Re: [Bacula-users] How to make bacula handle sparse files correctly
2014-11-25 13:38:27
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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