Toshiba Tecra M2 Maintenance Manual - Page 144
Tests and Diagnostics, Hard Disk Test, Sequential write
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3 Tests and Diagnostics 3.11 Hard Disk Test Subtest 04 Cross talk & peak shift This subtest writes eight types of worst pattern data (listed below) to a cylinder, then reads the data while moving from cylinder to cylinder. Worst pattern data 'B5ADAD' '4A5252' 'EB6DB6' '149249' '63B63B' '9C49C4' '2DB6DB' 'D24924' Cylinder 0 cylinder 1 cylinder 2 cylinder 3 cylinder 4 cylinder 5 cylinder 6 cylinder 7 cylinder Subtest 06 Subtest 07 Subtest 09 Subtest 10 Write specified address This subtest writes specified data to a specified cylinder and head on the HDD. Read specified address This subtest reads data that has been written to a specified cylinder and head on the HDD. Sequential write This subtest writes specified 2-byte data to all of the cylinders on the HDD. W-R-C specified address This subtest writes data to a specified cylinder and head on the HDD, then reads the data and compares it to the original data. 3-30 TECRA M2 Maintenance Manual (960-468)