IBM DCAS-32160 - Ultrastar 2.1 GB Hard Drive, Specifications

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PER, DTE, and D C R bit settings in page 7 override those of page 1 during Verify and the Verify
portion of Write and Verify. There are only four valid conditions for the PER, DTE, and D C R bits. All
other combinations return Check Condition Status.
PER DTE DCR DESCRIPTION
0 0 0 Soft errors are not reported. ECC is applied to recover the data.
1 0 0 Soft errors are reported. ECC is applied to recover the data.
0 0 1 Soft errors are not reported. ECC is not used to recover the data.
1 0 1 Soft errors are reported. ECC is not used to recover the data.
Verify Retry Count sets a limit on the amount of verify recovery procedure(VRP) passes the Target
attempts when recovering verify errors. The Verify Retry Count of one causes the Target to attempt up
to one V R P pass per command when a medium error occurs during a verify operation. Only values of
0h and 01h are valid. The value of 0h disables all recovery.
Verify Correction Span field specifies the size, in bits, of the largest data error burst for which data error
correction may be attempted. The field may be set to any value but the file will not use offline correction
during verify operations.
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O E M Spec. of DCAS-34330/32160