User Guide

Ampex 1308911-02 B-7
Device Special Files Introduction
Default Actions While Open (Continued)
/dev/rmt*.8
/dev/rmt*.9
/dev/rmt*.10
/dev/rmt*.12
/dev/rmt*.14
DST_APPEND_ONLY
, DST_NO_REFORMAT, DST_IGN_FM, and DST_NO_FLUSH
Same as rmt*.0 above.
DST_ZERO_ON_FM — On
When a filemark is detected during a read operation, returns the number of bytes
read and sets the current position to after the filemark. If this parameter is set to on
and some data was read before the filemark was detected, the next read operation
reports zero bytes.
Note: The application can recognize the filemark detected by retrieving and
diagnosing the Request Sense data.
DST_ZERO_ON_EW — On
When Early Warning is detected during a write, flushes tape drive buffer to tape
and reports zero bytes.
/dev/rmt*.11
/dev/rmt*.13
/dev/rmt*.15
DST_APPEND_ONLY, DST_NO_REFORMAT, and DST_IGN_FM,
Same as rmt*.0 above.
DST_NO_FLUSH - On
Filemarks written to tape are buffered.
DST_ZERO_ON_FM — On
When a filemark is detected during a read operation, returns the number of bytes
read and sets the current position to after the filemark. If this parameter is set to on
and some data was read before the filemark was detected, the next read operation
reports zero bytes.
Note: The application can recognize the filemark detected by retrieving and
diagnosing the Request Sense data.
DST_ZERO_ON_EW — On
When Early Warning is detected during a write, flushes tape drive buffer to tape
and reports zero bytes.
Table B-4. AIX Device Special Files Default Actions (Continued)
Device Special File Interface Parameter Setting and Action Performed