Maxtor 10K V Status Reporting, Sense Data Format for Error Code 70h and Error Code 71h, Eom Ili

5.32.2Status Reporting

The drive returns CHECK CONDITION status for a REQUEST SENSE command only to report errors specific to the command when:

•A non-zero reserved bit is detected in the Command Descriptor Block.

•A drive malfunction prevents return of the sense data.

For Parallel SCSI disk drives, the drive also returns CHECK CONDITION status for a REQUEST SENSE command to report errors specific to the command when an unrecovered parity error is detected on the data bus.

Note that any of the previous conditions overwrites the current sense data with the sense data describing the error encountered by the REQUEST SENSE command (that is, for the condition stated in the first bulleted entry, the new sense data reflects that a non-zero reserved bit was detected in the Command Descriptor Block).

The drive returns a maximum of 18 bytes of sense data. The initiator should set the Allocation Length field in the Command Descriptor Block to 18 to receive all sense data. If the Allocation Length is set to 0, four bytes of data will be returned (this option maintains compatibility with SCSI-1 systems).

5.32.3Sense Data Format for Error Code 70h and Error Code 71h

The sense data format for error code 70h (current error) and error code 71h (deferred error) is shown in Table 5-168; the data fields are defined in Table 5-169. The Supported Sense Keys are described in Table 5-170 and the field contents in Table 5-

171.The Supported Additional Sense Codes and Sense Code Qualifiers are described in Table 5-172 and the Sense-Key Specific Field Contents in Table 5-173.

Table 5-168Sense Data Format for Error Code 70h or 71h-Data Format

Bit	7	6	5		4		3		2	1	0
Byte
0	Valid				Error	Code (70h or		71h)
1					Segment Number = 00h
2	FileMrk	EOM	ILI		Rsvd				Sense Key
	= 0	= 0
3 - 6					Information
7				Additional Sense Length = 0Ah
8 - 11				Command-Specific Information
12					Additional Sense Code
13				Additional Sense Code Qualifier
14				Field Replaceable Unit Code
15	SKSV				Sense-Key Specific
16 - 17				Sense-Key Specific (continued)

Maxtor Atlas 10K V 5-115