Fujitsu M2488 manual 10h Device Configuration Parameters Field Description

M2488 PRODUCT GUIDE					TAPE UNIT PARAMETERS
		Table 5-13.		Page 10h - Device Configuration Parameters Field Description (Continued)
	BYTE		BIT	VALUE	DESCRIPTION
	8		2-3	01b	When set to 00b, the Stop On Consecutive Filemarks (SOCF) field indicates the
					device pre-read data from the medium in Buffered Mode to the limits of the buffer
					capacity without regard for filemarks. This implies the device can differentiate
					between data blocks and filemarks in the buffer. Values 01b, 10b, and 11b specify
					the device terminates the pre-read operation if 1, 2, or 3 consecutive filemarks are
					detected, respectively.
					The SOCF field is reported as changeable on a MODE SENSE command, and the
					default value is 01b.
	8		4	0	When set to zero, the Automatic Velocity Control (AVC) bit indicates that the device
					speed chosen will be the device’s internally selected speed.
					The AVC bit is reported as not changeable on a MODE SENSE command, and the
					default value is zero.
	8		6	1	When set to one, the Block Identifiers Supported (BIS) bit indicates that the format
					on the medium has recorded information about the logical block ID relative to a par-
					tition.
					The BIS bit is reported as not changeable on a MODE SENSE command, and the
					default value is one.
	8		7	1	When set to one, the Data Buffer Recovery (DBR) bit indicates that the target sup-
					ports data buffer recovery using the RECOVER BUFFERED DATA command.
					The DBR bit is reported as not changeable on a MODE SENSE command, and the
					default value is one.
	9		0-7	00h	The Gap Size field determines the size of the interblock gap when writing data.
					A value of 00h specifies the device’s defined gap size.
					This field is reported as not changeable on a MODE SENSE command, and the
					default value is zero.
	10		3	1	When set to one, the Synchronize at Early Warning (SEW) bit indicates the target
					causes any buffered write data and filemarks to be transferred to the medium when
					EOM early-warning is encountered.
					This field is reported as not changeable on a MODE SENSE command, and the
					default value is one.
	10		4	0	When set to zero, the Enable EOD Generation (EEG) bit indicates that EOD genera-
					tion is disabled in the logical unit.
					The EEG bit is reported as not changeable on a MODE SENSE command, and the
					default value is zero.
	10		5-7	000b	The End-of-Data (EOD) Defined field indicates which format type the logical unit
					uses to detect and generate the EOD area.
					A value of 000b in this field indicates the logical unit will use its own default EOD
					definition.
					The EOD Defined field is reported as not changeable on a MODE SENSE com-
					mand, and the default value is zero.

April 1997 CG00000-011503 REV. A 5-13