Table 195. Actual Retry Count - Hitachi HUS151473VL3800 - Ultrastar 73.4 GB Hard Drive Specifications

21.2.10.2 Sense Key Specific - Recovered (Sense Key = 1h) or Medium (Sense Key = 3h) or Hard-
ware (Sense Key =4h)
Hardware (Sense Key = 4h) or Medium Error (Sense Key = 3h)
Actual Retry Count is reported.
Table 195:
Actual Retry Count
Byte
7
15 SKSV
16
17
SKSV
Actual Retry Count
Secondary Step
ERP Type
Recovery Type
Read
Verify
Write
Seek
Read, Sync Byte branch
Read, Thermal Asperity branch
Read, Minus Mod branch
Verify, Sync Byte branch
Verify, Thermal Asperity branch
Verify, Minus Mod branch
21.2.10.3 Sense Key Specific - Not Ready (Sense key = 2h)
These fields are defined for the Format unit (04h) command with the Immediate bit set to one and the Send Diagnostic (1Dh)
command with Background self-test function.
6 5
Reserved
Secondary Step
Actual Retry Count
Sense-key specific valid
0 Actual Retry Count is not valid.
1 Actual Retry Count is valid.
Number of retry steps used in attempting to recover from the error condition.
The content of these two bytes indicates:
0x04nn - nn recovery steps were used in the 'Minus Mod' branch of the recovery process,
0x02nn - nn recovery steps were used in the 'TA' branch of the recovery process,
0x01nn - nn recovery steps were used in the 'Sync Byte' branch of the recovery process.
Secondary error recovery step (valid for servo errors only).
Error recovery table branch for this error. Valid values are shown in the table below.
ERP Type
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
Bit
4 3 2
ERP Type
282
1 0