4 Documentation to do: (a little bit at a time)
5 - Document running a test version.
6 - Document query file format.
7 - Document static linking
8 - Document how to automatically backup all local partitions
9 - Document problems with Verify and pruning.
10 - Document how to use multiple databases.
13 Testing to do: (painful)
14 - that console command line options work
15 - blocksize recognition code.
18 - Add Signature type to File DB record.
19 - CD into subdirectory when open()ing files for backup to
20 speed up things. Test with testfind().
21 - Add prefixlinks to where or not where absolute links to FD.
22 - Look at handling <> in smtp doesn't work with exim.
23 - Priority job to go to top of list.
24 - Implement Bar code handling
25 - Why is catreq.c:111 Find vol called twice for a job?
26 - Find out why Full saves run slower and slower (hashing?)
27 - Figure out how to allow multiple simultaneous file Volumes on a single device.
28 - Why are save/restore of device different sizes (sparse?) Yup! Fix it.
29 - Implement some way for the Console to dynamically create a job.
30 - Restore to a particular time -- e.g. before date, after date.
31 - Implement disk spooling
32 - Implement finer multiprocessing options.
33 - Solaris -I on tar for include list
34 - Enable avoid backing up archive device (findlib/find_one.c:128)
35 - Implement FileOptions (see end of this document)
36 - Implement Bacula plugins -- design API
37 - Make bcopy read through bad tape records.
38 - Need a verbose mode in restore, perhaps to bsr.
39 - bscan without -v is too quiet -- perhaps show jobs.
40 - Add code to reject whole blocks if not wanted on restore.
41 - Implement multiple simultaneous file Volumes on a single device.
42 - Start working on Base jobs.
43 - Make sure the MaxVolFiles is fully implemented in SD
44 - Flush all the daemon messages at the end of every job.
45 - Check if both CatalogFiles and UseCatalog are set to SD.
46 - Check if we can increase Bacula FD priorty in Win2000
47 - Need return status on read_cb() from read_records(). Need multiple
48 records -- one per Job, maybe a JCR or some other structure with
50 - Figure out how to do a bare metal Windows restore
51 - Fix read_record to handle multiple sessions.
52 - Program files (i.e. execute a program to read/write files).
53 Pass read date of last backup, size of file last time.
54 - Put system type returned by FD into catalog.
55 - Possibly add email to Watchdog if drive is unmounted too
56 long and a job is waiting on the drive.
57 - Strip trailing slashes from Include directory names in the FD.
58 - Use read_record.c in SD code.
59 - Why don't we get an error message from Win32 FD when bootstrap
60 file cannot be created for restore command?
61 - Need to specify MaximumConcurrentJobs in the Job resource.
62 - When Marking a file in Restore that is a hard link, also
63 mark the link so that the data will be reloaded.
64 - Restore program that errors in SD due to no tape reports
65 OK incorrectly in output.
66 - After unmount, if restore job started, ask to mount.
67 - Make Restore report an error if FD or SD term codes are not OK.
68 - Convert all %x substitution variables, which are hard to remember
69 and read to %(variable-name). Idea from TMDA.
70 - Add JobLevel in FD status (but make sure it is defined).
71 - Make Pool resource handle Counter resources.
72 - Remove NextId for SQLite. Optimize.
73 - Strip trailing / from Include
74 - Move all SQL statements into a single location.
75 - Cleanup db_update_media and db_update_pool
76 - Add UA rc and history files.
77 - put termcap (used by console) in ./configure and
78 allow -with-termcap-dir.
79 - Enhance time and size scanning routines.
80 - Fix Autoprune for Volumes to respect need for full save.
81 - Fix Win32 config file definition name on /install
82 - No READLINE_SRC if found in alternate directory.
83 - Add Client FS/OS id (Linux, Win95/98, ...).
84 - Test a second language e.g. french.
85 - Compare tape to Client files (attributes, or attributes and data)
86 - Make all database Ids 64 bit.
87 - Write an applet for Linux.
88 - Add estimate to Console commands
89 - Find solution to blank filename (i.e. path only) problem.
90 - Implement new daemon communications protocol.
91 - Remove PoolId from Job table, it exists in Media.
92 - Allow console commands to detach or run in background.
93 - Fix status delay on storage daemon during rewind.
94 - Add SD message variables to control operator wait time
95 - Maximum Operator Wait
96 - Minimum Message Interval
97 - Maximum Message Interval
98 - Send Operator message when cannot read tape label.
99 - Verify level=Volume (scan only), level=Data (compare of data to file).
100 Verify level=Catalog, level=InitCatalog
102 - Add keyword search to show command in Console.
103 - Fix Win2000 error with no messages during startup.
104 - Events : tape has more than xxx bytes.
105 - Restrict characters permitted in a Resource name.
106 - Complete code in Bacula Resources -- this will permit
107 reading a new config file at any time.
108 - Handle ctl-c in Console
109 - Implement LabelTemplate (at least first cut).
110 - Implement script driven addition of File daemon to config files.
111 - Think about how to make Bacula work better with File (non-tape) archives.
112 - Write Unix emulator for Windows.
114 - Implement new serialize subroutines
115 send(socket, "string", &Vol, "uint32", &i, NULL)
116 - Audit all UA commands to ensure that we always prompt where possible.
117 - If ./btape is called without /dev, assume argument is a Storage resource name.
118 - Put memory utilization in Status output of each daemon
119 if full status requested or if some level of debug on.
120 - Make database type selectable by .conf files i.e. at runtime
121 - gethostbyname failure in bnet_connect() continues
122 generating errors -- should stop.
123 - Set flag for uname -a. Add to Volume label.
124 - Implement throttled work queue.
125 - Check for EOT at ENOSPC or EIO or ENXIO (unix Pc)
126 - Allow multiple Storage specifications (or multiple names on
127 a single Storage specification) in the Job record. Thus a job
128 can be backed up to a number of storage devices.
129 - Implement dump label to UA
130 - Concept of VolumeSet during restore which is a list
131 of Volume names needed.
132 - Restore files modified after date
133 - Restore file modified before date
134 - Emergency restore info:
136 - Backup working directory
138 - Restore -- do nothing but show what would happen
139 - SET LD_RUN_PATH=$HOME/mysql/lib/mysql
140 - Implement Restore FileSet=
141 - Create a protocol.h and protocol.c where all protocol messages
143 - If SD cannot open a drive, make it periodically retry.
144 - Remove duplicate fields from jcr (e.g. jcr.level and jcr.jr.Level, ...).
145 - Timout a job or terminate if link goes down, or reopen link and query.
146 - Find general solution for sscanf size problems (as well
147 as sprintf. Do at run time?
148 - Concept of precious tapes (cannot be reused).
149 - Make bcopy copy with a single tape drive.
150 - Permit changing ownership during restore.
152 - Autolabel should be specified by DIR instead of SD.
153 - Find out how to get the system tape block limits, e.g.:
154 Apr 22 21:22:10 polymatou kernel: st1: Block limits 1 - 245760 bytes.
155 Apr 22 21:22:10 polymatou kernel: st0: Block limits 2 - 16777214 bytes.
158 - AutoScan (check checksum of tape)
159 - Format command = "format /dev/nst0"
163 - Seek resolution (usually corresponds to buffer size)
164 - EODErrorCode=ENOSPC or code
165 - Partial Read error code
166 - Partial write error code
167 - Nonformatted read error
168 - Nonformatted write error
169 - WriteProtected error
173 - IgnoreCloseErrors=yes
183 - FD sends unsaved file list to Director at end of job (see
185 - File daemon should build list of files skipped, and then
186 at end of save retry and report any errors.
187 - Write a Storage daemon that uses pipes and
188 standard Unix programs to write to the tape.
190 - Need something that monitors the JCR queue and
191 times out jobs by asking the deamons where they are.
192 - Enhance Jmsg code to permit buffering and saving to disk.
193 - device driver = "xxxx" for drives.
194 - restart: paranoid: read label fsf to
195 eom read append block, and go
196 super-paranoid: read label, read all files
197 in between, read append block, and go
198 verify: backspace, read append block, and go
199 permissive: same as above but frees drive
200 if tape is not valid.
202 - Ensure that /dev/null works
203 - Need report class for messages. Perhaps
204 report resource where report=group of messages
205 - enhance scan_attrib and rename scan_jobtype, and
206 fill in code for "since" option
207 - Director needs a time after which the report status is sent
208 anyway -- or better yet, a retry time for the job.
209 Don't reschedule a job if previous incarnation is still running.
210 - Some way to automatically backup everything is needed????
211 - Need a structure for pending actions:
213 - termination status (part of buffered msgs?)
214 - Concept of grouping Storage devices and job can use
215 any of a number of devices
217 Read, Write, Clean, Delete
218 - Login to Bacula; Bacula users with different permissions:
219 owner, group, user, quotas
220 - Store info on each file system type (probably in the job header on tape.
221 This could be the output of df; or perhaps some sort of /etc/mtab record.
224 - Design at hierarchial storage for Bacula.
225 - Implement FSM (File System Modules).
226 - Identify unchanged or "system" files and save them to a
227 special tape thus removing them from the standard
228 backup FileSet -- BASE backup.
229 - Turn virutally all sprintfs into snprintfs.
230 - Heartbeat between daemons.
231 - Audit M_ error codes to ensure they are correct and consistent.
232 - Add variable break characters to lex analyzer.
233 Either a bit mask or a string of chars so that
234 the caller can change the break characters.
235 - Make a single T_BREAK to replace T_COMMA, etc.
236 - Ensure that File daemon and Storage daemon can
237 continue a save if the Director goes down (this
238 is NOT currently the case). Must detect socket error,
239 buffer messages for later.
240 - Enhance time/duration input to allow multiple qualifiers e.g. 3d2h
241 - Add ability to backup to two Storage devices (two SD sessions) at
242 the same time -- e.g. onsite, offsite.
243 - Add the ability to consolidate old backup sets (basically do a restore
244 to tape and appropriately update the catalog). Compress Volume sets.
245 Might need to spool via file is only one drive is available.
246 - Compress or consolidate Volumes of old possibly deleted files. Perhaps
247 someway to do so with every volume that has less than x% valid
252 Bacula Projects Roadmap
254 last update 5 January 2003
256 Item 1: Multiple simultaneous Jobs. (done)
257 Done -- Restore part needs better implementation to work correctly
259 What: Permit multiple simultaneous jobs in Bacula.
261 Why: An enterprise level solution needs to go fast without the
262 need for the system administrator to carefully tweak
263 timing. Based on the benchmarks, during a full
264 backup, NetWorker typically hit 10 times the bandwidth to
265 the tape compared to Bacula--largely. This is probably due to
266 running parallel jobs and multi-threaded filling of buffers
267 and writing them to tape. This should also make things work
268 better when you have a mix of fast and slow machines backing
271 Notes: Bacula was designed to run multiple simultaneous jobs. Thus
272 implementing this is a matter of some small cleanups and
276 Item 2: Make the Storage daemon use intermediate file storage to buffer data.
277 Deferred -- not necessary yet.
279 What: If data is coming into the SD too fast, buffer it to
280 disk if the user has configured this option.
282 Why: This would be nice, especially if it more or less falls out
283 when implementing (1) above. If not, it probably should not
284 be given a high priority because fundamentally the backup time
285 is limited by the tape bandwidth. Even though you may finish a
286 client job quicker by spilling to disk, you still have to
287 eventually get it onto tape. If intermediate disk buffering
288 allows us to improve write bandwidth to tape, it may make
291 Notes: Whether or not this is implemented will depend upon performance
292 testing after item 1 is implemented.
295 Item 3: Write the bscan program -- also write a bcopy program.
298 What: Write a program that reads a Bacula tape and puts all the
299 appropriate data into the catalog. This allows recovery
300 from a tape that is no longer in the database, or it allows
301 re-creation of a database if lost.
303 Why: This is a fundamental robustness and disaster recovery tool
304 which will increase the comfort level of a sysadmin
305 considering adopting Bacula.
307 Notes: A skeleton of this program already exists, but much work
308 needs to be done. Implementing this will also make apparent
309 any deficiencies in the current Bacula tape format.
312 Item 4: Implement Base jobs.
314 What: A base job is sort of like a Full save except that you
315 will want the FileSet to contain only files that are unlikely
316 to change in the future (i.e. a snapshot of most of your
317 system after installing it). After the base job has been run,
318 when you are doing a Full save, you can specify to exclude
319 all files saved by the base job that have not been modified.
321 Why: This is something none of the competition does, as far as we know
322 (except BackupPC, which is a Perl program that saves to disk
323 only). It is big win for the user, it makes Bacula stand out
324 as offering a unique optimization that immediately saves time
327 Notes: Big savings in tape usage. Will require more resources because
328 the e. DIR must send FD a list of files/attribs, and the FD must
329 search the list and compare it for each file to be saved.
332 Item 5: Implement Label templates
334 What: This is a mechanism whereby Bacula can automatically create
335 a tape label for new tapes according to a detailed specification
336 provided by the user.
338 Why: It is a major convenience item for folks who use automated label
341 Notes: Bacula already has a working form of automatic tape label
342 creation, but it is very crude. The design for the complete
343 tape labeling project is already documented in the manual.
346 Item 6: Write a regression script.
349 What: This is an automatic script that runs and tests as many features
350 of Bacula as possible. The output is compared to previous
351 versions of Bacula and any differences are reported.
353 Why: This is an enormous help in preventing introduction of new
354 errors in parts of the program that already work correctly.
356 Notes: This probably should be ranked higher, it's something the typical
357 user doesn't see. Depending on how it's implemented, it may
358 make sense to defer it until the archival tape format and
359 user interface mature.
362 Item 7: GUI for interactive restore
363 Item 8: GUI for interactive backup
365 What: The current interactive restore is implemented with a tty
366 interface. It would be much nicer to be able to "see" the
367 list of files backed up in typical GUI tree format.
368 The same mechanism could also be used for creating
369 ad-hoc backup FileSets (item 8).
371 Why: Ease of use -- especially for the end user.
373 Notes: Rather than implementing in Gtk, we probably should go directly
374 for a Browser implementation, even if doing so meant the
375 capability wouldn't be available until much later. Not only
376 is there the question of Windows sites, most
377 Solaris/HP/IRIX, etc, shops can't currently run Gtk programs
378 without installing lots of stuff admins are very wary about.
379 Real sysadmins will always use the command line anyway, and
380 the user who's doing an interactive restore or backup of his
381 own files will in most cases be on a Windows machine running
385 Item 9: Add SSL to daemon communications.
387 What: This provides for secure communications between the daemons.
389 Why: This would allow doing backup across the Internet without
390 privacy concerns (or with much less concern).
392 Notes: The vast majority of near term potential users will be backing up
393 a single site over a LAN and, correctly or not, they probably
394 won't be concerned with security, at least not enough to go to
395 the trouble to set up keys, etc. to screw things down. We suspect
396 that many users genuinely interested in multi-site backup
397 already run some form of VPN software in their internetwork
398 connections, and are willing to delegate security to that layer.
401 Item 10: Define definitive tape format.
404 What: Define that definitive tape format that will not change
405 for the next millennium.
407 Why: Stability, security.
409 Notes: See notes for item 11 below.
412 Item 11: New daemon communication protocol.
414 What: The current daemon to daemon protocol is basically an ASCII
415 printf() and sending the buffer. On the receiving end, the
416 buffer is sscanf()ed to unpack it. The new scheme would
417 be a binary format that allows quick packing and unpacking
418 of any data type with named fields.
420 Why: Using binary packing would be faster. Named fields will permit
421 error checking to ensure that what is sent is what the
422 receiver really wants.
424 Notes: These are internal improvements in the interest of the
425 long-term stability and evolution of the program. On the one
426 hand, the sooner they're done, the less code we have to rip
427 up when the time comes to install them. On the other hand, they
428 don't bring an immediately perceptible benefit to potential
429 users. Item 10 and possibly item 11 should be deferred until Bacula
430 is well established with a growing user community more or
431 less happy with the feature set. At that time, it will make a
432 good "next generation" upgrade in the interest of data
438 ======================================================
440 It is somewhat like a Full save becomes an incremental since
441 the Base job (or jobs) plus other non-base files.
443 - New BaseFile table that contains:
444 JobId, BaseJobId, FileId (from Base).
445 i.e. for each base file that exists but is not saved because
446 it has not changed, the File daemon sends the JobId, BaseId,
447 and FileId back to the Director who creates the DB entry.
448 - To initiate a Base save, the Director sends the FD
449 the FileId, and full filename for each file in the Base.
450 - When the FD finds a Base file, he requests the Director to
451 send him the full File entry (stat packet plus MD5), or
452 conversely, the FD sends it to the Director and the Director
453 says yes or no. This can be quite rapid if the FileId is kept
454 by the FD for each Base Filename.
455 - It is probably better to have the comparison done by the FD
456 despite the fact that the File entry must be sent across the
458 - An alternative would be to send the FD the whole File entry
459 from the start. The disadvantage is that it requires a lot of
460 space. The advantage is that it requires less communications
462 - The Job record must be updated to indicate that one or more
464 - At end of Job, FD returns:
465 1. Count of base files/bytes not written to tape (i.e. matches)
466 2. Count of base file that were saved i.e. had changed.
467 - No tape record would be written for a Base file that matches, in the
468 same way that no tape record is written for Incremental jobs where
469 the file is not saved because it is unchanged.
470 - On a restore, all the Base file records must explicitly be
471 found from the BaseFile tape. I.e. for each Full save that is marked
472 to have one or more Base Jobs, search the BaseFile for all occurrences
474 - An optimization might be to make the BaseFile have:
480 This would avoid the need to explicitly fetch each File record for
481 the Base job. The Base Job record will be fetched to get the
482 VolSessionId and VolSessionTime.
483 =========================================================
485 ==========================================================
487 For each Incremental job that is run, there may be files that
488 were found but not saved because they were locked (this applies
489 only to Windows). Such a system could send back to the Director
490 a list of Unsaved files.
492 - New UnSavedFiles table that contains:
496 - Then in the next Incremental job, the list of Unsaved Files will be
497 feed to the FD, who will ensure that they are explicitly chosen even
498 if standard date/time check would not have selected them.
499 =============================================================
503 =============================================================
505 Request For Comments For File Backup Options
508 Subject: File Backup Options
511 A few days ago, a Bacula user who is backing up to file volumes and
512 using compression asked if it was possible to suppress compressing
513 all .gz files since it was a waste of CPU time. Although Bacula
514 currently permits using different options (compression, ...) on
515 a directory by directory basis, it cannot do it on a file by
516 file basis, which is clearly what was desired.
518 Proposed Implementation:
519 To solve this problem, I propose the following:
521 - Add a new Director resource type called FileOptions.
523 - The FileOptions resource will have records for all
524 options that can currently be specified on the Include record
525 (in a FileSet). Examples below.
527 - The FileOptions resource will permit an exclude option as well
528 as a number of additional options.
530 - The heart of the FileOptions resource is the ability to
531 supply any number of ApplyTo records which specify POSIX
532 regular expressions. These ApplyTo regular expressions are
533 applied to the fully qualified filename (path and all). If
534 one matches, then the FileOptions will be used.
536 - When an ApplyTo specification matches an included file, the
537 options specified in the FileOptions resource will override
538 the default options specified on the Include record.
540 - Include records will be modified to permit referencing one or
541 more FileOptions resources. The FileOptions will be used
542 in the order listed on the Include record and the first
543 one that matches will be applied.
545 - Options (or specifications) currently supplied on the Include
546 record will be deprecated (i.e. removed in a later version a
547 year or so from now).
549 - The Exclude record will be deprecated as the same functionality
550 can be obtained by using an Exclude = yes in the FileOptions.
553 The following records can appear in the FileOptions resource. An
554 asterisk preceding the name indicates a feature not currently
558 - Compression= (GZIP, ...)
559 - Signature= (MD5, SHA1, ...)
561 - OneFs= (yes/no) - remain on one filesystem
562 - Recurse= (yes/no) - recurse into subdirectories
563 - Sparse= (yes/no) - do sparse file backup
564 - *Exclude= (yes/no) - exclude file from being saved
565 - *Reader= (filename) - external read (backup) program
566 - *Plugin= (filename) - read/write plugin module
569 - verify= (ipnougsamc5) - verify options
572 - replace= (always/ifnewer/ifolder/never) - replace options currently
574 - *Writer= (filename) - external write (restore) program
578 Currently options specifying compression, MD5 signatures, recursion,
579 ... of a FileSet are supplied on the Include record. These will now
580 all be collected into a FileOptions resource, which will be
581 specified on the Include in place of the options. Multiple FileOptions
582 may be specified. Since the FileOptions contain regular expressions
583 that are applied to the full filename, this will give the ability
584 to specify backup options on a file by file basis to whatever level
593 Include = compression=GZIP signature=MD5 {
602 Include = FileOptions=Opts {
613 That's a lot more to do the same thing, but it gives the ability to
614 apply options on a file by file basis. For example, suppose you
615 want to compress all files but not any file with extensions .gz or .Z.
616 You could do so as follows:
620 Include = FileOptions=NoCompress FileOptions=Opts {
628 ApplyTo = /*.?*/ # matches all files
633 # Note multiple ApplyTos are ORed
634 ApplyTo = /*.gz/ # matches .gz files */
635 ApplyTo = /*.Z/ # matches .Z files */
638 Now, since the NoCompress FileOptions is specified first on the
639 Include line, any *.gz or *.Z file will have an MD5 signature computed,
640 but will not be compressed. For all other files, the NoCompress will not
641 match, so the Opts options will be used which will include GZIP
645 - Is it necessary to provide some means of ANDing regular expressions
646 and negation? (not currently planned)
648 e.g. ApplyTo = /*.gz/ && !/big.gz/
650 - I see that Networker has a "null" module which, if specified, does not
651 backup the file, but does make an record of the file in the catalog
652 so that the catalog will reflect an exact picture of the filesystem.
653 The result is that the file can be "seen" when "browsing" the save
654 sets, but it cannot be restored.
656 Is this really useful? Should it be implemented in Bacula?
659 After implementing the above, the user will be able to specify
660 on a file by file basis (using regular expressions) what options are
661 applied for the backup.
662 ====================================
664 =========================================
665 Proposal by Bill Sellers
667 Return-Path: <w.a.sellers@larc.nasa.gov>
668 Received: from post.larc.nasa.gov (post.larc.nasa.gov [128.155.4.45]) by matou.sibbald.com (8.11.6/8.11.6) with ESMTP id h0ELUIm07622 for <kern@sibbald.com>; Tue, 14 Jan 2003 22:30:18 +0100
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670 Message-Id: <5.1.0.14.2.20030114153452.028dbae8@pop.larc.nasa.gov>
671 X-Sender: w.a.sellers@pop.larc.nasa.gov
672 X-Mailer: QUALCOMM Windows Eudora Version 5.1
673 Date: Tue, 14 Jan 2003 16:30:18 -0500
674 To: Kern Sibbald <kern@sibbald.com>
675 From: Bill Sellers <w.a.sellers@larc.nasa.gov>
676 Subject: Re: [Bacula-users] Bacula remote storage?
677 In-Reply-To: <1042565382.1845.177.camel@rufus>
678 References: <5.1.0.14.2.20030114113004.0293a210@pop.larc.nasa.gov> <5.1.0.14.2.20030113170650.028dad88@pop.larc.nasa.gov> <5.1.0.14.2.20030113170650.028dad88@pop.larc.nasa.gov> <5.1.0.14.2.20030114113004.0293a210@pop.larc.nasa.gov>
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683 At 06:29 PM 1/14/2003 +0100, you wrote:
686 >Well, if you cannot put a Bacula client on the machine,
687 >then it is a big problem. If you know of some software
688 >that can do what you want, let me know, because I
689 >really just don't know how to do it -- at least not
695 We have been able to get Amanda to use the HSM as a storage
696 device. Someone here wrote a driver for Amanda. BUT, Amanda doesn't
697 handle Windows systems very well (or at all without Samba). So I am
698 looking for a backup system that has a Windows client. I really like the
699 Windows integration of Bacula.
701 From the command line, its rather trivial to move the data around. We use
704 tar cf - ./files | gzip -c | rsh hsm dd of=path/file.tgz
706 or if you use GNU tar:
708 tar czf hsm:path/file.tgz ./files
710 One idea for you to consider; Sendmail offers pipes in the aliases file;
711 (mailpipe: "|/usr/bin/vacation root") and Perl supports pipes in the
712 "open" statement (open FILE, "|/bin/nroff -man";) Could you could make a
713 pipe available, as a storage device? Then we could use any command that
714 handles stdin as a storage destination.
721 #Password is not used in rsh, but might be used in ftp.
722 Device = "| gzip -c | rsh hsm dd of=path/file.tgz"
729 Password = "foobar&-"
730 Device = "| ncftpput -c hsm /path/file.bacula"
734 >If you have some local storage available, you could
735 >use Bacula to backup to disk volumes, then use some
736 >other software (ftp, scp) to move them to the HSM
737 >machine. However, this is a bit kludgy.
740 It is, but maybe worth a try. Is there some function in Bacula to put
741 variables in filenames? i.e. backup.2003-01-15.root
748 w.a.sellers@larc.nasa.gov
750 ==============================================
751 The Project for the above
753 I finally realized that this is not at all
754 the same as reader/writer programs or plugins,
755 which are alternate ways of accessing the
756 files to be backed up. Rather, it is an alternate
757 form of storage device, and I have always planned
758 that Bacula should be able to handle all sorts
761 So, I propose the following phases:
763 1. OK from you to invest some time in testing
764 this as I implement it (requires that you
765 know how to download from the SourceForge
766 cvs -- which I imagine is a piece of cake
769 2. Dumb implementation by allowing a device to
770 be a fifo for write only.
771 Reason: easy to implement, proof of concept.
773 3. Try reading from fifo but with fixed block
775 Reason: proof of concept, easy to implement.
777 4. Extend reading from fifo (restores) to handle
779 Reason: requires some delicate low level coding
780 which could destabilize all of Bacula.
782 5. Implementation of above but to a program. E.g.
783 Device = "|program" (not full pipeline).
784 Reason: routines already exist, and program can
785 be a shell script which contains anything.
787 6. Add full pipeline as a possibility. E.g.
788 Device = "| gzip -c | rsh hsm dd of=path/file.tgz"
789 Reason: needs additional coding to implement full
790 pipeline (must fire off either a shell or all
791 programs and connect their pipes).
793 There are a good number of details in each step
794 that I have left out, but I will specify them at
795 every stage, and there may be a few changes as things
796 evolve. I expect that to get to stage 5 will take a
797 few weeks, and at that point, you will have
798 everything you need (just inside a script).
799 Stage 6 will probably take longer, but if this
800 project pleases you, what we do for 5 should
801 be adequate for some time.
805 =============================================
807 Done: (see kernsdone for more)
808 - Look into Pruning/purging problems or why there seem to
809 be so many files listed each night.
810 - Fix cancel in find_one -- need jcr.
811 - Cancel does not work for restore in FD.
812 - Write SetJobStatus() function so cancel status not lost.
813 - Add include list to end of chain in findlib
814 - Zap sd_auth_key after use
815 - Add Bar code reading capabilities (new mtx-changer)
816 - Figure out some way to automatically backup all local partitions
817 - Make hash table for linked files in findlib/find_one.c:161
819 - Rewrite find_one.c to use only pool_memory instead of
820 alloca and malloc (probably not necessary).
821 - Make sure btraceback goes into /sbin not sysconf directory.
822 - InitVerify is getting pruned and it shouldn't (document it)
823 - Make 1.28c release ??? NO do 1.29 directly
824 - Set timeout on opening fifo for save or restore (findlib)
825 - Document FIFO storage device.
826 - Document fifo and | and <
829 - Get correct error status from run_program or open_bpipe().