IBM IC35L036UWDY10 Hard Drive Specifications - Page 127

Mode C Informational Exceptions Control, Report Count, Interval Timer, Method of Reporting

Page 127 highlights

8.8.13 Mode Page 1C (Informational Exceptions Control) BIT Byte 7 6 5 4 3 2 1 0 0 PS RSVD=0 Page Code = 1Ch 1 Page Length = 0Ah 2 [PERF] RSVD [EBF] EWASC DEXCPT TEST RSVD [LOGERR] 3 Reserved 4 (MSB) 5 6 7 Method of Reporting Interval Timer (LSB) 8 (MSB) 9 10 11 Report Count (LSB) Default 9Ch 0Ah 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h Figure 103. Page 1C (Informational Exceptions Control) ! LOGERR (Log Errors) is ignored. ! EWASC (Enable Warning ASC) of one enables Temperature Warning (sense key 01h, additional sense code 0Bh, and additional sense code qualifier 01h) when the temperature reading exceeds Temperature Threshold (Mode Page 0). The reporting is controlled by DEXCPT and Method of Reporting. EWASC of zero disables Temperature Warning. ! DEXCPT (Disable Exception Control) of one disables all information exception operations. DEXCPT of zero enables information exception operations. The reporting of information exception conditions when DEXCPT bit is set to zero is determined by Method of Reporting. ! TEST of one instructs the drive to generate false information exception at the next interval time, as determined by Interval Timer if DEXCPT is set to zero. Method of Reporting and Report Count would also apply. The false drive failure is reported with an additional sense qualifier of FFh. TEST of zero instructs the drive to stop generating false information exception. ! EBF (Enable Background Function) is ignored. ! PERF (Performance) is ignored. ! Method of Reporting indicates the methods used by the drive to report informational exception conditions. Code Description 0h No reporting of informational exception condition: This method instructs the drive to not report informational exception condition. 1h Asynchronous event reporting: Not supported. 2h Generate unit attention: This method instructs the drive to report informational exception conditions by returning a CHECK CONDITION status on any command. The sense key Ultrastar 146Z10 hard disk drive specifications 111

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8.8.13 Mode Page 1C (Informational Exceptions Control)
00h
11
00h
10
00h
9
00h
(MSB)
Report Count
(LSB)
8
00h
7
00h
6
00h
5
00h
(MSB)
Interval Timer
(LSB)
4
00h
Method of Reporting
Reserved
3
00h
[LOGERR]
RSVD
TEST
DEXCPT
EWASC
[EBF]
RSVD
[PERF]
2
0Ah
Page Length = 0Ah
1
9Ch
Page Code = 1Ch
RSVD=0
PS
0
0
1
2
3
4
5
6
7
Default
BIT
Byte
Figure 103. Page 1C (Informational Exceptions Control)
!
LOGERR
(Log Errors) is ignored.
!
EWASC
(Enable Warning ASC) of one enables Temperature Warning (sense key 01h, additional
sense code 0Bh, and additional sense code qualifier 01h) when the temperature reading exceeds
Temperature Threshold (Mode Page 0). The reporting is controlled by DEXCPT and Method of
Reporting. EWASC of zero disables Temperature Warning.
!
DEXCPT
(Disable Exception Control) of one disables all information exception operations. DEXCPT of
zero enables information exception operations. The reporting of information exception conditions
when DEXCPT bit is set to zero is determined by Method of Reporting.
!
TEST
of one instructs the drive to generate false information exception at the next interval time, as
determined by Interval Timer if DEXCPT is set to zero. Method of Reporting and Report Count would
also apply. The false drive failure is reported with an additional sense qualifier of FFh. TEST of zero
instructs the drive to stop generating false information exception.
!
EBF
(Enable Background Function) is ignored.
!
PERF
(Performance) is ignored
.
!
Method of Reporting
indicates the methods used by the drive to report informational exception
conditions.
Code
Description
0h
No reporting of informational exception condition:
This method instructs the drive to
not report informational exception condition.
1h
Asynchronous event reporting:
Not supported.
2h
Generate unit attention:
This method instructs the drive to report informational exception
conditions by returning a CHECK CONDITION status on any command.
The sense key
Ultrastar 146Z10 hard disk drive specifications
111