![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to dkbad.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Net/2] / Net2 / sys|
Return to dkbad.h CVS log | Up to [Net/2] / Net2 / sys |
1.1 root 1: /*-
2: * Copyright (c) 1982, 1986 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
33: * @(#)dkbad.h 7.2 (Berkeley) 2/15/91
34: */
35:
36: /*
37: * Definitions needed to perform bad sector revectoring ala DEC STD 144.
38: *
39: * The bad sector information is located in the first 5 even numbered
40: * sectors of the last track of the disk pack. There are five identical
41: * copies of the information, described by the dkbad structure.
42: *
43: * Replacement sectors are allocated starting with the first sector before
44: * the bad sector information and working backwards towards the beginning of
45: * the disk. A maximum of 126 bad sectors are supported. The position of
46: * the bad sector in the bad sector table determines which replacement sector
47: * it corresponds to.
48: *
49: * The bad sector information and replacement sectors are conventionally
50: * only accessible through the 'c' file system partition of the disk. If
51: * that partition is used for a file system, the user is responsible for
52: * making sure that it does not overlap the bad sector information or any
53: * replacement sectors.
54: */
55: struct dkbad {
56: long bt_csn; /* cartridge serial number */
57: u_short bt_mbz; /* unused; should be 0 */
58: u_short bt_flag; /* -1 => alignment cartridge */
59: struct bt_bad {
60: u_short bt_cyl; /* cylinder number of bad sector */
61: u_short bt_trksec; /* track and sector number */
62: } bt_bad[126];
63: };
64:
65: #define ECC 0
66: #define SSE 1
67: #define BSE 2
68: #define CONT 3
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.