User Guide

Ampex 1308911-02 B-5
Device Special Files Introduction
Table B-4. AIX Device Special Files Default Actions
Device Special File Interface Parameter Setting and Action Performed
Default Actions on Open
/dev/rmt*.0
/dev/rmt*.1
/dev/rmt*.2
/dev/rmt*.4
/dev/rmt*.5
/dev/rmt*.6
/dev/rmt*.8
/dev/rmt*.9
/dev/rmt*.10
/dev/rmt*.12
/dev/rmt*.13
/dev/rmt*.14
DST_SBLK_SIZE —
On
Implements the user-defined block size on open. This is the block size specified in
the device special file configuration file.
DST_NO_OPN_CMD — Off
Clears outstanding Unit Attention conditions.
DST_DEF_POS_OPN and DST_RETEN_OPN — Off
The current position is not changed.
DST_NO_RESERVE — Off
Reserves tape drive for exclusive use by initiator.
/dev/rmt*.3
/dev/rmt*.11
DST_SBLK_SIZE, DST_NO_OPN_CMD, DST_DEF_POS_OPN,
and DST_RETEN_OPN
Same as rmt*.0 above.
DST_NO_RESERVE — On
Allows multiple hosts to use tape drive concurrently.
/dev/rmt*.7
/dev/rmt*.15
DST_SBLK_SIZE, DST_DEF_POS_OPN,
and DST_RETEN_OPN
Same as rmt*.0 above.
DST_NO_OPN_CMD — On
None, but forces DST_NO_RESERVE On to allow concurrent use of tape drive by
multiple hosts and DST_SBLK_SIZE Off to retain current block size.
DST_NO_RESERVE — On
Allows multiple hosts to use tape drive concurrently.