Re: [Bacula-users] DVD backup

2010-04-02 Thread Wes Hardaker
 On Fri, 2 Apr 2010 11:58:42 +0200, Matija Nalis mnalis+bac...@carnet.hr 
 said:


MN Of course, there are disadvantages too, especially if HDD is
MN connected all the time.

Yep.  But if you're gonna go the paranoid route you also need to
consider fire and should be mailing your tapes/dvds/hard-drives to an
offsite backup location as well.

It's all about the trade-offs I agree.  The good news is that in 20
years of unix work I've yet to type rm -rf /.

MN You may alleviate some of the issues by buying stack od external HDDs
MN and rotating them on/off-site, but that will again lose you the
MN convenience (and gets more pricey). 

I actually think there is a way to do a write-once mode to a HDD if you
like too, but I can't remember where I saw that operation before.  If
nothing else, use dd and the right starting block number and treat it
the same way you would a tape or DVD (IE, no real file system).

MN The main problem with DVDs however remains -- they are just too small
MN and too slow nowdays for anything but small sites...

Don't forget fragile and subject to aging.  But they do fit in a
fire-safe nicely!
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Re: [Bacula-users] Is that ok using Bacula to write on DVDs?

2009-05-07 Thread Wes Hardaker
 On Wed, 06 May 2009 12:16:49 -0600, alexan...@nautae.eti.br said:

 DVDs are likely less reliable than any form of external disk.

a Are you sure about that?

a I'm not using DVD-RW, just DVD-R.

Ah, I didn't realize that.  I had been assuming that you were rewriting
existing disks.

DVD-R's are much better for longevity (I believe) than DVD-RWs.  That
being said, the recently shown life expectancy of a DVD-R is somewhere
on the order of 5 years.  [Though I don't know what percentage of failure
they're using to define that timing mark]

You might consider re-reading the disk, at least, immediately after
burning and comparing the checksum of the volume to the checksum written
to the disk to ensure their the same.  That'd provide a lot more confidence.

a DVDs are made to mass data distribution. USB data sticks are made just
a to move data from a place to another.

Well, I was assuming a hard drive and not a USB stick.

In theory, I'd actually trust solid state drives better (like USB
drives) more than disks or DVDs because there are less moving parts.
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Re: [Bacula-users] Is that ok using Bacula to write on DVDs?

2009-05-06 Thread Wes Hardaker
 On Tue, 05 May 2009 13:15:39 -0600, alexan...@nautae.eti.br said:

a Ok, I gave up of doing DVD writing by Bacula.

FYI, I've been doing it for 2 years or so; once it was up and running
it works fairly well.  I do save the parts to a separate folder after
writing them to the DVD just to make sure, but most of the time they
just get deleted.  Occasionally an older disk will fail to burn properly
and I either need to hard-burn the parts (again) to the disk or simply
mark the disk as bad in the pool and let bacula recover based on
that knowledge.

a I'm not confident about using removable usb disk because it's not a  
a safe made media. Of course DVD too, but I think DVDs are more reliable  
a than usb disk, there isn't electricity to read the data.

DVDs are likely less reliable than any form of external disk.  That
being said, external disks are still more than a stack of DVDs.
Eventually you'll spend as much as an external disk though.  DVDs don't
handle writing to them a huge number of times, so eventually they go bad
and need to be thrown away (eventually just from scratches, no matter
*how* careful I try to be).

The biggest problem in my book is that I don't want the external disk
spinning while I'm awake for noise reasons; I'd need a power-up/down
before/after the backup.
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Re: [Bacula-users] Bacula-usersForcing DVD write speed

2009-03-16 Thread Wes Hardaker
 On Fri, 13 Mar 2009 23:15:39 -0600, Devin Reade g...@gno.org said:

DR Am I correct that the only way to add 'speed=1' to the growisofs
DR command is to modify the dvd-handler script?

Yep.  The script has lots of hard coded values.  I also recommend using
-dvd-compat as long as you're modifying it.

(I've had to use nothing beyond 2.0.X as well)
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Re: [Bacula-users] dvd problems

2009-02-05 Thread Wes Hardaker
 On Wed, 21 Jan 2009 21:13:26 +0100, Bruno Friedmann br...@ioda-net.ch s
aid:

BF I remember some message about broken code in 2.4 (Not tested as it
BF should have been) And some works on the 2.5 (next 3.0 have been made
BF )

BF Before you downgrade to the 2.0, perharps you could find a way as
BF you have the specs in place, to give a try to 2.5 and so help all
BF the project to keep the feature up to date and running without this
BF annoying bugs.

Well, I compiled 2.5 (from a tar-ball, not from the code repository) and
installed it and just ran a few backup tests to DVD media.  The first
incremental I ran wrote two partitions to the disk and ended just fine.

The second (a full) however, failed to write the DVD due to the typical
problem I've been seeing:

JobId 3757: Volume BaculaDVDTwo0140 previously written, moving to end of data
.
JobId 3757: Error: Bacula cannot write on DVD Volume BaculaDVDTwo0140 because
: The sizes do not match! Volume=1125393071 Catalog=286543567
JobId 3757: Marking Volume BaculaDVDTwo0140 in Error in Catalog.
JobId 3757: Please mount Volume BaculaDVDTwo0124 or label

Note...  The Volume size is correct, not the catalog.  IE, the DVD
writing process has succeeded just fine and the two parts from the first
backup job are on the disk and are the right size (I know because I
lightly hacked the dvd-handler to keep the older ones around for a bit).

The catalog, however, seems to have the wrong notion of what the proper
size should be.  The question is why???

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Re: [Bacula-users] dvd problems

2009-01-21 Thread Wes Hardaker
 On Wed, 21 Jan 2009 18:44:41 +0200, Jari Fredriksson ja...@iki.fi 
 said:

JF I suggest you download 2.0.2 from Sourceforge and use that. Backup 
JF Restore both works with it, but I have no idea about Recycle. I have
JF 100 DVD+RW discs, and I'm now writing to #30. Takes some time until
JF all 100 is full...

I've run DVD backups on a 2.0.X system for 2+ years without any
troubles (once I patched dvd-handler as noted in previous messages; the
patch idea was never adopted into the main line code for some reason
even though it's a trivial change).

I've since upgraded to 2.4 and DVDs get written just fine still, but the
catalog system somehow gets confused about the archive size.  It
frequently marks the disk as bad because the catalog size of the volume
doesn't match the real size.  Looking at the previous writes, the disk
is actually correct but bacula is not.  Go figure.  I'll probably
downgrade to 2.0 again as there is no reason why DVDs can't work (they
work just fine) and there is no reason why they shouldn't be supported.

I suspect there is even enough people interested and willing to help
out, judging by recent mailings, but for some reason the support is
going to be dropped instead???
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Re: [Bacula-users] Bacula-usersMoving from Tape to DVD

2008-11-13 Thread Wes Hardaker
 On Wed, 12 Nov 2008 20:50:30 +0200, Jari Fredriksson [EMAIL 
 PROTECTED] said:

JF Ok, a happy camper!

Well, yes.  But I've taken some preventative measures too.  I also have
modified the script to copy all the spooled files to a different
directory so that I can verify they all made it to the DVD before
deleting them.  It was frequently a problem *until* I added the
dvd-compat flag that bacula would write the DVD but the file wouldn't be
on it.  Especially if they were small.

JF Which version of Bacula you are using?

I'm currently using an older one (2.0.3).  I need to upgrade at some
point soon..

JF I think -dvd-compat fixes some dvd writing issues, but I have no
JF problems there. DVD will be written fine, but the problems are in
JF catalog updating and using recucled volumes.

I saw your notes but couldn't interpret anything from them to help ya,
so I didn't respond...

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Re: [Bacula-users] Bacula-usersMoving from Tape to DVD

2008-11-12 Thread Wes Hardaker
 On Fri, 7 Nov 2008 22:14:29 +0200, Jari Fredriksson [EMAIL PROTECTED] 
 said:

JF Now wondering best practises with DVD backups.

The biggest one for me was adding -dvd-compat to the self.growparams
settings in /etc/bacula/dvd-handler (near line 112)
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Re: [Bacula-users] Bacula-usersway too large incremental backup...

2007-12-26 Thread Wes Hardaker
 SP == Sebastian Perkins [EMAIL PROTECTED] writes:

SP 2) Is there a way to show the list of files being saved from a job/client ? 

Within bconsole, you can use list files jobid=NNN where NNN is the
jobid that last ran.

I wouldn't think that rsynced files would be a problem, at least if you
weren't doing anything odd.
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Re: [Bacula-users] All the problems with Bacula

2007-11-21 Thread Wes Hardaker
 DL == Dan Langille [EMAIL PROTECTED] writes:

 Bacula is incredibly complex to setup. Its taken 4 months and its
 still not working correctly.

DL You are unique.

I doubt he's unique.  I constantly think to myself wow, bacula is
really cool; but why isn't it doing that?

The configuration is complex to set up (but with flexibility always
comes complexity; and bacula is very flexible).  Fortunately there are
many good resources to look at, but sorting through them all to find
what you want is sometimes difficult.

Personally, I've been using it for 2 months.  On day one I got it up and
running and backing up multiple computers (windows and linux both).
But, I've still had issues with it backing up files I didn't want it to
(no doubt my fault), failing to write DVDs properly (questionable fault,
but I think I've fixed that through a patch to the dvd-handler), failing
to recycle volumes that I believe it should (no doubt my fault).  But
even after all that, the flexibility is very necessary for me and I'm
going to keep plugging away at it (just yesterday I had to re-learn that
volume longevity for previously created volumes is in the DB, not
relearned from a modified config.  Which makes sense, but when you're
editing the config it's easy to forget).

So, let me say: thanks to all the developers of bacula.  I know what
it's like to run an OSS project and get yelled at (I've started a number
at this point).  Realize that the vast majority of your users are very
happy with your work (myself included).  Kudos to you all for your time
and even more importantly: your patience in helping us through
problems.  Outstanding support!

One thing that I did with one of my more successful projects was to
think of ways to reduce the confusion based on the questions sent to the
mailing list.  When I got a ton of questions in area X, I decided that
area X needed usability improvements.  My thinking about it always
resulted in less questions about X in the future, which was a plus.
Something to consider (or ignore) at will...

Now, the down side is that the questions didn't stop.  They just got
harder.  If you remove the easier-to-understand problems users start
asking questions about the harder areas of a project because they get
farther ;-)

Final word: I love bacula and wouldn't switch away from it if I had a
choice.  But I'm still on the learning curve, and it isn't small.  But
very very worth it.  Thanks again!

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Re: [Bacula-users] Bacula-usersDVD+RW overwrites

2007-11-05 Thread Wes Hardaker
 HM == Hydro Meteor [EMAIL PROTECTED] writes:

HM For those in Bacula DVD userland who are using DVD+RWs, it strikes me as if
HM 1,000 overwrites is really not all that bad.

I do use DVD+RW to back up important parts of my server (and it uses a
disk cache for anything not on it).  I've learned a few things during
using this process.

For one thing, the default dvd-handler doesn't turn on the -dvd-compat
flag which was causing me problems with a part not getting written and
then later readable.  I'm not entirely sure what it does, but I turned
it on a week or two ago and suddenly my backups are much more reliable.

(I've been meaning to post here with the experience, but I was waiting
to make sure it made a difference.  I'm positive it has at this point
though I don't feel comfortable yet it's completely solved it)

In dvd-handler line 112 add the flag to the list of default flags:

  self.growparams =  -dvd-compat -A 'Bacula Data' -input-charset=default -i
so-level 3 -pad  + \
-p 'dvd-handler / growisofs' -sysid 'BACULADATA' -R

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Re: [Bacula-users] missing part on a DVD... why? what to do?

2007-09-06 Thread Wes Hardaker
 AL == Arno Lehmann [EMAIL PROTECTED] writes:

AL As of now, Bacula does not check for these condition, it only takes 
AL the date and time of the last succesful job for a given client/fileset 
AL combination and saves files with a timestamp after that moment.

AL Or, in short, your proposed solution will not work.

Ah.  Well, thanks for the notes.  That does mean, though, that I can
invalidate the job that created the broken volume so the next
incremental would effectively back up from the one previous to it?

(though this doesn't work if another incremental had run since then; IE,
you'd have to nuke the last job before the next incremental gets run or
nuke all jobs after the broken one).

AL All IMO and without actually reading the code, by the way.

As I mentioned; same here ;-)
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Re: [Bacula-users] missing part on a DVD... why? what to do?

2007-09-05 Thread Wes Hardaker
 AL == Arno Lehmann [EMAIL PROTECTED] writes:

(first: thanks for the help!)

 4) assuming that some of the archives are bad, what's the best way to
 fix the issue?  Can I mark the volume as Error and will bacula
 automatically re-archive the files that were in that volume again on
 the next run through the various backup schedules?  (the brunt of the
 question is really: do files get re-backed up automatically when a
 volume is marked in error, or does something else need to be done).

AL That won't work. It will be best to check which jobs have their data 
AL on the disks in question (using the 'query' command) and manually 
AL re-run any jobs you need.

That won't work if it's an incremental backup, right?  Because
re-running it will take an incremental from the last one. 

 5) Should I give up and buy a tape drive (ha ha; sigh)

AL Seriously, in my opinion that would be the best thing to do... even 
AL using a used DLT or LTO drive will probably be more reliable than DVD 
AL backup, and tape backups, in my experience, require much less 
AL administration than DVD ones, so the extra money you spend will result 
AL in less time to operate Bacula in the future.

Sigh...  You're right, of course, but I was trying to do this without a
cost-outlay since I have a DVD writer already ;-) IE, cheap but
functional at-home backup solution.

Hmm...  I wonder if rewriting the DVD backend to write to a ISO mounted
in loopback and then burn the iso would be more reliable.  It'd take
more scratch disk space, but wouldn't suffer from problems like this.
It'd also be a lot slower since you'd have to reburn the whole disk when
you added a part to the ISO.

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Re: [Bacula-users] missing part on a DVD... why? what to do?

2007-09-05 Thread Wes Hardaker
 AL == Arno Lehmann [EMAIL PROTECTED] writes:

AL That might be one option, but I guess the main problem is that Bacula 
AL simply doesn't handle things very well when the writing-to-disk phase 
AL has problems. You'd need something more integrated into the SD, or 
AL implement some way to signal re-try this part to the next disk to 
AL the SD.

I have a hard time believing there is no way to say whoops, I
accidentally lost volume 5 in a fire  Please continue as if it
doesn't exist and all the files that were on it should no longer exist
in the catalog.  That's really what I need at the moment (I know which
volumes are bad).

Trying to guess at how the schema works (danger!) it looks like you
might be able to look at the jobmedia table and use it to remove stuff
for a broken volume from the Files table so it would get backed up next
time and suddenly be needed again.  But that's based on not reading any
documentation on what the columns actually mean; but if someone says I'm
on the right track I might go down that road :-)


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Re: [Bacula-users] Bacula-usersFedora 7 rpms

2007-08-06 Thread Wes Hardaker
 FS == Felix Schwarz [EMAIL PROTECTED] writes:

FS Thanks for your offer but Andreas Thienemann already completed that
FS task: Bacula will be in Fedora 8 :-)

Actually, it's now in both 7 and fc6 extras too!  W00t!

But, the one issue is that I don't think it can be used with DVD
production since the necessary dvd+rw patch isn't in that spec, so you
still need a local install of that.
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Re: [Bacula-users] Bacula-usersFedora 7 rpms

2007-07-25 Thread Wes Hardaker
 D == Dimitrios  [EMAIL PROTECTED] writes:

D Are there any plans to create Fedora 7 rpms on one of the popular
D fedora repositories, like Freshrpms.net, Livna, fedora extras, etc?

I actually have a fedora rpm created for bacula for FC6 that I've been
using (or not actually).  I've considered sponsoring an RPM for the
fedora tree (there is no extras in F7, it's just f7 and includes
everything including contributed packages).

But, I haven't gotten that far yet because I have other packages in the
approval process now and was waiting to finish those first.  And I was
waiting to actually get bacula working for me with DVDs (or else
maintaining the RPM won't really be worth it for me ;-).

I can supply the current RPM and patches to anyone else that wants to
take the task on though if anyone wants to do it instead.
-- 
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 and much more difficult to find.  -- Terry Pratchett

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[Bacula-users] missing part on a DVD... why? what to do?

2007-06-13 Thread Wes Hardaker

I've just recently been playing with bacula (2.0.3 in self-compiled
rpms on fedora)...

I have it working with DVDs and the situation in question as I can
tell went like this:
  - it was backing up the main system.
  - I believe it tried to store the information in: BaculaDVD0009.8.
  - However, the disc doesn't actually contain that part, but the log
shows success:

12-Jun 23:05 machine-sd: Ready to append to end of Volume BaculaDVD0009 
part=8 size=3040970041
12-Jun 23:05 machine-sd: Job write elapsed time = 00:00:04, Transfer rate = 
57.92 K bytes/second
12-Jun 23:05 machine-sd: Part 8 (233000 bytes) written to DVD.

So the questions I have that I can't seem to answer via manuals nor
via bconsoles interface is:

1) what happened...  I doubt anyone can answer this.
   the disc is not full yet and mounting it shows about 3G in use:
  /dev/hda   2972194   2972194 0 100% /mnt/cdrom
   and the missing part was very small:
  FD Bytes Written:   228,657 (228.6 KB)
  SD Bytes Written:   231,716 (231.7 KB)


2) what to do about it?  Choices are, I think:
2a) invalidate the whole volume
2b) somehow tell bacula that just that part is missing and to rewrite
just that part...  I can't find anywhere that the part number is
actually stored though.  I did a quick search of even the DB
tables and came up blank.  I don't believe this is user-editable
data (which is fine).

3) how do I prevent this in the future?  Doubt anyone can answer this
   either, since it would require answering (1) above.

(I turned on tracing on the sd to figure out this problem and it
finally pointed out that the next backup was failing because it tried
to mount the disc and couldn't find BaculaDVD0009.8...  I didn't have
tracing on during the failure time though unfortunately)
-- 
In the bathtub of history the truth is harder to hold than the soap,
 and much more difficult to find.  -- Terry Pratchett

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Re: [Bacula-users] missing part on a DVD... why? what to do?

2007-06-13 Thread Wes Hardaker
 AL == Arno Lehmann [EMAIL PROTECTED] writes:

AL It might be that the part file in question still is in your temporary 
AL storage directory.

I should have mentioned that I looked there, and it's not there.

AL Do you have Write Part After Job set in the job 
AL definition?

Yep.  (though it's in the JobDefs referral)

 the disc is not full yet and mounting it shows about 3G in use:
 /dev/hda   2972194   2972194 0 100% /mnt/cdrom
 and the missing part was very small:
 FD Bytes Written:   228,657 (228.6 KB)
 SD Bytes Written:   231,716 (231.7 KB)

AL I did experience problems with small part files myself and think that, 
AL for (some) DVD writers, a session has to have certain minimum size. No 
AL hard facts, though, that's just what I observed quite a while ago.

huh.  that'd be odd.  It should be easy to test too, cause 2
back-to-back incrementals should hit it.

AL My workaround (or rather the one I implemented for my customer) was to 
AL set Write Part after Job to No for all jobs except the BackupCatalog 
AL one. Like this, All normal jobs would have a good chance to get written 
AL correctly, and only the Catalog backup was in danger of ending up corrupted.

Interesting.  I'll certainly think on that one.

 2) what to do about it?  Choices are, I think:
 2a) invalidate the whole volume
 2b) somehow tell bacula that just that part is missing and to rewrite
 just that part...

AL Yes, look for the part file in the spooling directory you set up for the 
AL DVD storage device.

Unfortunately, no go there...

Thanks for the help.  I'll see if I can duplicate the issue...
-- 
In the bathtub of history the truth is harder to hold than the soap,
 and much more difficult to find.  -- Terry Pratchett

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