| Table | ||
|
|
| |
Field | Default | Description | |
Value | |||
|
| ||
|
|
| |
PS | 1 | Parameters Savable. This bit is only used with the MODE SENSE command. A returned val- | |
ue of 1 indicates that the target is capable of saving the page in a | |||
|
| location. The bit is reserved with the MODE SELECT command. | |
|
| Automatic Write Reallocation Enable. When the value is 1, it causes the drive to automati- | |
|
| cally reallocate bad sectors encountered during a write operation. If it succeeds in replacing | |
AWRE | 1 | the bad sector, the drive adds the revectored sector’s Logical Block Number to the Grown | |
Defect List. | |||
|
| When AWRE is 0, the drive does not automatically reallocate bad sectors encountered during | |
|
| a write operation. | |
|
| Automatic Read Reallocation Enable. When the value is 1, it causes the drive to automatical- | |
|
| ly reallocate bad sectors encountered during a read operation. If it succeeds in replacing the | |
|
| bad sector, the drive adds the revectored sector’s Logical Block Number to the Grown Defect | |
ARRE | 1 | List. Reallocation is done only when the drive is able to recover the sector’s data unless the | |
Reallocate Uncorrected Errors bit of the Maxtor (Vendor) Special Function Control Page is | |||
|
| set. | |
|
| When ARRE is 0, the drive does not automatically reallocate bad sectors encountered during | |
|
| a read operation. See also | |
|
| Transfer Block. When the value is 1, the drive sends | |
TB | 0 | when it encounters a defective sector whose data cannot be fully recovered. | |
| |||
|
| When the value is 0, data that cannot be fully recovered is not returned to the initiator. | |
|
|
| |
RC | 0 | Read Continuous. When the value is 0, the drive attempts error recovery when it encounters | |
an error. When the value is 1, the drive suppresses error recovery. The drive ignores any val- | |||
|
| ue placed in this field. | |
EER | 0 | Enable Early Recovery. Not supported by the drive. | |
|
|
| |
|
| Post Error Recovery. When the value is 0, the drive returns a GOOD status in cases where | |
PER | 0 | error recovery is invoked and successful. | |
When the value is 1, the drive returns a CHECK CONDITION status for recovered errors, | |||
|
| ||
|
| sets the sense key to RECOVERED ERROR, and posts the appropriate additional sense key. | |
|
|
| |
DTE | 0 | Disable Transfer on Error. Not supported by the drive. | |
|
|
| |
|
| Disable Correction. When the value is 0, ECC correction is applied as a means of recovering | |
|
| erred data. On write operations, a valid ECC is written to each data sector regardless of the | |
DCR | 0 | value in the DCR bit. | |
| |||
|
| When the value is 1, Firmware ECC correction only is disabled (but not retries or reads), and | |
|
| ECC errors greater than hardware correctable cannot be corrected. | |
Read Retry | 4 | Specifies the number of retries attempted for a failed read operation. | |
Count | |||
|
| ||
|
| Specifies the maximum number of bits in a data sector that the drive is allowed to correct. A | |
Correction |
| value less than the default value can cause an otherwise correctable error to be reported as | |
240 | uncorrectable. If the initiator specifies a value larger than the default value, the drive auto- | ||
Span | |||
| matically rounds down the number to the default value. A value of 0 causes the drive to use | ||
|
| ||
|
| the default value. The drive ignores any value placed in this field. | |
|
|
| |
Head Offset | 0 | Not supported by the drive. | |
Count | |||
|
| ||
Data Strobe | 0 | Not supported by the drive. | |
Offset Count | |||
|
| ||
Write Retry | 8 | Specifies the number of retries attempted for a failed write operation. | |
Count | |||
|
| ||