Table 5-169 Sense Data Fields (Error Code 70H)-Field Descriptions; Field Definition - Maxtor Atlas 10K V Product Manual

Table 5-169
Field
The Valid bit, when set to 1, indicates that the Information field contains valid information, as defined
Valid
below. When set to 0, it indicates that the contents of the Information field are not as defined below.
Either 70h, indicating that current errors are to be reported, or 71h, indicating deferred errors are to be
Error Code
reported.
Segment
This feature is not supported and will return a zero value.
Number
FileMrk The File Mark field is reserved for sequential access devices. This field will return a zero value.
The End-of-Medium field is reserved for sequential access and printer devices. This field will return a
EOM
zero value.
Incorrect Length Indicator. When this bit is set to 1, it indicates that the requested logical sector length
ILI did not match the logical sector length of the data on the media. This field is only set for incorrect byte
transfer lengths on a READ LONG and WRITE LONG command descriptor block.
The sense key, additional sense code, and additional sense code qualifier provide a hierarchy of infor-
mation. The sense key provides the highest level of information about error and exception conditions.
Sense Key The additional sense code and qualifier provided more detailed information.
The sense keys supported by the drive are described in Table 5-173.
The Information field contains the following device-type or command-specific information:
1) The unsigned logical sector address associated with the sense key.
Information 2) The difference between the requested length and the actual length in either bytes or sectors, as de-
termined by the command. This difference is called the residue.
3) A description of each of the drive's supported commands definition for this field is contained in Ta-
ble 5-171.
Additional The Additional Sense Length field indicates the number of addition sense bytes that can follow. If the
Sense Allocation Block Length specified in the Command Descriptor Block is too small to transfer all of the
Length additional sense bytes, the Additional Sense Length byte value is not adjusted to reflect the truncation.
Command- The Command-Specific Information field is valid only for Sense Data for a failed REASSIGN
Specific In- BLOCKS command. It contains either the Logical Block Address of the first defect descriptor not re-
formation assigned or, if all the defect descriptors were reassigned, FFFFFFFFh.
The Additional Sense Code field indicates further information related to the error or exception condi-
Additional
tion reported in the sense key. If the drive does not have further related information, the additional
Sense Code
sense key is set to NO ADDITIONAL SENSE INFORMATION. See Table 5-172.
Additional
The Additional Sense Code Qualifier field indicates detailed information related to the additional sense
Sense Code
code. If the drive does not have detailed information, the field is set to 0.
Qualifier
Field Re-
placeable The Field Replaceable Unit Code specifies a unit that has failed:
Unit
Code
1
2
3
Sense-Key Specific Valid bit. This bit is 1 for all sense keys listed in Table 5-170 (exception: NOT
SKSV READY and UNIT ATTENTION/RPL Status Change). The SKSV bit and Sense-Key Specific bytes
may be 0 when the sense key is NOT READY.
Sense-Key The contents of the Sense-Key Specific field are unique to each sense key. Table 5-171 summarizes
Specific the sense keys for which the drive supplies sense-key specific information. (See SKSV.)
5-116 Maxtor Atlas 10K V
Sense Data Fields (Error Code 70h)-Field Descriptions
Definition
FRU
Host
Hard Disk Assembly (HDA)
Printed Circuit Board Assembly (PCBA)