Error Recovery Parameters

TABLE 2-9-1B ERROR RECOVERY DESCRIPTIONS (CONTINUED)

Value

Description

10h

If data transfer can be maintained, the maximum error recovery procedures available

are used. (RC=1) If an error occurs which is uncorrectable with the error correction

 

 

codes (ECC) on the media, or is uncorrectable in time to maintain data transfer, the

 

data transfer is not terminated. However, when the data transfer has completed Check

 

Condition status is reported. The sense key is set to Medium Error. the information

 

bytes give the address of the block where the first unrecovered error was detected.

 

Recovered errors are not reported.

 

 

11h

If data transfer can be maintained, retries of the read operation and CIRC are used

(layered error correction is not used). (RC=1) Only CIRC unrecovered data errors are

 

 

reported. If a CIRC unrecovered data error occurs, data transfer is not terminated.

 

However, when the data transfer has completed Check Condition status is reported.

 

The sense key is set to Medium Error. The information bytes give the address of the

 

block where the first unrecovered error was detected. Recovered errors are not

 

reported.

 

 

14h

If data transfer can be maintained, the maximum error recovery procedures available

are used. (RC = 1.) Recovered data errors are reported. If a recovered data error

 

 

occurs, data transfer is not terminated. However, when the data transfer has

 

completed Check Condition status is reported. The sense key is set to Recovered

 

Error. The information bytes give the address of the block where a recovered data

 

error was detected. If an data error occurs which is uncorrectable with the ECC

 

information available on the media, or is uncorrectable in time to maintain data

 

transfer, the data transfer is not terminated. However, when the data transfer has

 

completed Check Condition status is reported. The sense key is set to Medium Error.

 

The information bytes give the address of the block where the first uncorrectable

 

error was detected. Reporting unrecovered errors takes precedence over reporting

 

recovered errors.

 

 

15h

If data transfer can be maintained, retries of the read operation and CIRC are used

(layered error corrections not used). (RC = 1.) Recovered data errors are reported. If

 

 

a recovered data error occurs, data transfer is not terminated. However, when the data

 

transfer has completed Check Condition status is reported. The sense key is set to

 

Recovered Error. The information bytes give the address of the block where a CIRC

 

recovered data error was detected. If an unrecovered data error occurs, data transfer is

 

not terminated. However, when the data transfer has completed Check Condition

 

status is reported. The sense key is set to Medium Error. The information bytes give

 

the address of the block where the first unrecovered error was detected. Reporting

 

unrecovered errors takes precedence over reporting recovered errors.

 

 

20h

The maximum error recovery procedures available are used. If an error occurs which

is uncorrectable with the error correction codes (ECC) on the media, data transfer is

 

 

terminated with Check Condition status. The lock with the error is transferred. The

 

sense key is set to Medium Error. The information bytes give the address of the block

 

where the unrecovered error was detected. Recovered errors are not reported.

 

 

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