![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to hp.4 CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDTahoe / man / man4 / vax|
Return to hp.4 CVS log | Up to [CSRG BSD Unix] / 43BSDTahoe / man / man4 / vax |
1.1 root 1: .\" Copyright (c) 1980,1988 Regents of the University of California.
2: .\" All rights reserved. The Berkeley software License Agreement
3: .\" specifies the terms and conditions for redistribution.
4: .\"
5: .\" @(#)hp.4 6.4 (Berkeley) 6/13/88
6: .\"
7: .TH HP 4 "June 13, 1988"
8: .UC 4
9: .SH NAME
10: hp \- MASSBUS disk interface
11: .SH SYNOPSIS
12: .B "disk hp0 at mba0 drive 0"
13: .SH DESCRIPTION
14: Files with minor device numbers 0 through 7 refer to various portions
15: of drive 0;
16: minor devices 8 through 15 refer to drive 1, etc.
17: The standard device names begin with ``hp'' followed by
18: the drive number and then a letter a-h for partitions 0-7 respectively.
19: The character ? stands here for a drive number in the range 0-7.
20: .PP
21: The block file's access the disk via the system's normal
22: buffering mechanism and may be read and written without regard to
23: physical disk records. There is also a `raw' interface
24: which provides for direct transmission between the disk
25: and the user's read or write buffer.
26: A single read or write call results in exactly one I/O operation
27: and therefore raw I/O is considerably more efficient when
28: many words are transmitted. The names of the raw files
29: conventionally begin with an extra `r.'
30: .PP
31: In raw I/O counts should be a multiple of 512 bytes (a disk sector).
32: Likewise
33: .I seek
34: calls should specify a multiple of 512 bytes.
35: .PP
36: The first sector of each disk contains both a first-stage bootstrap program
37: and a disk label containing geometry information and partition layouts (see
38: .IR disklabel (5).
39: This sector is normally write-protected, and disk-to-disk copies should
40: avoid copying this sector.
41: The label may be updated with
42: .IR disklabel (8),
43: which can also be used to write-enable and write-disable the sector.
44: The next 15 sectors contain a second-stage bootstrap program.
45: .SH "DISK SUPPORT"
46: This driver handles both standard DEC controllers and Emulex
47: SC750 and SC780 controllers.
48: During autoconfiguration or whenever a drive comes on line for the first time,
49: as well as when a drive is opened after all partitions are closed,
50: the first sector of the drive is examined for a disk label.
51: If a label is found, the geometry of the drive and the partition tables
52: are taken from it.
53: If no label is found,
54: standard DEC drive types are
55: recognized according to the MASSBUS drive type register,
56: and default partitions are used.
57: For the Emulex controller the drive type register should be configured
58: to indicate the drive is an RM02. When this is encountered,
59: the driver checks the holding register to find out
60: the disk geometry and, based on this information, decides what
61: the drive type is. The following disks are supported: RM03,
62: RM05, RP06, RM80, RP05, RP07, ML11A, ML11B, CDC 9775, CDC 9730,
63: AMPEX Capricorn (32 sectors/track), FUJITSU Eagle (48 sectors/track),
64: Fujitsu 2361,
65: and AMPEX 9300. The default origin and size (in sectors) of the pseudo-disks
66: on each drive are as follows:
67: .PP
68: .nf
69: .ta .5i +\w'000000 'u +\w'000000 'u +\w'000000 'u +\w'000000 'u
70: .PP
71: RM03 partitions
72: disk start length cyls
73: hp?a 0 15884 0-99
74: hp?b 16000 33440 100-309
75: hp?c 0 131680 0-822
76: hp?d 49600 15884 309-408
77: hp?e 65440 55936 409-758
78: hp?f 121440 10080 759-822
79: hp?g 49600 82080 309-822
80: .PP
81: RM05 partitions
82: disk start length cyls
83: hp?a 0 15884 0-26
84: hp?b 16416 33440 27-81
85: hp?c 0 500384 0-822
86: hp?d 341696 15884 562-588
87: hp?e 358112 55936 589-680
88: hp?f 414048 86176 681-822
89: hp?g 341696 158528 562-822
90: hp?h 49856 291346 82-561
91: .PP
92: RP06 partitions
93: disk start length cyls
94: hp?a 0 15884 0-37
95: hp?b 15884 33440 38-117
96: hp?c 0 340670 0-814
97: hp?d 49324 15884 118-155
98: hp?e 65208 55936 156-289
99: hp?f 121220 219296 290-814
100: hp?g 49324 291192 118-814
101: .PP
102: RM80 partitions
103: disk start length cyls
104: hp?a 0 15884 0-36
105: hp?b 16058 33440 37-114
106: hp?c 0 242606 0-558
107: hp?d 49910 15884 115-151
108: hp?e 68096 55936 152-280
109: hp?f 125888 120466 281-558
110: hp?g 49910 192510 115-558
111: .PP
112: RP05 partitions
113: disk start length cyls
114: hp?a 0 15884 0-37
115: hp?b 15884 33440 38-117
116: hp?c 0 171798 0-410
117: hp?d 2242 15884 118-155
118: hp?e 65208 55936 156-289
119: hp?f 121220 50424 290-410
120: hp?g 2242 122320 118-410
121: .PP
122: RP07 partitions
123: disk start length cyls
124: hp?a 0 15884 0-9
125: hp?b 16000 66880 10-51
126: hp?c 0 1008000 0-629
127: hp?d 376000 15884 235-244
128: hp?e 392000 307200 245-436
129: hp?f 699200 308600 437-629
130: hp?g 376000 631800 235-629
131: hp?h 83200 291346 52-234
132: .PP
133: CDC 9775 partitions
134: disk start length cyls
135: hp?a 0 15884 0-12
136: hp?b 16640 66880 13-65
137: hp?c 0 1077760 0-841
138: hp?d 376320 15884 294-306
139: hp?e 392960 307200 307-546
140: hp?f 700160 377440 547-841
141: hp?g 376320 701280 294-841
142: hp?h 84480 291346 66-293
143: .PP
144: CDC 9730 partitions
145: disk start length cyls
146: hp?a 0 15884 0-49
147: hp?b 16000 33440 50-154
148: hp?c 0 263360 0-822
149: hp?d 49600 15884 155-204
150: hp?e 65600 55936 205-379
151: hp?f 121600 141600 380-822
152: hp?g 49600 213600 155-822
153: .PP
154: AMPEX Capricorn partitions
155: disk start length cyls
156: hp?a 0 15884 0-31
157: hp?b 16384 33440 32-97
158: hp?c 0 524288 0-1023
159: hp?d 342016 15884 668-699
160: hp?e 358400 55936 700-809
161: hp?f 414720 109408 810-1023
162: hp?g 342016 182112 668-1023
163: hp?h 50176 291346 98-667
164: .PP
165: FUJITSU Eagle partitions
166: disk start length cyls
167: hp?a 0 15884 0-16
168: hp?b 16320 66880 17-86
169: hp?c 0 808320 0-841
170: hp?d 375360 15884 391-407
171: hp?e 391680 55936 408-727
172: hp?f 698880 109248 728-841
173: hp?g 375360 432768 391-841
174: hp?h 83520 291346 87-390
175: .PP
176: FUJITSU 2361 partitions
177: disk start length cyls
178: hp?a 0 15884 0-12
179: hp?b 16640 66880 13-65
180: hp?c 0 1077760 0-841
181: hp?d 376320 15884 294-306
182: hp?e 392960 307200 307-546
183: hp?f 700160 377408 547-841
184: hp?g 363520 701248 294-841
185: hp?h 84480 291346 66-293
186: .PP
187: AMPEX 9300 partitions
188: disk start length cyl
189: hp?a 0 15884 0-26
190: hp?b 16416 33440 27-81
191: hp?c 0 495520 0-814
192: hp?d 341696 15884 562-588
193: hp?e 358112 55936 589-680
194: hp?f 414048 81312 681-814
195: hp?g 341696 153664 562-814
196: hp?h 49856 291346 82-561
197: .DT
198: .fi
199: .PP
200: It is unwise for all of these files to be present in one installation,
201: since there is overlap in addresses and protection becomes
202: a sticky matter.
203: The hp?a partition is normally used for the root file system,
204: the hp?b partition as a paging area,
205: and the hp?c partition for pack-pack copying (it maps the entire disk).
206: On disks larger than about 205 Megabytes, the hp?h partition
207: is inserted prior to the hp?d or hp?g partition;
208: the hp?g partition then maps the remainder of the pack.
209: All disk partition tables are calculated using the
210: .IR diskpart (8)
211: program.
212: .SH FILES
213: .ta 2i
214: /dev/hp[0-7][a-h] block files
215: .br
216: /dev/rhp[0-7][a-h] raw files
217: .SH SEE ALSO
218: up(4),
219: disklabel(5), disklabel(8)
220: .SH DIAGNOSTICS
221: \fBhp%d%c: hard error %sing fsbn %d [of %d-%d] (hp%d bn %d cn %d tn %d sn %d)
222: mbsr=%b er1=%b er2=%b\fR.
223: An unrecoverable error occurred during transfer of the specified
224: filesystem block number,
225: which is a logical block number on the indicated partition.
226: If the transfer involved multiple blocks, the block range is printed as well.
227: The parenthesized fields list the actual disk sector number
228: relative to the beginning of the drive,
229: as well as the cylinder, track and sector number of the block.
230: The MASSBUS status register is printed in hexadecimal and
231: with the error bits decoded if any error bits other than MBEXC and DTABT
232: are set. In any case the contents of the two error registers are also printed
233: in octal and symbolically with bits decoded.
234: (Note that er2 is what old RP06 manuals would call RPER3; the terminology
235: is that of the RM disks).
236: The error was either unrecoverable, or a large number of retry attempts
237: (including offset positioning and drive recalibration) could not
238: recover the error.
239: .PP
240: \fBhp%d: write locked\fR. The write protect switch was set on the drive
241: when a write was attempted. The write operation is not recoverable.
242: .PP
243: \fBhp%d: not ready\fR. The drive was spun down or off line when it was
244: accessed. The I/O operation is not recoverable.
245: .PP
246: \fBhp%d%c: soft ecc reading fsbn %d [of %d-%d] (hp%d bn %d cn %d tn %d sn %d)\fP.
247: A recoverable ECC error occurred on the
248: specified sector of the specified disk partition.
249: If the transfer involved multiple blocks, the block range is printed as well.
250: The parenthesized fields list the actual disk sector number
251: relative to the beginning of the drive,
252: as well as the cylinder, track and sector number of the block.
253: This happens normally
254: a few times a week. If it happens more frequently than
255: this the sectors where the errors are occurring should be checked to see
256: if certain cylinders on the pack, spots on the carriage of the drive
257: or heads are indicated.
258: .PP
259: During autoconfiguration one of the following messages may appear
260: on the console indicating the appropriate drive type was recognized.
261: The last message indicates the drive is of a unknown type.
262: In this case, the correct geometry is set, and one partition is created
263: that contains the entire drive.
264: .PP
265: .nf
266: .BR "hp%d: 9775 (direct)" .
267: .BR "hp%d: 9730 (direct)" .
268: .BR "hp%d: 9300" .
269: .BR "hp%d: 9762" .
270: .BR "hp%d: capricorn" .
271: .BR "hp%d: eagle" .
272: .BR "hp%d: 2361" .
273: .BR "hp%d: ntracks %d, nsectors %d: unknown device" .
274: .fi
275: .SH BUGS
276: In raw I/O
277: .I read
278: and
279: .IR write (2)
280: truncate file offsets to 512-byte block boundaries,
281: and
282: .I write
283: scribbles on the tail of incomplete blocks.
284: Thus,
285: in programs that are likely to access raw devices,
286: .I read, write
287: and
288: .IR lseek (2)
289: should always deal in 512-byte multiples.
290: .PP
291: DEC-standard error logging should be supported.
292: .PP
293: A program to analyze the logged error information (even in its
294: present reduced form) is needed.
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.