Mode Page 0 (Vendor Unique Parameters) - IBM Ultrastar 36LZX Specifications

8.8.2 Mode Page 0 (Vendor Unique Parameters)

Byte
7 6
0 PS RSVD=0
1
2 QPE
3 ASDPE Ignored
4
5 Ignored
6 IGRA AVERP
7
8 Ignore ADC
9
10
11
12
13
14 DRRT
15 Ignored
Figure 82. Vendor Unique Parameters - Page 0
Fields marked in the table as 'Ignored' are not used or checked by the drive. They will be initialized to
zero but may be set as desired for compatibility with older drives.
Ÿ QPE (Qualify Post Error) bit allows the Initiator to inhibit the reporting of recovered data errors which
are recovered under Data Recovery Procedure (DRP) step. A QPE bit of zero causes the Target to
report all recovered data errors. A QPE bit of one causes the Target to report only those recovered
data errors which exceed the QPE threshold.
Ÿ UAI (Unit Attention Inhibit) bit is not used during normal operation when the UAI jumper is removed
from the drive. It may however be changed by the user with no effects. If the UAI jumper is added to
the drive, then this bit controls the generation of unit attention conditions.
Ÿ MRG (Merge G-List into P-List) bit is set to 1 for merging the Grown Defect List (G-List) entries into
the Primary Defect List (P-List) during Format Unit command.
Ÿ ARHES (Automatic Reassign Hard Error Sites) bit of one indicates that the drive will automatically
reassign a hard read error. When the ARHES bit is active, the LBA with an unrecovered read error is
internally registered as a reassign candidate and, when the write command is received to the failing
LBA, the data is written and verified if the error still exists. If the error still occurs on the failing LBA,
it will be reassigned. If the error is cleared, the Target will remove the reassign candidate internally
for the previously failing LBA. ARHES bit of zero indicates the drive will not automatically recover a
Bit
5 4
Page Code = 00h
Page Length = 0Eh
Ignored UAI
CMDAC
Ignored
FDD
Ignored
Ignored
Ignored
Temperature
Command Aging Limit (Hi byte)
Command Aging Limit (Low byte)
QPE Read Threshold
QPE Write Threshold
Ignored
FCERT
Ultrastar 36LZX hard disk drive specifications
3 2 1
MRG Ignored
Ignored RRNDE
Ignored CAEN
EQuiet
LED Mode
FFMT Ignored
Ignored IRT
97
Default
0
80h
0Eh
ARHES 51h
CPE 21h
00h
Ignored 12h
Ignored 00h
00h
40h
00h
00h
30h
0Ah
0Ah
00h
IVR 00h