Sense Data; 8-3.1 Error Code Sense Format; Table 8-1. Error Code 70 - Sense Format (On Current Command) - Fujitsu M2488 Product Manual

MAINTENANCE AND SERVICING
8-3

SENSE DATA

The sense bytes, contained in the controller, indicate error, status, and statistical information about the
controller or the drive. Error information is set in the sense bytes when the CHECK CONDITION status
is reported as a completion status. The sense bytes are transmitted to an initiator by the REQUEST
SENSE command.
8-3.1 Error Code Sense Format
An Error Code (EC) of 70h (sense byte 0 of 70h or F0h) indicates that the CHECK CONDITION sta-
tus returned is a result of an error or exception condition on the command that returned the CHECK
CONDITION status.
Error code 71h (sense byte 0 of 71h or F1h) indicates the CHECK CONDITION status returned is the
result of an error or exception condition not related to the command that returned the CHECK CON-
DITION STATUS (i.e., deferred error). After detecting a deferred error condition on a logical unit,
the controller reports CHECK CONDITION status to the next initiator attempting to access that log-
ical unit.
The following tables and text define the sense data and log data returned to the initiator in the data
phase of the REQUEST SENSE command.

Table 8-1. Error Code 70 - Sense Format (on current command)

BYTES 7
0 Valid
1
2
FMark
3-6
7
8-11
12
13
14
15
SKSV
MSB
16-
17
18
19
20-43
8-4
6 5 4
1 1 1
Segment Number (00h)
EOM ILI Rsvd
Information Bytes
Additional Sense Length = 24h
00000000h (SCSI-2 Command Specific Information Bytes)
Additional Sense Code
Additional Sense Code Qualifier
FRU Code (00h)
C/D Rsvd Rsvd
Field Pointer
Format of additional sense
Host ERPA
Additional Sense Bytes as Defined by the Format Indicated in Byte 18.
CG00000-011503 REV. A
M2488 PRODUCT GUIDE
BITS
3 2 1
0 0 0
Sense Key
BPV Bit Pointer
0
0
LSB
April 1997