Fujitsu M2488, Руководство по эксплуатации продукта

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M2488 PRODUCT GUIDE TAPE UNIT PARAMETERS
April 1997 CG00000-011503 REV. A 5-3
3 2 1
0
When the FRU bit is set to one, the Diagnostic Error codes listed in Appendix F are dis-
played on the op panel display.
When the FRU bit is set to zero, the Diagnostic Error codes are not displayed on the op
panel display.
The FRU bit is reported as changeable on a MODE SENSE command and the default value
is zero.
4 0-7 FEh The Automatic Data Transfer Timeout (ADTT) field indicates an automatic data transfer
timeout value in 200ms increments with 00h representing an initial 200ms timeout; i.e.,
actual_timeout = 200ms + (selected_timeout_value*200ms). For example, a value of 01h
indicates automatic data transfers will timeout in 400ms; i.e., 200ms + (1*200ms) = 400ms.
The ADTT is calculated in 200ms increments for values of 00h to FEh in the ADTT field.
The ADTT value of FFh indicates a timeout of 2 minutes.
If a value of 00h or 01h is set in this field (200ms or 400ms timeouts respectively), the
Retry Buffer Retries is automatically disabled.
The ADTT is active only during the data phases (DATA-IN/DATA-OUT) while transferring
data blocks between the initiator and the target using commands such as READ, READ
REVERSE, WRITE, etc. The ADTT is not active for manual data transfers such as
REQUEST SENSE DATA, LOG SENSE DATA, MODE SENSE DATA, etc.
The ADTT field is reported as changeable on a MODE SENSE command and the default
value is FEh.
Table 5-3. Page 00 -Vendor Unique Parameter Field Description (Continued)
BYTE BIT VALUE DESCRIPTION