Fujitsu M2488, Руководство по эксплуатации продукта

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TAPE UNIT PARAMETERS M2488 PRODUCT GUIDE
5-6 CG00000-011503 REV. A April 1997
Table 5-6 summarizes the valid modes of operation for the bits in byte 2 as described previously.
Table 5-6. Valid Combinations of Error Recovery Parameters
EER PER DTE DCR DESCRIPTION
1 0 0 0 Correction, then retries are attempted. Recovered and/or corrected data (if any) is
transferred without the ending portion of the transfer. This is the default setting.
- Transfer Length is exhausted. Data transfer stops only if an unrecoverable error is
encountered. The target then creates CHECK CONDITION status with the appropri-
ate Sense Key. The data of the unrecoverable Block (if any), may not be transferred to
the initiator depending on the setting of the TB bit.
1 0 1 0 Invalid Request (DTE on, PER off).
1 1 0 0 Correction, then retries are attempted. Report Last Data Block in error at the end of
transfer. Recovered data (if any) is transferred corrected.
- The Transfer Length is exhausted if no unrecoverable error occurred (DTE off).
- The target creates CHECK CONDITION status with RECOVERED ERROR Sense
Key and reports (in the Information bytes field of the Extended Sense data) the last
block for which recovered error occurred, if any. (PER on). The data of the unrecov-
erable Block (if any), may or may not be transferred to the initiator depending on the
setting of the TB bit.
1 1 1 0 Correction, then retries are attempted. Stop Transfer on First Recovered Error
Encountered. Recovered data is transferred. Check status with Recovered Error sense
key is set following transfer of the recovered or corrected block.