Hitachi ULTRASTAR 15K450 HUS154530VLF400 - Manual (Page 352)

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
336
ground mode as previously described.
Table 262: Short and Extended Self-Test Description
21.18.2.4 Background Medium Scan
For a related function, see Mode Page 1C (Informational Exceptions Control), page 193
Segment
Number
Short Self-
Test Extended
Self-Test Test Description
1h Drive Ready Test Internal check to insure drive is “ready”, similar to a Test
Unit Ready command.
2h Drive Diagnostics This test is comprised of the Default Self Test as defined
in Section 21.18.2.1, “Default Self-test” on page 334
3h SMART Perform SMART testing and check results to ensure that
SMART threshold criteria are not exceeded
4h Low Level Format check Check to insure that the media is currently not in the
MEDIA FORMAT CORRUPTED state.
5h Physical Head Check Write/Read test on each head in a predefined location in
the drive's Reserved Area of the disk.
6h Random Verify Perform 4000 random verify operations and insure no
uncorrectable errors.
7h - Verify First
300MB
- Verify Last
100 MB
Verify all
LBA’s Sequential verify operation. Ensure that no uncorrect-
able errors occur within the verify range.
8h Recheck SMART Same as segment 3h.