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PER
Post Error. Although this bit is changeable, the drive’s internal behavior always
corresponds to PER=0.
0 The drive does not report
CHECK CONDITION
for recovered errors. The DTE
bit must also be zero.
1 The drive reports
CHECK CONDITION
for recovered errors.
DTE
Disable Transfer on Error
0 Always set to 0, meaning that the drive will not terminate the transfer for errors
recovered within the limits established by the read-write error parameters.
DCR
Disable Correction
0 Always set to 0, meaning that the use of error correction codes for error
recovery is allowed.
Read Retry Count
The number of times the drive will attempt its recovery algorithm during a read
operation before reporting an unrecoverable error.
0 The drive will not use its recovery algorithm during read operations.
15h The drive will attempt 21 retries.
Write Retry Count
The number of times the drive will attempt its recovery algorithm during a write
operation before reporting an unrecoverable error.
0 The drive will not use its recovery algorithm during read operations.
0Ah The value for all Ultrium drives, giving 10 retries.