4-8
Menu Operations
500300 Rev. U
4.3.2.12
FEN: (Default = Required)
The IFEN (formatter enable) signal is an input to the drive. The industry standard
interface requires this signal be true before the drive will accept any interface
command; however, some early controllers do not support this interface signal line.
This option allows the 34XX Series to function with those controllers that do not
support IFEN.
•
REQUIRED
- IFEN must be low (true) for the controller to access the drive.
•
IGNORE
- The drive can be accessed regardless of the state of IFEN.
4.3.2.13
FEN ABORT: (Default = Yes)
•
YES
- IFEN will reset the drive if its low-to-high transition occurs while the
drive is executing a command.
•
NO
- A low-to-high transition of IFEN will not reset the drive.
4.3.2.14
DENSITY CMD: (Default = Yes)
This option enables the tape drive to respond to density commands from the host,
provided the controller supports remote density change commands.)
•
YES
- Enables density selection via the interface command bus if the drive is
ready, online and at BOT. Also referred to as Remote Density Select.
•
NO
- The tape drive ignores Density Select commands and generates a Data
Busy cycle (IDBY) and a hard error indication (IHER) in response to them.
NOTE
A detailed explanation of these and other interface signals can be found in the Product
Specifications (500240 and 500540).
4.3.2.15
ECHO 3200ID: (Default = Yes)
Normally, the IDENT signal is set true when a tape with an ID burst is read from
BOT. However, some early model drives did not record or report ID bursts at 3200
CPI. This option allows compatibility with those early models.
•
NO
- The 3200 CPI ID burst is not reported, allowing for system compatibility
with older drives.
•
YES
- 3200 CPI tapes with an ID burst will cause the IDENT signal to go true
upon reading from BOT.
4.3.2.16
WRT IBG: (Default = Normal)
The length of the Interblock-Gaps (IBG) written by tape drives is specified by ANSI.
Writing a longer IBG will extend the reinstruct time between blocks. This allows the
controller more time to send the next block of data, thereby improving the
