/usr/share/doc/hercules/html/hercload.html is in hercules 3.07-2.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 | <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.0//EN" "html.dtd">
<HTML>
<HEAD><TITLE>
Hercules Version 3: Creating DASD</TITLE>
<LINK REL=STYLESHEET TYPE="text/css" HREF="hercules.css">
</HEAD>
<BODY BGCOLOR="#ffffcc" TEXT="#000000" LINK="#0000A0"
VLINK="#008040" ALINK="#000000">
<h1>Hercules Version 3: Creating DASD</h1>
<p>
This page describes various ways of creating and loading DASD
volumes for use with Hercules.
<p><hr>
<h2>Contents</h2>
<blockquote>
<p>
<a href="#prebuilt">Using pre-built DASD images</a>
</p>
<p>
<a href="#loading">Creating, formatting, and loading DASD volumes</a>
</p>
<p>
<a href="#PDS">Building a DASD volume from unloaded PDS files</a>
</p>
<p>
<a href="#utilities">Other DASD utilities</a>
</p>
</blockquote>
<p><hr><a name="prebuilt"></a>
<h2>Using pre-built DASD images</h2>
<p>
IBM distributes pre-built OS/390 and z/OS systems on two
different CD-ROM packages:
<dl>
<dt><b>The OS/390 and z/OS Application Development CD (ADCD)</b>
<dd>available only to members of IBM PartnerWorld for Developers,
and
<dt><b>The OS/390 and z/OS DemoPkg</b>
<dd>available only to IBM employees and qualified IBM Business Partners.
</dl>
<p>Both of these packages contain pre-built DASD image files
which simply need to be unzipped onto your hard drive. The
unzipped images can be directly read by Hercules.
<p>
Be aware, however, that you cannot use the ADCD images because
the PartnerWorld scheme requires you to purchase or lease an IBM
approved machine in order to obtain the ADCD, and the software on
the ADCD is licensed for use only on the machine that it was
shipped with.
See
<a href="http://www.ibm.com/servers/enable/site/zinfo/adcd.html">
http://www.ibm.com/servers/enable/site/zinfo/adcd.html</a>.
If you want Hercules to be an approved machine so that you can
use the ADCD, then I suggest you lobby IBM Developer Relations
<!-- ===(fyolton @ us.ibm.com)=== -->
at the address given on their web page.
<p>
Different rules apply to the OS/390 and z/OS
DemoPkg CD which is available only to IBM employees and business
partners. If you fall into this category then you probably know
what the rules are -- I don't :-(
<p><hr><a name="loading"></a>
<h2>Creating, formatting, and loading DASD volumes</h2>
<h4>Creating an empty DASD volume</h4>
<p>
The dasdinit program must first be run from the Unix shell prompt to
create a file containing an empty DASD volume.
<p>
The format of the dasdinit command is:
<p><br>
<pre>
Hercules DASD image file creation program
Version 3.06
(c)Copyright 1999-2009 by Roger Bowler, Jan Jaeger, and others
Builds an empty dasd image file:
dasdinit [-options] filename devtype[-model] [volser] [size]
where:
-v display version info and help
-z build compressed dasd image file using zlib
-bz2 build compressed dasd image file using bzip2
-0 build compressed dasd image file with no compression
-lfs build a large (uncompressed) dasd file (if supported)
-a build dasd image file that includes alternate cylinders
(option ignored if size is manually specified)
-r build 'raw' dasd image file (no VOL1 or IPL track)
-linux null track images will look like linux dasdfmt'ed images
(3390 device type only)
filename name of dasd image file to be created
devtype CKD: 2305, 2311, 2314, 3330, 3340, 3350, 3375, 3380, 3390, 9345
FBA: 0671, 3310, 3370, 9313, 9332, 9335, 9336
model device model (implies size) (opt)
volser volume serial number (1-6 characters)
(specified only if '-r' option not used)
size number of CKD cylinders or 512-byte FBA sectors
(required if model not specified else optional)
</pre>
<p><br>
<a NAME="models">
The current list of device types and models supported is:
<p><br>
<pre>
CKD DEVICES
alt
devtype-model cyls cyls
2311 [*]
2311-1 200 2
2314 [*]
2314-1 200 3
3330 [*]
3330-1 404 7
3330-2 808 7
3330-11 808 7
3340 [*]
3340-1 348 1
3340-35 348 1
3340-2 696 2
3340-70 696 2
3350 [*]
3350-1 555 5
3375 [*]
3375-1 959 1
3380 [*]
3380-1 885 1
3380-A 885 1
3380-B 885 1
3380-D 885 1
3380-J 885 1
3380-2 1770 2
3380-E 1770 2
3380-3 2655 3
3380-K 2655 3
EMC3380K+ 3339 3
EMC3380K++ 3993 3
3390 [*]
3390-1 1113 1
3390-2 2226 1
3390-3 3339 1
3390-9 10017 3
3390-27 32760 3
3390-54 65520 3
9345 [*]
9345-1 1440 0
9345-2 2156 0
FBA DEVICES
devtype-model blocks
3310 [*]
3310-1 125664
3370 [*]
3370-Al 558000
3370-B1 558000
3370-A2 712752
3370-B2 712752
9313 [*]
9313-1 246240
9332 [*]
9332-200 360036
9332-400 360036
9332-600 554800
9335 [*]
9335-1 804714
9336 [*]
9336-10 920115
9336-20 1672881
9336-25 1672881
0671-08 513072
0671 574560
0671-04 624456
</pre>
<p>
[<b>*</b>] size may be specified else size defaults to the
first listed model.
<p>
<h4>Volumes exceeding 2GB</h4>
<p>
For CKD volumes which exceed 2GB, such as the 3390-3, and the
<b>-lfs</b> parameter is not specified, the DASDINIT
program will create multiple files by appending the characters
<b>_1</b>, <b>_2</b>, <b>_3</b> etc.
to the file name specified on the command line. These characters
are inserted before the first dot (<b>.</b>) after the last slash
(<b>/</b>). If there is no dot, then the characters are appended
to the end of the name. Each file contains a whole number of cylinders.
Hercules CKD support recognizes the files as belonging to a single
logical volume. Specify the full name of just the first file in the
Hercules configuration file (e.g. "<i>filename</i>_1").
<p>
The DASDINIT program cannot create FBA volumes exceeding 2GB
unless the <b>-lfs</b> parameter is specified and <i>large file size</i>
is supported on your platform..
<h5>Examples</h5>
<p>
To create a 3330 model 1 CKD volume consisting of 404 cylinders
(plus 7 alternate cylinders too)
with volume serial number WORK01 in a file called
<b><i>work01.151</b></i>:
<pre>
dasdinit -a work01.151 3330-1 work01
</pre>
<p>
To create a compressed 3350 CKD volume consisting of 560 cylinders
(555 cylinders plus the 5 alternate cylinders)
with volume serial number SYSRES in a file called
<b><i>dosvs34.24f</b></i>:
<pre>
dasdinit -a -bz2 dosvs34.24f 3350-1 sysres
</pre>
<p>
To create a 3370 FBA volume with only 100000 sectors
(instead of the usual 558000 sectors)
with volume serial number WORK02 in a file called
<b><i>mini.work02.140</b></i>:
<pre>
dasdinit mini.work02.140 3370 work02 100000
</pre>
<p>
To create a 3390 model 3 (triple density) CKD volume
of 3339 cylinders with volume serial number WORK03:
<pre>
dasdinit triple.a88 3390-3 work03
</pre>
<p>
Because this volume exceeds 2GB, DASDINIT will create two files
with <b><i>triple_1.a88</b></i> containing cylinders 0-2518 and
<b><i>triple_2.a88</b></i> containing cylinders 2519-3339. If you
specify
<pre>
dasdinit -lfs triple.a88 3390-3 work03
</pre>
<p>
then DASDINIT will create a single file <b><i>triple.a88</i></b>
containing all the cylinders. Your platform must support <i>large
file size</i> to specify the <b>-lfs</b> option.
<h4>Formatting the empty DASD volume</h4>
<p>
After creating a DASD volume you can format it with a program
such as standalone IBCDASDI or ICKDSF.
<p>
Here is an example of the IBCDASDI control statements required
to initialize a 3330 volume:
<pre><code>
WORK01 JOB 'INITIALIZE 3330 WORK VOLUME'
MSG TODEV=1052,TOADDR=009
DADEF TODEV=3330,TOADDR=151,IPL=NO,VOLID=WORK01,BYPASS=YES
VLD NEWVOLID=WORK01,OWNERID=HERCULES
VTOCD STRTADR=1,EXTENT=5
END
</code></pre>
<p>
To run IBCDASDI, place the above statements in a file called
<b><i>init3330.txt</i></b> and start Hercules in S/370 mode with
a configuration file containing these statements:
<pre><code>
CPUSERIAL 001234
CPUMODEL 3145
MAINSIZE 2
CNSLPORT 1052
ARCHMODE S/370
0009 1052
000A 1442 ibcdasdi.rdr
000C 1442 init3330.txt
0151 3330 work01.151
</code></pre>
<p>
After IPLing from card reader device 00A, connect a telnet client
to port 1052, and press enter. At the IBCDASDI prompt, enter:
<pre><code>input=1442 00c</code></pre>
<h4>Loading the new DASD volume</h4>
<p>
Next you need to create a full volume dump file on your mainframe
and convert it to AWSTAPE format using the <b><i>tapeconv.jcl</i></b>
job in the Hercules source directory. The AWSTAPE file can then
be downloaded in binary format to your PC where it can be defined
as a virtual tape drive in the Hercules configuration file.
<p>
A standalone program can now be IPLed into Hercules to restore the
volume image from the virtual tape onto the formatted virtual DASD
volume.
<p><hr><a name="PDS"></a>
<h2>Building a DASD volume from unloaded PDS files</h2>
<p>
The dasdload program can be run from the Unix shell prompt to
create a new DASD image file and load it with data from unloaded
PDS files.
<p>
The format of the dasdload command is:
<p><code>dasdload <i>[options]</i> <em>ctlfile outfile msglevel</em></code>
<p>
where
<dl>
<dt><em>[options]</em>
<dt><code><i>-z</i></code>
<dd>build compressed dasd image file using zlib
<dt><code><i>-bz2</i></code>
<dd>build compressed dasd image file using bzip2
<dt><code><i>-0</i></code>
<dd>build compressed dasd image file with no compression
<dt><code><i>-lfs</i></code>
<dd>build a large dasd image file (can exceed 2G)
<dt><code><i>-a</i></code>
<dd>build dasd image file that includes alternate cylinders
<dt><code><em>ctlname</em></code>
<dd>is the name of the control file which specifies the datasets
that are to be loaded onto the newly-created volume
<dt><code><em>outfile</em></code>
<dd>is the name of the DASD image file to be created
<dt><code><em>msglevel</em></code>
<dd>is a number from 0 to 5 which controls the level of detail
of the messages issued during the load.
</dl>
<h4>Control file</h4>
<p>
The control file required by the dasdload program is an ASCII text
file consisting of a <em>volume statement</em> followed by one
<em>dataset statement</em> for each dataset to be created.
<p>
The format of the volume statement is:
<p><code><em>volser devtype</em>[-<em>model</em>] [<em>cyls</em> [<em>ipltext</em>] ]</code>
<p>where:
<dl>
<dt><code><em>volser</em></code>
<dd>is the volume serial number for the newly-created volume
<dt><code><em>devtype</em></code>
<dd>is the emulated device type (2311, 2314, 3330, 3340, 3350, 3375,
3380, or 3390) for the new volume. FBA device types are not supported
by the dasdload program. Model may be specified like
<a href="#models">dasdinit</a> above.
<dt><code><em>cyls</em></code>
<dd>is the size of the new volume in cylinders.
If <code><em>cyls</em></code> is coded as <code>*</code>
or as <code>0</code> or is omitted, then the default size
for the device type and model is used. Cylinders is ignored
for compressed devices.
<dt><code><em>ipltext</em></code>
<dd>is an optional parameter specifying the name of a file
containing the IPL text which will be written to the volume.
The file must be in the form of an object deck containing
fixed length 80-byte EBCDIC records in the same format as
expected by IBCDASDI or ICKDSF.
</dl>
<p>
The format of a dataset statement is:
<p><code><em>dsname method units pri sec dir dsorg recfm
lrecl blksize keylen</em></code>
<p>where:
<dl>
<dt><code><em>dsname</em></code>
<dd>is the dataset name
<dt><code><em>method</em></code>
<dd>is the dataset loading method which can be one of the following:
<dl>
<dt><code>XMIT <em>filename</em></code>
<dd>the dataset is loaded from an unloaded PDS created by
the TSO XMIT command
<dt><code>SEQ <em>filename</em></code>
<dd>the sequential dataset is loaded from a <b>binary</b> file.
ascii/ebcdic translation is not currently supported. Also,
the dsorg must either be <em>PS</em> or <em>DA</em> and
recfm must either be <em>F</em> or <em>FB</em>.
<dt><code>EMPTY</code>
<dd>the dataset is initialized with an end of file record
(if DSORG is PS) or an empty PDS directory (if DSORG is PO)
<dt><code>DIP</code>
<dd>the dataset is initialized with a LOGREC header record
<dt><code>CVOL</code>
<dd>the dataset is initialized as an OS SYSCTLG containing
the minimum entries needed to IPL an OS/360 system
<dt><code>VTOC</code>
<dd>specifies the size and location of the VTOC. A dataset
name must be coded on this statement, although it is not
used. If no VTOC statement is present, the VTOC will be
placed after the last dataset on the volume and the size
of the VTOC will be the minimum number of tracks necessary.
</dl>
<dt><code><em>units</em></code>
<dd>is the space allocation units: <code>TRK</code> or <code>CYL</code>.
<dt><code><em>pri</em></code>
<dd>is the space allocation primary quantity
<dt><code><em>sec</em></code>
<dd>is the space allocation secondary quantity
<dt><code><em>dir</em></code>
<dd>is the number of directory blocks
<dt><code><em>dsorg</em></code>
<dd>is the dataset organization: <code>PS</code>, <code>PO</code>,
<code>DA</code>, or <code>IS</code>,
<dt><code><em>recfm</em></code>
<dd>is the record format: <code>F</code>, <code>FB</code>, <code>FBS</code>,
<code>V</code>, <code>VB</code>, <code>VBS</code>,
or <code>U</code>.
<dt><code><em>lrecl</em></code>
<dd>is the logical record length
<dt><code><em>blksize</em></code>
<dd>is the block size
<dt><code><em>keylen</em></code>
<dd>is the key length
</dl>
<p>All parameters except dsname and method are optional.
Defaults of zero are supplied for DCB parameters. For datasets
loaded with the XMIT method, the DCB parameters are taken from
the unloaded PDS, and the minimum space allocation required to
load the dataset is used unless a larger quantity is specified.
If space allocation is omitted, the default is TRK 1 0 0.
If CYL is specified without any primary quantity then the default
space allocation is 1 cylinder or the minimum number of cylinders
required to load the dataset, whichever is larger.
<h4>Examples</h4>
<p>
<b>[1]</b> To create a 2314 volume in a file called <b><i>sysres.230</i></b>
using the control file <b><i>sysres.plf</i></b> with message level 2:
<pre><code>dasdload sysres.plf sysres.230 2</pre></code>
<p>
An example control file is shown below:
<code><pre>#
# Pack layout file for MFT system residence volume
#
sysres 2314 * ieaipl00.rdr
sys1.parmlib xmit /cdrom/os360/reslibs/parmlib.xmi
sys1.imagelib xmit /cdrom/os360/reslibs/imagelib.xmi
sysctlg cvol trk 1 0 0 ps f 256 256 8
sysvtoc vtoc trk 5
sys1.logrec dip trk 1 0 0
sys1.nucleus xmit /cdrom/os360/reslibs/nucleus.xmi cyl
sys1.svclib xmit /cdrom/os360/reslibs/svclib.xmi cyl
sys1.sysjobqe empty cyl 2 0 0 da f 176 176 0
sys1.dump empty cyl 10 0 0 ps u 0 3625 0
</pre></code>
<p>
<b>[2]</b> To create a compressed 3390-3 volume in a file called
<b><i>linux.500</i></b> containing a bootable linux system for
linux/390 installation using the control file <b><i>linux.prm</i></b>:
<pre><code>dasdload -z linux.prm linux.500</pre></code>
<p>
An example control file is shown below:
<code><pre>
#
# Build a bootable linux disk
# [Note: the dataset names (sys1.linux. ...) are hard-coded in
# linuxipl.obj and cannot be changed without rebuilding it]
#
linux 3390-3 * linuxipl.obj
sys1.linux.parmfile SEQ images/redhat.prm trk 1 0 0 ps fb 1024 1024
sys1.linux.tapeipl.ikr SEQ images/kernel.img trk 200 0 0 ps fb 1024 1024
sys1.linux.initrd SEQ images/initrd.img trk 200 0 0 ps fb 1024 1024
</pre></code>
<h3>Fixing the XCTL tables in SVCLIB</h3>
<p>
On an OS/360 system, the Open/Close/EOV modules in SYS1.SVCLIB have
XCTL tables embedded within them. These tables contain TTRs
pointing to other modules, and these TTRs need to be adjusted after
loading SVCLIB to DASD. OS/360 provides a program called IEHIOSUP
to perform this function, but the catch is that you can't run
IEHIOSUP until you have the system up and running, and you can't IPL
until you have fixed the XCTL tables.
To solve this problem, Hercules provides a program called dasdisup
which can be run from the Unix command line after running dasdload.
<p>
The format of the dasdisup command is:
<p><code>dasdisup <em>outfile [sf=shadow-file-name]</em></code>
<p>
where
<dl>
<dt><code><em>outfile</em></code>
<dd>is the name of the DASD image file to be updated
<dt><code><em>shadow-file-name</em></code>
<dd>(optional) is the name of the associated shadow file
as specified in the Hercules config file
</dl>
<p>
<em>Note: do not use this procedure except on OS/360 IPL volumes;
other operating systems do not have XCTL tables.</em>
<p><hr><a name="utilities"></a>
<h2>Other DASD utilities</h2>
<p>
These programs can be used to extract data from CKD DASD images
by means of commands issued at the Unix shell prompt.
<h3>DASDLS - List datasets on volume</h3>
<p>
DASDLS, written by Malcolm Beattie, is a command to let you list the
names of the datasets contained in disk images.
<p>
The command format is:
<br><code>
dasdls <em>ckdfile [sf=shadow-file-name] ...</em>
</code></br>
where <em>ckdfile</em> is the name of a Unix file containing a CKD volume
and <em>shadow-file-name</em> (optional) is the name of the associated
shadow file.
<h3>DASDCAT - Display PDS members</h3>
<p>
DASDCAT, written by Malcolm Beattie, is a command to let you read
datasets from disk images.
<p>
The command format is:
<br><code>
dasdcat -i <em>ckdfile [sf=shadow-file-name] dsname1 dsname2 ...</em> -i <em>ckdfile2 dsname10 ...</em>
</code><br>
where <em>ckdfile</em> is the name of a Unix file containing a CKD volume,
<em>shadow-file-name</em> (optional) is the name of the associated shadow file,
and <em>dsname</em> can be a plain (non-partitioned) dataset name
(which is currently not handled) or of the form <em>pdsname</em>/<em>memname</em>
where <em>memname</em> can be:
<ul>
<li><b>PDS member name</b> (automatically uppercased),
optionally followed by ":" and flags "a" or "c".
<ul>
<li>"c" means (c)ard images and turns a PDS members with a block
size that's a multiple of 80 into multiple newline separated
lines of 72 characters with EBCDIC converted to ASCII and with
sequence numbers chopped off.
<li>"a" means (a)sciify the member (but don't chop off sequence
numbers or do the card image thing).
</ul>
<li><b>?</b> (don't forget to quote it to avoid the shell globbing it)
to list the names of all PDS members instead of outputting their
contents.
<li><b>*</b> (again, quote it or backwhack it to avoid it being a glob)
to output all members of the PDS instead of just a named one.
This can optionally be followed with colon-then-flags, as above.
Each member is preceded with a line "> Member: memname" and, if
the "c" for card-images flags is used, each line of the members'
contents is preceded with "| " to guarantee it can be
distinguished from contents.
</ul>
<h5>Examples</h5>
<pre><code>
% dasdcat -i mvtres.350 sf= mvtres_1.350 'sys1.parmlib/?'
ieabld00
ieaige00
ieaigg00
ieaigg01
iearsv00
ikjprm00
lnklst00
presres
smfdeflt
% dasdcat -i mvtres.350 sys1.parmlib/smfdeflt:c
OPT=2, SYSTEM,JOB AND STEP DATA COLLECTION
EXT=YES, USER EXITS ARE TO BE TAKEN
JWT=15, MAXIMUM CONTINUOUS WAIT TIME IS 15 MINS.PER STEP
BUF=400, A MINIMUM 400 BYTE BUFFER IS DEFINED
SID=6A, SYSTEM ID IS 6A
MDL=65, MODEL IS MOD 65
OPI=YES, PERMIT OPERATOR INTERVENTION
MAN=ALL, RECORD USER AND SYSTEM RECORDS
PRM=(,282,NL) SYS1.MAN ALLOCATED TO NON-LABELED TAPE
% dasdcat -i mvtres.350 sys1.help/\*:c
> Member ACCOUNT
| )S SUBCOMMANDS -
| ADD/A,CHANGE/C,DELETE/D,LIST/L,LISTIDS/LISTI,HELP/H,END
| )F FUNCTION -
| THE ACCOUNT COMMAND PROCESSOR INVOKES THE CONVERSATIONAL PROGRAMS
...
> Member ALLOC
| )F FUNCTION -
| THE ALLOCATE COMMAND DYNAMICALLY DEFINES AND ALLOCATES A DATA SET
| WITH OR WITHOUT AN ATTRIBUTE LIST OF DCB PARAMETERS
| )X SYNTAX -
| ALLOCATE DATASET('DSNAME'/*) FILE('DDNAME')
...
</code></pre>
<h3>DASDPDSU - Unload PDS members</h3>
<p>
DASDPDSU is a command which unloads PDS members from a disk image
and copies each member to a file <em>memname</em>.mac in the current
working directory.
<p>
The command format is:
<br><code>
dasdpdsu <em>ckdfile [sf=shadow-file-name] pdsname</em> [ascii]
</code></br>
where <em>ckdfile</em> is the name of a Unix file containing a CKD
volume, <em>shadow-file-name</em> (optional) is the name of the associated
shadow file, and <em>pdsname</em> is the name of a PDS on that volume.
If the optional <b>ascii</b> keyword is specified, the members will be
unloaded as ASCII variable length text files. Otherwise the members
are unloaded as fixed length EBCDIC binary files.
<p><center><hr width=15% noshade></center>
<p>
If you have a question about Hercules, see the
<a href="hercfaq.html">Hercules Frequently-Asked Questions</a> page.
<p><center><hr width=15% noshade>
<a href="hercinst.html"><img src="images/back.gif" border=0 alt="back"></a>
</center>
<p class="lastupd">Last updated $Date: 2009-01-23 07:25:01 -0600 (Fri, 23 Jan 2009) $ $Revision: 5127 $</p>
</BODY>
</HTML>
|