User Guide

B-2 Ampex 1308911-02
Model No.
Running Head
Introduction Device Special Files
Table B-1. AIX Device Special File Default Interface Parameters Settings
Parameter
Bit Location
Device Special File
1
00 01
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
10 11 12 13 14 15
DST_NO_REWIND (0x0000001) – ✔ – ✔ – ✔✔✔– ✔ – ✔ – ✔✔✔
DST_NO_FM (0x0000002) – – ✔✔––✔✔––✔✔––✔✔
DST_NO_RESERVE (0x0000004) – – – ✔ –––✔ –––✔ –––✔
DST_NO_FLUSH (0x0000008) – – – ✔ – ✔ – ✔ –––✔ – ✔ – ✔
DST_NO_OPN_CMD (0x0000010) – ––––––✔ –––––––✔
DST_SBLK_SIZE (0x0000020) ✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔
DST_RETEN_OPN (0x0000040) – –––––––––––––––
DST_SPC_FWD (0x0000080) – –––––––––––––––
DST_APPEND_ONLY (0x0000100) – –––––––––––––––
DST_DEF_POS_OPN (0x0000400) – –––––––––––––––
DST_NO_REFORMAT (0x0000800) – –––––––––––––––
DST_SYNC_WRITE (0x0001000)
****************
DST_ZERO_ON_FM (0x0002000) – –––––––✔✔✔✔✔✔✔✔
DST_ZERO_ON_EW (0x0004000) – –––––––✔✔✔✔✔✔✔✔
DST_IGN_FM 0x0008000) – –––––––––––––––
DST_OPEN_RDONLY (0x0010000)
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1 The symbols shown in this table indicate the following:
✔ Indicates the parameter is set to on.
– Indicates the parameter is set to off.
* Indicates the parameter is a reportable value that is not affected by the bit mask
specified in the configuration file. See the DST/DIS Software Installation Guide for IBM AIX
Operating Systems for information on how the states of these parameters are changed.
To retrieve the current states of the parameters, use the DSTIOCTOP/DST_GETPARAM ioctl.