Seagate ST15150N Product Manual - Page 55
Defect and error management
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ST15150N/ND/W/WD/WC/DC Product Manual, Rev. D 45 9.0 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. 9.1 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.