2 Bacula® - The Network Backup Solution
4 Copyright (C) 2002-2010 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version three of the GNU Affero General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Affero General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of Kern Sibbald.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
30 * Routines for handling mounting tapes for reading and for
33 * Kern Sibbald, August MMII
37 #include "bacula.h" /* pull in global headers */
38 #include "stored.h" /* pull in Storage Deamon headers */
55 * If release is set, we rewind the current volume,
56 * which we no longer want, and ask the user (console)
57 * to mount the next volume.
59 * Continue trying until we get it, and then ensure
60 * that we can write on it.
62 * This routine returns a 0 only if it is REALLY
63 * impossible to get the requested Volume.
65 * This routine is entered with the device blocked, but not
69 bool DCR::mount_next_write_volume()
72 bool ask = false, recycle, autochanger;
76 Dmsg2(150, "Enter mount_next_volume(release=%d) dev=%s\n", dev->must_unload(),
79 init_device_wait_timers(dcr);
82 * Attempt to mount the next volume. If something non-fatal goes
83 * wrong, we come back here to re-try (new op messages, re-read
89 Dmsg1(150, "mount_next_vol retry=%d\n", retry);
90 /* Ignore retry if this is poll request */
92 /* Last ditch effort before giving up, force operator to respond */
95 if (!dir_ask_sysop_to_mount_volume(dcr, ST_APPEND)) {
96 Jmsg(jcr, M_FATAL, 0, _("Too many errors trying to mount device %s.\n"),
98 goto no_lock_bail_out;
101 Dmsg1(150, "Continue after dir_ask_sysop_to_mount. must_load=%d\n", dev->must_load());
103 if (job_canceled(jcr)) {
104 Jmsg(jcr, M_FATAL, 0, _("Job %d canceled.\n"), jcr->JobId);
109 if (dev->must_unload()) {
110 ask = true; /* ask operator to mount tape */
113 do_swapping(true /*is_writing*/);
114 do_load(true /*is_writing*/);
116 if (!find_a_volume()) {
120 if (job_canceled(jcr)) {
123 Dmsg3(150, "After find_next_append. Vol=%s Slot=%d Parts=%d\n",
124 getVolCatName(), VolCatInfo.Slot, VolCatInfo.VolCatParts);
127 * Get next volume and ready it for append
128 * This code ensures that the device is ready for
129 * writing. We start from the assumption that there
130 * may not be a tape mounted.
132 * If the device is a file, we create the output
133 * file. If it is a tape, we check the volume name
134 * and move the tape to the end of data.
137 dcr->setVolCatInfo(false); /* out of date when Vols unlocked */
138 if (autoload_device(dcr, true/*writing*/, NULL) > 0) {
146 Dmsg1(150, "autoload_dev returns %d\n", autochanger);
148 * If we autochanged to correct Volume or (we have not just
149 * released the Volume AND we can automount) we go ahead
150 * and read the label. If there is no tape in the drive,
151 * we will fail, recurse and ask the operator the next time.
153 if (!dev->must_unload() && dev->is_tape() && dev->has_cap(CAP_AUTOMOUNT)) {
154 Dmsg0(250, "(1)Ask=0\n");
155 ask = false; /* don't ask SYSOP this time */
157 /* Don't ask if not removable */
158 if (!dev->is_removable()) {
159 Dmsg0(250, "(2)Ask=0\n");
162 Dmsg2(250, "Ask=%d autochanger=%d\n", ask, autochanger);
166 dcr->setVolCatInfo(false); /* out of date when Vols unlocked */
167 if (!dir_ask_sysop_to_mount_volume(dcr, ST_APPEND)) {
168 Dmsg0(150, "Error return ask_sysop ...\n");
169 goto no_lock_bail_out;
173 if (job_canceled(jcr)) {
176 Dmsg3(150, "want vol=%s devvol=%s dev=%s\n", VolumeName,
177 dev->VolHdr.VolumeName, dev->print_name());
179 if (dev->poll && dev->has_cap(CAP_CLOSEONPOLL)) {
184 /* Ensure the device is open */
185 if (dev->has_cap(CAP_STREAM)) {
186 mode = OPEN_WRITE_ONLY;
188 mode = OPEN_READ_WRITE;
190 /* Try autolabel if enabled */
191 if (dev->open(dcr, mode) < 0) {
192 try_autolabel(false); /* try to create a new volume label */
194 while (dev->open(dcr, mode) < 0) {
195 Dmsg1(150, "open_device failed: ERR=%s\n", dev->bstrerror());
196 if ((dev->is_file() && dev->is_removable()) || dev->is_dvd()) {
198 Dmsg0(150, "call scan_dir_for_vol\n");
200 if (!dev->mount(0)) {
204 if (ok && dev->scan_dir_for_volume(dcr)) {
205 if (dev->open(dcr, mode) >= 0) {
206 break; /* got a valid volume */
209 if (ok && dev->is_dvd()) {
213 if (try_autolabel(false) == try_read_vol) {
214 break; /* created a new volume label */
216 Jmsg3(jcr, M_WARNING, 0, _("Open device %s Volume \"%s\" failed: ERR=%s\n"),
217 dev->print_name(), dcr->VolumeName, dev->bstrerror());
218 Dmsg0(50, "set_unload\n");
219 dev->set_unload(); /* force ask sysop */
221 Dmsg0(150, "goto mount_next_vol\n");
226 * Now check the volume label to make sure we have the right tape mounted
229 switch (check_volume_label(ask, autochanger)) {
231 Dmsg0(50, "set_unload\n");
232 dev->set_unload(); /* want a different Volume */
233 Dmsg0(150, "goto mount_next_vol\n");
243 * Check that volcatinfo is good
245 if (!dev->haveVolCatInfo()) {
246 Dmsg0(100, "Do not have volcatinfo\n");
247 if (!find_a_volume()) {
250 dev->VolCatInfo = VolCatInfo; /* structure assignment */
254 * See if we have a fresh tape or a tape with data.
256 * Note, if the LabelType is PRE_LABEL, it was labeled
257 * but never written. If so, rewrite the label but set as
258 * VOL_LABEL. We rewind and return the label (reconstructed)
259 * in the block so that in the case of a new tape, data can
260 * be appended just after the block label. If we are writing
261 * a second volume, the calling routine will write the label
262 * before writing the overflow block.
264 * If the tape is marked as Recycle, we rewrite the label.
266 recycle = strcmp(dev->VolCatInfo.VolCatStatus, "Recycle") == 0;
267 if (dev->VolHdr.LabelType == PRE_LABEL || recycle) {
268 if (!rewrite_volume_label(dcr, recycle)) {
269 mark_volume_in_error();
274 * OK, at this point, we have a valid Bacula label, but
275 * we need to position to the end of the volume, since we are
276 * just now putting it into append mode.
278 Dmsg1(100, "Device previously written, moving to end of data. Expect %lld bytes\n",
279 dev->VolCatInfo.VolCatBytes);
280 Jmsg(jcr, M_INFO, 0, _("Volume \"%s\" previously written, moving to end of data.\n"),
283 if (!dev->eod(dcr)) {
284 Dmsg2(050, "Unable to position to end of data on device %s: ERR=%s\n",
285 dev->print_name(), dev->bstrerror());
286 Jmsg(jcr, M_ERROR, 0, _("Unable to position to end of data on device %s: ERR=%s\n"),
287 dev->print_name(), dev->bstrerror());
288 mark_volume_in_error();
291 if (!is_eod_valid()) {
292 Dmsg0(100, "goto mount_next_vol\n");
296 dev->VolCatInfo.VolCatMounts++; /* Update mounts */
297 Dmsg1(150, "update volinfo mounts=%d\n", dev->VolCatInfo.VolCatMounts);
298 if (!dir_update_volume_info(dcr, false, false)) {
302 /* Return an empty block */
303 empty_block(block); /* we used it for reading so set for write */
306 Dmsg1(150, "set APPEND, normal return from mount_next_write_volume. dev=%s\n",
320 * This routine is meant to be called once the first pass
321 * to ensure that we have a candidate volume to mount.
322 * Otherwise, we ask the sysop to created one.
323 * Note, the the Volumes are locked on entry and exit.
325 bool DCR::find_a_volume()
329 if (!is_suitable_volume_mounted()) {
330 bool have_vol = false;
331 /* Do we have a candidate volume? */
333 bstrncpy(VolumeName, dev->vol->vol_name, sizeof(VolumeName));
334 have_vol = dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE);
337 * Get Director's idea of what tape we should have mounted.
341 Dmsg0(200, "Before dir_find_next_appendable_volume.\n");
342 while (!dir_find_next_appendable_volume(dcr)) {
343 Dmsg0(200, "not dir_find_next\n");
344 if (job_canceled(jcr)) {
348 if (!dir_ask_sysop_to_create_appendable_volume(dcr)) {
353 if (job_canceled(jcr)) {
356 Dmsg0(150, "Again dir_find_next_append...\n");
360 if (dcr->haveVolCatInfo()) {
363 return dir_get_volume_info(dcr, GET_VOL_INFO_FOR_WRITE);
366 int DCR::check_volume_label(bool &ask, bool &autochanger)
368 int vol_label_status;
370 * If we are writing to a stream device, ASSUME the volume label
373 if (dev->has_cap(CAP_STREAM)) {
374 vol_label_status = VOL_OK;
375 create_volume_label(dev, VolumeName, "Default", false /* not DVD */);
376 dev->VolHdr.LabelType = PRE_LABEL;
378 vol_label_status = read_dev_volume_label(this);
380 if (job_canceled(jcr)) {
384 Dmsg2(150, "Want dirVol=%s dirStat=%s\n", VolumeName,
385 VolCatInfo.VolCatStatus);
388 * At this point, dev->VolCatInfo has what is in the drive, if anything,
389 * and dcr->VolCatInfo has what the Director wants.
391 switch (vol_label_status) {
393 Dmsg1(150, "Vol OK name=%s\n", dev->VolHdr.VolumeName);
394 dev->VolCatInfo = VolCatInfo; /* structure assignment */
395 break; /* got a Volume */
397 VOLUME_CAT_INFO dcrVolCatInfo, devVolCatInfo;
398 char saveVolumeName[MAX_NAME_LENGTH];
400 Dmsg2(150, "Vol NAME Error Have=%s, want=%s\n", dev->VolHdr.VolumeName, VolumeName);
401 if (dev->is_volume_to_unload()) {
403 goto check_next_volume;
406 /* If not removable, Volume is broken */
407 if (!dev->is_removable()) {
408 Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"),
409 VolumeName, dev->print_name());
410 mark_volume_in_error();
411 goto check_next_volume;
415 * OK, we got a different volume mounted. First save the
416 * requested Volume info (dcr) structure, then query if
417 * this volume is really OK. If not, put back the desired
418 * volume name, mark it not in changer and continue.
420 dcrVolCatInfo = VolCatInfo; /* structure assignment */
421 devVolCatInfo = dev->VolCatInfo; /* structure assignment */
422 /* Check if this is a valid Volume in the pool */
423 bstrncpy(saveVolumeName, VolumeName, sizeof(saveVolumeName));
424 bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName));
425 if (!dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE)) {
426 POOL_MEM vol_info_msg;
427 pm_strcpy(vol_info_msg, jcr->dir_bsock->msg); /* save error message */
428 /* Restore desired volume name, note device info out of sync */
429 /* This gets the info regardless of the Pool */
430 bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName));
431 if (autochanger && !dir_get_volume_info(this, GET_VOL_INFO_FOR_READ)) {
433 * If we get here, we know we cannot write on the Volume,
434 * and we know that we cannot read it either, so it
435 * is not in the autochanger.
437 mark_volume_not_inchanger();
439 dev->VolCatInfo = devVolCatInfo; /* structure assignment */
440 dev->set_unload(); /* unload this volume */
441 Jmsg(jcr, M_WARNING, 0, _("Director wanted Volume \"%s\".\n"
442 " Current Volume \"%s\" not acceptable because:\n"
444 dcrVolCatInfo.VolCatName, dev->VolHdr.VolumeName,
445 vol_info_msg.c_str());
447 /* Restore saved DCR before continuing */
448 bstrncpy(VolumeName, saveVolumeName, sizeof(VolumeName));
449 VolCatInfo = dcrVolCatInfo; /* structure assignment */
450 goto check_next_volume;
453 * This was not the volume we expected, but it is OK with
454 * the Director, so use it.
456 Dmsg1(150, "Got new Volume name=%s\n", VolumeName);
457 dev->VolCatInfo = VolCatInfo; /* structure assignment */
458 Dmsg1(100, "Call reserve_volume=%s\n", dev->VolHdr.VolumeName);
459 if (reserve_volume(this, dev->VolHdr.VolumeName) == NULL) {
460 Jmsg2(jcr, M_WARNING, 0, _("Could not reserve volume %s on %s\n"),
461 dev->VolHdr.VolumeName, dev->print_name());
463 dev->setVolCatInfo(false);
464 setVolCatInfo(false);
465 goto check_next_volume;
467 break; /* got a Volume */
469 * At this point, we assume we have a blank tape mounted.
473 Jmsg(jcr, M_FATAL, 0, "%s", jcr->errmsg);
474 mark_volume_in_error();
475 goto check_bail_out; /* we could not write on DVD */
477 /* Fall through wanted */
479 switch (try_autolabel(true)) {
481 goto check_next_volume;
483 goto check_read_volume;
489 /* NOTE! Fall-through wanted. */
492 Dmsg0(200, "VOL_NO_MEDIA or default.\n");
493 /* Send error message */
496 Dmsg1(200, "Msg suppressed by poll: %s\n", jcr->errmsg);
499 /* Needed, so the medium can be changed */
500 if (dev->requires_mount()) {
504 goto check_next_volume;
509 dev->setVolCatInfo(false);
510 setVolCatInfo(false);
511 return check_next_vol;
517 return check_read_vol;
522 bool DCR::is_suitable_volume_mounted()
524 /* Volume mounted? */
525 if (dev->VolHdr.VolumeName[0] == 0 || dev->swap_dev || dev->must_unload()) {
526 return false; /* no */
528 bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName));
529 return dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE);
532 bool DCR::do_unload()
534 if (dev->must_unload()) {
535 Dmsg1(100, "must_unload release %s\n", dev->print_name());
541 bool DCR::do_load(bool is_writing)
543 if (dev->must_load()) {
544 Dmsg1(100, "Must load %s\n", dev->print_name());
545 if (autoload_device(this, is_writing, NULL) > 0) {
554 void DCR::do_swapping(bool is_writing)
557 * See if we are asked to swap the Volume from another device
558 * if so, unload the other device here, and attach the
559 * volume to our drive.
562 if (dev->swap_dev->must_unload()) {
564 dev->swap_dev->set_slot(dev->vol->get_slot());
566 Dmsg2(100, "Swap unloading slot=%d %s\n", dev->swap_dev->get_slot(),
567 dev->swap_dev->print_name());
568 unload_dev(this, dev->swap_dev);
571 dev->vol->clear_swapping();
572 Dmsg1(100, "=== set in_use vol=%s\n", dev->vol->vol_name);
573 dev->vol->set_in_use();
574 dev->VolHdr.VolumeName[0] = 0; /* don't yet have right Volume */
576 Dmsg1(100, "No vol on dev=%s\n", dev->print_name());
578 if (dev->swap_dev->vol) {
579 Dmsg2(100, "Vol=%s on dev=%s\n", dev->swap_dev->vol->vol_name,
580 dev->swap_dev->print_name());
582 dev->swap_dev = NULL;
588 * Check if the current position on the volume corresponds to
589 * what is in the catalog.
591 bool DCR::is_eod_valid()
594 char ed1[50], ed2[50];
595 if (dev->VolCatInfo.VolCatBytes == dev->part_start + dev->part_size) {
596 Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\""
597 " part=%d size=%s\n"), VolumeName,
598 dev->part, edit_uint64(dev->VolCatInfo.VolCatBytes,ed1));
600 Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on DVD Volume \"%s\" because: "
601 "The sizes do not match! Volume=%s Catalog=%s\n"),
603 edit_uint64(dev->part_start + dev->part_size, ed1),
604 edit_uint64(dev->VolCatInfo.VolCatBytes, ed2));
605 mark_volume_in_error();
608 } else if (dev->is_tape()) {
610 * Check if we are positioned on the tape at the same place
611 * that the database says we should be.
613 if (dev->VolCatInfo.VolCatFiles == dev->get_file()) {
614 Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\" at file=%d.\n"),
615 VolumeName, dev->get_file());
616 } else if (dev->get_file() > dev->VolCatInfo.VolCatFiles) {
617 Jmsg(jcr, M_WARNING, 0, _("For Volume \"%s\":\n"
618 "The number of files mismatch! Volume=%u Catalog=%u\n"
619 "Correcting Catalog\n"),
620 VolumeName, dev->get_file(), dev->VolCatInfo.VolCatFiles);
621 dev->VolCatInfo.VolCatFiles = dev->get_file();
622 dev->VolCatInfo.VolCatBlocks = dev->get_block_num();
623 if (!dir_update_volume_info(this, false, true)) {
624 Jmsg(jcr, M_WARNING, 0, _("Error updating Catalog\n"));
625 mark_volume_in_error();
629 Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on tape Volume \"%s\" because:\n"
630 "The number of files mismatch! Volume=%u Catalog=%u\n"),
631 VolumeName, dev->get_file(), dev->VolCatInfo.VolCatFiles);
632 mark_volume_in_error();
635 } else if (dev->is_file()) {
636 char ed1[50], ed2[50];
638 pos = dev->lseek(this, (boffset_t)0, SEEK_END);
639 if (dev->VolCatInfo.VolCatBytes == (uint64_t)pos) {
640 Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\""
641 " size=%s\n"), VolumeName,
642 edit_uint64(dev->VolCatInfo.VolCatBytes, ed1));
643 } else if ((uint64_t)pos > dev->VolCatInfo.VolCatBytes) {
644 Jmsg(jcr, M_WARNING, 0, _("For Volume \"%s\":\n"
645 "The sizes do not match! Volume=%s Catalog=%s\n"
646 "Correcting Catalog\n"),
647 VolumeName, edit_uint64(pos, ed1),
648 edit_uint64(dev->VolCatInfo.VolCatBytes, ed2));
649 dev->VolCatInfo.VolCatBytes = (uint64_t)pos;
650 dev->VolCatInfo.VolCatFiles = (uint32_t)(pos >> 32);
651 if (!dir_update_volume_info(this, false, true)) {
652 Jmsg(jcr, M_WARNING, 0, _("Error updating Catalog\n"));
653 mark_volume_in_error();
657 Mmsg(jcr->errmsg, _("Bacula cannot write on disk Volume \"%s\" because: "
658 "The sizes do not match! Volume=%s Catalog=%s\n"),
660 edit_uint64(pos, ed1),
661 edit_uint64(dev->VolCatInfo.VolCatBytes, ed2));
662 Jmsg(jcr, M_ERROR, 0, jcr->errmsg);
663 Dmsg0(050, jcr->errmsg);
664 mark_volume_in_error();
673 * If permitted, we label the device, make sure we can do
674 * it by checking that the VolCatBytes is zero => not labeled,
675 * once the Volume is labeled we don't want to label another
676 * blank tape with the same name. For disk, we go ahead and
677 * label it anyway, because the OS insures that there is only
678 * one Volume with that name.
679 * As noted above, at this point dcr->VolCatInfo has what
680 * the Director wants and dev->VolCatInfo has info on the
681 * previous tape (or nothing).
684 * try_next_vol label failed, look for another volume
685 * try_read_vol labeled volume, now re-read the label
686 * try_error hard error (catalog update)
687 * try_default I couldn't do anything
689 int DCR::try_autolabel(bool opened)
693 if (dev->poll && !dev->is_tape()) {
694 return try_default; /* if polling, don't try to create new labels */
696 /* For a tape require it to be opened and read before labeling */
697 if (!opened && dev->is_tape()) {
700 if (dev->has_cap(CAP_LABEL) && (VolCatInfo.VolCatBytes == 0 ||
701 (!dev->is_tape() && strcmp(VolCatInfo.VolCatStatus,
703 Dmsg0(150, "Create volume label\n");
704 /* Create a new Volume label and write it to the device */
705 if (!write_new_volume_label_to_dev(dcr, VolumeName,
706 pool_name, false, /* no relabel */ false /* defer DVD label */)) {
707 Dmsg2(150, "write_vol_label failed. vol=%s, pool=%s\n",
708 VolumeName, pool_name);
710 mark_volume_in_error();
714 Dmsg0(150, "dir_update_vol_info. Set Append\n");
715 /* Copy Director's info into the device info */
716 dev->VolCatInfo = VolCatInfo; /* structure assignment */
717 if (!dir_update_volume_info(dcr, true, true)) { /* indicate tape labeled */
720 Jmsg(dcr->jcr, M_INFO, 0, _("Labeled new Volume \"%s\" on device %s.\n"),
721 VolumeName, dev->print_name());
722 return try_read_vol; /* read label we just wrote */
724 if (!dev->has_cap(CAP_LABEL) && VolCatInfo.VolCatBytes == 0) {
725 Jmsg(jcr, M_WARNING, 0, _("Device %s not configured to autolabel Volumes.\n"),
728 /* If not removable, Volume is broken */
729 if (!dev->is_removable()) {
730 Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"),
731 VolumeName, dev->print_name());
732 mark_volume_in_error();
740 * Mark volume in error in catalog
742 void DCR::mark_volume_in_error()
744 Jmsg(jcr, M_INFO, 0, _("Marking Volume \"%s\" in Error in Catalog.\n"),
746 dev->VolCatInfo = VolCatInfo; /* structure assignment */
747 bstrncpy(dev->VolCatInfo.VolCatStatus, "Error", sizeof(dev->VolCatInfo.VolCatStatus));
748 Dmsg0(150, "dir_update_vol_info. Set Error.\n");
749 dir_update_volume_info(this, false, false);
751 Dmsg0(50, "set_unload\n");
752 dev->set_unload(); /* must get a new volume */
756 * The Volume is not in the correct slot, so mark this
757 * Volume as not being in the Changer.
759 void DCR::mark_volume_not_inchanger()
761 Jmsg(jcr, M_ERROR, 0, _("Autochanger Volume \"%s\" not found in slot %d.\n"
762 " Setting InChanger to zero in catalog.\n"),
763 getVolCatName(), VolCatInfo.Slot);
764 dev->VolCatInfo = VolCatInfo; /* structure assignment */
765 VolCatInfo.InChanger = false;
766 dev->VolCatInfo.InChanger = false;
767 Dmsg0(400, "update vol info in mount\n");
768 dir_update_volume_info(this, true, false); /* set new status */
772 * Either because we are going to hang a new volume, or because
773 * of explicit user request, we release the current volume.
775 void DCR::release_volume()
777 unload_autochanger(this, -1);
780 Jmsg0(jcr, M_ERROR, 0, _("Hey!!!!! WroteVol non-zero !!!!!\n"));
781 Pmsg0(190, "Hey!!!!! WroteVol non-zero !!!!!\n");
784 * First erase all memory of the current volume
787 dev->block_num = dev->file = 0;
788 dev->EndBlock = dev->EndFile = 0;
789 memset(&dev->VolCatInfo, 0, sizeof(dev->VolCatInfo));
791 /* Force re-read of label */
792 dev->clear_labeled();
795 dev->label_type = B_BACULA_LABEL;
798 if (dev->is_open() && (!dev->is_tape() || !dev->has_cap(CAP_ALWAYSOPEN))) {
802 /* If we have not closed the device, then at least rewind the tape */
803 if (dev->is_open()) {
804 dev->offline_or_rewind();
806 Dmsg0(190, "release_volume\n");
812 * Check to see if the tape position as defined by the OS is
813 * the same as our concept. If it is not,
814 * it means the user has probably manually rewound the tape.
815 * Note, we check only if num_writers == 0, but this code will
816 * also work fine for any number of writers. If num_writers > 0,
817 * we probably should cancel all jobs using this device, or
818 * perhaps even abort the SD, or at a minimum, mark the tape
819 * in error. Another strategy with num_writers == 0, would be
820 * to rewind the tape and do a new eod() request.
822 bool DCR::is_tape_position_ok()
824 if (dev->is_tape() && dev->num_writers == 0) {
825 int32_t file = dev->get_os_tape_file();
826 if (file >= 0 && file != (int32_t)dev->get_file()) {
827 Jmsg(jcr, M_ERROR, 0, _("Invalid tape position on volume \"%s\""
828 " on device %s. Expected %d, got %d\n"),
829 dev->VolHdr.VolumeName, dev->print_name(), dev->get_file(), file);
831 * If the current file is greater than zero, it means we probably
832 * have some bad count of EOF marks, so mark tape in error. Otherwise
833 * the operator might have moved the tape, so we just release it
837 mark_volume_in_error();
848 * If we are reading, we come here at the end of the tape
849 * and see if there are more volumes to be mounted.
851 bool mount_next_read_volume(DCR *dcr)
853 DEVICE *dev = dcr->dev;
855 Dmsg2(90, "NumReadVolumes=%d CurReadVolume=%d\n", jcr->NumReadVolumes, jcr->CurReadVolume);
857 volume_unused(dcr); /* release current volume */
859 * End Of Tape -- mount next Volume (if another specified)
861 if (jcr->NumReadVolumes > 1 && jcr->CurReadVolume < jcr->NumReadVolumes) {
863 if (!acquire_device_for_read(dcr)) {
864 Jmsg2(jcr, M_FATAL, 0, _("Cannot open Dev=%s, Vol=%s\n"), dev->print_name(),
868 return true; /* next volume mounted */
870 Dmsg0(90, "End of Device reached.\n");