Table 189. Sense Data Combinations With Auto/Recommend Rewrite/Reallocate - Hitachi HUS151473VL3800 - Ultrastar 73.4 GB Hard Drive Specifications

Following is a description of the target behavior for each setting of AWRE. AWRE setting effects only No Sector Found Errors
on writes.
AWRE=1: An error site determined to need reassignment during a write is automatically reallocated at the conclusion
of the write and prior to sending the status. The site will be automatically reallocated only if the write recov-
ery succeeded at the conclusion of the write.
AWRE=0: An error site determined to need reassignment during a write is recommended for reassignment at the con-
clusion of the write.
The setting of the AWRE bit is checked and the target will automatically reallocate or recommend reassign for the following
commands.
• Write(6)
• Write(10)
• Write portion of Write and Verify
For all other commands the AWRE setting is ignored and the target will not automatically reallocate or recommend reassign.
Auto/Recommend Reallocate information is communicated via the sense data returned following a command during which a
site was determined to need rewriting or reassignment. The LBA returned in the sense data is the LBA that was determined to
need rewriting or reassignment.
The sense data combinations with auto/recommend rewrite/reallocate are listed below.
Table 189: Sense data combinations with auto/recommend rewrite/reallocate
Key Code Qual
1 17 01
1 17 06
1 17 07
1 17 09
1 18 00
1 18 02
1 18 05
1 18 07
Description
Recovered Data with retries
Recovered Data without ECC - Auto Reallocated
Recovered Data without ECC - Recommend Reassign
Recovered Data without ECC - Data Rewritten
Recovered Data with ECC
Recovered Data with ECC - Auto Reallocated
Recovered Data with ECC - Recommend Reassign
Recovered Data with ECC - Data Rewritten
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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