Fujitsu M2488, Руководство по эксплуатации продукта

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M2488 PRODUCT GUIDE TAPE UNIT PARAMETERS
April 1997 CG00000-011503 REV. A 5-9
5-2.5 Common Device-Type Control Parameters
** NOTE **
The only field that may be modified in this page is the RLEC bit. On a
MODE SELECT command, all other fields must be zero. On a MODE
SENSE command, only the RLEC field is reported as changeable.
Table 5-10. Page 0Ah - Common Device-type Control Parameters
BITS MODE
SENSE
DEFAULT
VALUES
BYTES 7 6 5 4 3 2 1 0
0 PS * Reserved Page Code 8Ah
1 Additional Page Length 06h
2 Reserved RLEC 01h
3 Queue Algorithm Modifier Reserved QErr DQue 01h
4 EECA Reserved RAENP UAAENP EAENP 00h
5 Reserved 00h
6-7 Ready AEN Holdoff Period (0-0FFFFh microsecond) 0000h
* The PS bit must be set to 0 on a MODE SELECT command.
Note: Changeable fields in the page are shaded.
Table 5-11. Page 0Ah - Common Device-type Control Parameters Field Description
BYTE BIT VALUE DESCRIPTION
2 1 1
0
When set to one, the Report Log Exception Condition (RLEC) bit indicates that the
target reports log overflow conditions.
When set to zero, this bit indicates that log overflow conditions are not reported.
The RLEC bit is reported as changeable on a MODE SENSE command, and the
default value is one.
3 0 1 When set to one, the Disable Queuing (DQUE) bit indicates that tagged queueing
shall be disabled.
The default value reported for this field on a MODE SENSE command is one and
not changeable.
3 1 0 When set to zero, the Queue Error Management bit indicates that remaining sus-
pended I/O process shall resume after the contingent allegiance condition or
extended contingent allegiance condition.
The default value reported for this field on a MODE SENSE command is zero and
not changeable.
3 4-7 0 The Queue Algorithm Modifier field specifies restrictions on the algorithm used for
reordering commands that are tagged with the SIMPLE QUEUE TAG message.
The default value reported for this field on a MODE SENSE command is zero and
not changeable.