h
There are no additional bytes.
The most significant byte (MSB) is typically 000h or 0006h. The least significant byte (LSB) is typically 02AEh or nnnnh.
Additional Vendor-Unique Fault Information
Vendor-unique data.
FRU Code (Field Replaceable Unit Code)
These bytes identify an assembly that may have failed. The codes will be listed in probability order, with the most probable
assembly listed first and the least probable listed last.
00h
There is no FRU information. Seagate drives return this value in these bytes.
01h
The entire unit should be replaced.
Error Code
This value designates which part of a diagnostic operation has failed. These bytes are vendor-unique.
0081h
Buffer RAM diagnostic error.
00C1h
Data miscompare while doing drive diagnostics.
Table 197: Default self-test diagnostic data bytes
Bit
Byte
7
6
5
4
3
2
1
0
0
(MSB)
Additional Length
1
(LSB)
2
FRU Code (most probable)
3
FRU Code
4
FRU Code
5
FRU Code (least probable)
6
(MSB)
Error Code
7
(LSB)
8 - n
Additional Vendor-Unique Fault Information
Table
number