Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
191
18.10.14
Mode Page 1C (Informational Exceptions Control)
Table 157 Page 1C (Informational Exceptions Control)
Byte
Bit
Default
7
6
5
4
3
2
1
0
0
PS 0 Page Code = 1Ch
9Ch
1
Page Length = 0Ah
0Ah
2
PERF RSVD EBF EWASC DEXCPT TEST
EBACK
ERR
LOGERR 10h
3
Reserved = 0 Method of Reporting
03h
4-7
(MSB)
Interval Timer
(LSB)
00h
00h
00h
00h
8-11
(MSB)
Report Count
(LSB)
00h
- PERF (Performance) bit is not supported and is ignored. Informational Exception operations will not cause
performance delays.
- EBF (Enable Background Function) bit is not supported and is ignored. Background functions are always
enabled.
- EWASC (Enable Warning ASC) bit of zero indicates that Temperature Warnings will not be reported. An
EWASC bit of one allows Temperature Warnings to be reported, if the temperature inside the disk enclosure
exceeds the threshold set in Mode Page 00h.The Method of Reporting field controls the reporting method.
EWASC is independent of DEXCPT.
- DEXCPT (Disable Exception Control) bit of zero indicates information exception operations are enabled. The
reporting of information exception conditions when the DEXCPT bit is set to zero is determined from the Method
of Reporting field. A DEXCPT bit of one indicates the Target disabled all information exception operations.
- TEST bit of one instructs the drive to generate false drive notifications at the next interval time, (as determined
by the INTERVAL TIMER field), if the DEXCPT is zero. The Method of Reporting and Report Count would
apply. The false drive failure is reported as sense qualifier 5DFFh. The TEST bit of zero instructs the drive to
stop generating any false drive notifications.
- Enable Background Error (EBACKERR) bit of zero disables reporting of background self-test errors and
background scan errors via Information Exceptions Control. An EBACKERR bit of one enables reporting of
these background errors as Information Exception Warnings. The method of reporting these errors is
determined from the MRIE field.
- LOGERR (Log Errors) is not used and ignored internally by the Target.
- Method of Reporting Informational Exceptions indicates the methods used by the Target to report informational
exception conditions.
-