So I can't quite grasp this.
I have a directory which is part of / that contains virtual disk images, 
/opt/virtual/images.
I think I want to set that directory to do sparse files since I don't allocate 
the complete disk when I create a VM.
So I start with:

FileSet {
  Name = puppetmaster-fileset
  Include {
    Options {
      signature = MD5
      noatime = yes
    }
    File = /boot
    File = /
    File = /var/lib/mysql
  }
  Exclude {
    File = /var/spool/bacula
    File = /tmp
    File = /proc
    File = /tmp
    File = /.journal
    File = /.fsck
  }
}

I should change it to:

FileSet {
  Name = puppetmaster-fileset
  Include {
    Options {
      signature = MD5
      noatime = yes
    }
    File = /boot
    File = /
    File = /var/lib/mysql
  }
  Exclude {
    File = /opt/virtual/images
    File = /var/spool/bacula
    File = /tmp
    File = /proc
    File = /tmp
    File = /.journal
    File = /.fsck
  } 
   Include {
    Options {
      signature = MD5
      noatime = yes
      sparse = yes
    }
    File = /opt/virtual/images
}

Is that right?



-----Original Message-----
From: Bill Arlofski [mailto:waa-bacula AT revpol DOT com] 
Sent: Monday, November 24, 2014 5:24 PM
To: bacula-users AT lists.sourceforge DOT net
Subject: Re: [Bacula-users] How to make bacula handle sparse files correctly

On 11/24/2014 12:14 PM, Polcari, Joe (Contractor) wrote:
> I added an instance of docker to one of my systems. This added a sparse file 
> of 10 GB with a "real" size of 100 GB.
> This should have only added 10GB to my full backup but it added 100GB.
> Is there any way to tell bacula to handle sparse files correctly?

Hi Joe,

There is an option for the Include stanza of a Fileset:

sparse = yes

Which works correctly with sparse files. We had to add this option to one of
our filesets when a newer version of of our mail server changed one of its db
files to  sparse file.

> If so, why isn't this the default? Shouldn't it be?

Not sure. Unless the code that deals with sparse files adds additional
overhead when it is typically not required.

With our setup, I have _one_ file that is sparse so it is excluded using the
wild = option in the bigger Include stanza of a Fileset, then Included
specifically in a File =  option in the second Include stanza which has the
sparse = yes option.


Maybe someone else can comment re: default being sparse = no

Hope this helps.

Bill


-- 
Bill Arlofski
Reverse Polarity, LLC
http://www.revpol.com/
-- Not responsible for anything below this line --

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