Hitachi T7K250 - Deskstar - Hard Drive Specifications page 183

Sector Number (HOB=1) LBA (31:24) of the address of the first unrecoverable error.
Cylinder Low (HOB=1)LBA (39:32) of the address of the first unrecoverable error.
Cylinder Low (HOB=0)LBA (23:16) of the address of the first unrecoverable error.
Cylinder High (HOB=0) LBA (23:16) of the address of the first unrecoverable error.
Cylinder High (HOB=1) LBA (47:40) of the address of the first unrecoverable error.
CCTO (Error, bit 0) CCTO bit shall be set to one if a Command Completion Time Limit Out error has occurred.
SE (Status, bit 5)
DWE (Status, bit 4)
SE (Stream Error) shall be set to one if an error has occurred during the execution of the
command and the RC bit is set to one, In this case the LBA returned in the Sector Number
registers shall be the address of the first sector in error, and the Sector Count registers shall
contain the number of consecutive sectors that may contain errors. If the RC bit is set to
one when the command is issued and ICRC, UNC, IDNF, ABRT, or CCTO error occurs,
the SE bit shall be set to one, the ERR bit shall be cleared to zero, and the bits that would
normally be set in the Error register shall be set in the error log.
DWE (Deferred Write Error) shall be set to one if an error was detected in a deferred write
to the media for a previous Write Stream DMA or Write Stream PIO command. This error
is from a previously issued command. If DWE is set to one, the location of the deferred
error is only reported in the Write Stream error log.
Deskstar T7K250 Hard Disk Drive Specification
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