Defect And Error Management; Drive Internal Defects/Errors - Seagate ST15150N - Barracuda 4.3 GB Hard Drive Product Manual

ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D
9.0
9.1

Defect and error management

The drive, as delivered, complies with this Product Manual. The read error
rates and specified storage capacities are not dependent on using defect
management routines by the host (initiator).
Defect and error management in the SCSI system involves the drive internal
defect/error management and SCSI system error considerations (errors in
communications between the initiator and the drive). Tools for designing a
defect/error management plan are briefly outlined in this section. References
to other sections are provided when necessary.

Drive internal defects/errors

Identified defects are recorded on the drive's defects list (referred to as the
primary or ETF defect list). These known defects are reallocated during the
initial drive format operation at the factory. (See Format Unit command
Section 5.2.1.2 in the SCSI-2 Interface Product Manual, part number
77738479.) Data correction by ECC recovers data from additional flaws if
they occur.
Details of the SCSI commands supported by the drive are described in the
SCSI-2 Interface Product Manual. Also, more information on the drive Error
Recovery philosophy is presented in Section 6 of the SCSI-2 Interface
Product Manual.
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