IBM Ultrastar 36LZX, Технические характеристики

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8.8.3 Mode Page 1 (Read/Write Error Recovery Parameters)
00h 11
00h
(MSB)
Recovery Time Limit
(LSB)
10
00h Reserved 9
01h Write Retry Count 8
00h Reserved 7
00h Data Strobe Offset Count (Ignored) 6
00h Head Offset Count (Ignored) 5
00h Correction Span 4
01h Read Retry Count 3
C0h DCR DTE PER EER=0 RC TB ARRE AWRE 2
0Ah Page Length = 0Ah 1
81h Page Code = 01h RSVD=0 PS 0
0 1 2 3 4 5 6 7
Default
Bit
Byte
Figure 83. Mode Page 1 (Vendor Unique Parameters )
The Read-Write recovery parameters that will be used during any command that performs a read or
write operation to the medium are as follows:
Ÿ
AWRE , an Automatic Write Reallocation Enabled bit, set to zero indicates that the drive shall not
perform automatic reallocation of defective data blocks during write operations. An AWRE bit set to
one indicates that the drive shall perform automatic reallocation of defective data blocks during write
operations.
Ÿ
ARRE , an Automatic Read Reallocation Enabled bit, set to zero indicates that the drive shall not
perform automatic reallocation of defective data blocks during read operations. A ARRE bit set to
one indicates that the drive shall perform automatic reallocation of defective data blocks during read
operations.
Ÿ
TB , a Transfer Block bit, set to one indicates that a data block that is not recovered within the recov-
ery limits specified shall be transferred to the initiator before CHECK CONDITION status is returned.
A TB bit set to zero indicates that such a data block shall not be transferred to the initiator. Data
blocks that can be recovered within the recovery limits are always transferred regardless of the value
of the bit.
Ÿ
RC , a Read Continuous bit, set to one requests the Target to transfer the entire requested length of
data without adding delays which would increase or ensure data integrity. This implies that the Target
may send erroneous data. This bit has priority over all other error control bits (PER, DTE, DCR, TB).
RC set to zero indicates normal interpretation of PER, DTE, DCR, and TB values. The RC bit setting
is used by the Target when reporting errors associated with the transfer of the Initiator's data for the
following commands:
- Read(6)
- Read(10)
Ultrastar 36LZX hard disk drive specifications
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