Hitachi HTS541680J9AT00 Specifications - Page 123

Travelstar 5K160 (PATA) Hard Disk Drive Specification Figure 74 Extended Self-test log data structure These descriptor entries are viewed as a circular buffer. The nineteenth self-test shall create a descriptor entry that replaces descriptor entry 1. The next self-test after that shall create a descriptor entry that replaces descriptor entry 2, etc. All unused self-test descriptors shall be filled with zeros 14.15.3.1 Self-test log data structure revision number The value of this revision number shall be 01h. 14.15.3.2 Self-test descriptor index This indicates the most recent self-test descriptor. If there have been no self-tests, this is set to zero. Valid values for the Self-test descriptor index are 0 to 18. 14.15.3.3 Extended Self-test log descriptor entry The content of the self-test descriptor entry is shown below. Description Self-test number Self-test execution status Power-on life timestamp in hours Self-test failure check point Failing LBA (7:0) Failing LBA (15:8) Failing LBA (23:16) Failing LBA (31:24) Failing LBA (39:32) Failing LBA (47:40) Vendor specific Figure 75 Extended Self-test log descriptor entry Bytes 1 1 2 1 1 1 1 1 1 1 15 26 Offset 00h 01h 02h 04h 05h 06h 07h 08h 09h 0Ah 0Bh 123/188