HP 3000 Series Handbook page 154

For HP Internal Use Only
SCSI-2 Error Code. A bit value of 0 (zero) specifies current error; a bit value of 1 (one)
specifies deferred error.
Error Class. This field is always equal to 7.
Valid. When set to 1, the VALID bit indicates that the Information Bytes field contains valid
information. The exact significance of the Information Bytes depends on the status of the
Sense Key field.
Segment Number. Set to zero (0). Used for Copy and Search commands; not supported in
this product.
FM {File Mark), EOM {End of Media), ILl {Incorrect Length Indicator). All set to zero (0).
Sense Key. This field is used to indicate the type of error that has occurred, and the recovery
action that should be taken by the initiator. It is the primary piece of information available
to the Initiator for making decisions based on errors detected by the Target. The Sense Key
codes shown in Table 5-48.
Additional Sense Code. This field is specific for each sense code and provides additional
information about the cause of that particular Sense Key. Additional Sense Codes are listed in
Table 5-49.
Information Bytes. Contain information relative to specific commands and specific devices.
Additional Sense Length. Specifies the number of additional Sense data bytes to follow. Set to
14 for SCSI (CCS) or 20 for SCSI-2.
Command Specific Information. Contains information dependent upon the command that was
executed. Specific details are included in appropriate command explanations.
Additional Sense Code Qualifier. Not supported, reported as zeros.
Failed Field Replaceable Unit {FRU). Refers to the Field Replaceable Unit (FRU) that caused
the current error reported in this Sense Key. This field will be set to 0 since FRU specific
error detection is not supported.
SKSV {Sense Key Specific Valid). Not supported, reported as zeros.
Device Error Field. Indicates device unique error codes designed to aid service personnel in
more detailed analysis of any drive faults. This field consists of four bytes.
SCSI-2
Byte
Description
24 Vendor Unique DERROR Status Codes: listed in
Table 5-50.
25 ESDI Status Byte: listed in Table 5-51.
26-27 SCSI Status Bytes: listed in Table 5-52.
5-50 Troubleshooting