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Thread: SUSE 12.1 - System Backup Size

  1. #1
    Join Date
    Jul 2012
    Location
    San Digo, CA
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    Question SUSE 12.1 - System Backup Size

    What is the typical total-file-size of a System Backup (tar + other files) using options below

    Using:
    1. Used packages
    2. All packages

  2. #2
    dd@home.dk NNTP User

    Default Re: SUSE 12.1 - System Backup Size

    On 07/19/2012 01:56 PM, tecknode wrote:
    >
    > What is the typical _total-file-size_ of a *System Backup* (-tar + other
    > files-) using options below
    >
    > USING:
    > - Used packages
    > - All packages


    to give an answer we would have to have more info, like:

    - what is the total uncompressed size of your "Used packages"?

    - what is the total uncompressed size of your "All packages"?

    - what backup method/application do you intend to use?

    - will it employ compression?
    -- which type of compression?
    -- will you set it for max compression (longest time needed)?
    -- or minimum compression (shortest time needed)
    -- or somewhere in between

    - what kind of files are we talking about?
    --plain text files compress a LOT
    --movies, music, images are already compressed and may be slightly
    larger once re-compressed during backing up
    --executables and libs i don't know if they get smaller, or by how much..
    --i think i read that MS .doc (etc) files are also already compressed

    so, you can maybe get a feel for the problem we would have to answer..

    --
    dd

  3. #3
    Join Date
    Jul 2012
    Location
    San Digo, CA
    Posts
    36

    Default Re: SUSE 12.1 - System Backup Size

    Quote Originally Posted by dd@home.dk View Post
    On 07/19/2012 01:56 PM, tecknode wrote:
    >
    > What is the typical _total-file-size_ of a *System Backup* (-tar + other
    > files-) using options below
    >
    > USING:
    > - Used packages
    > - All packages


    to give an answer we would have to have more info, like:

    - what is the total uncompressed size of your "Used packages"?

    - what is the total uncompressed size of your "All packages"?

    - what backup method/application do you intend to use?

    - will it employ compression?
    -- which type of compression?
    -- will you set it for max compression (longest time needed)?
    -- or minimum compression (shortest time needed)
    -- or somewhere in between

    - what kind of files are we talking about?
    --plain text files compress a LOT
    --movies, music, images are already compressed and may be slightly
    larger once re-compressed during backing up
    --executables and libs i don't know if they get smaller, or by how much..
    --i think i read that MS .doc (etc) files are also already compressed

    so, you can maybe get a feel for the problem we would have to answer..

    --
    dd
    If I knew the answers I would not be asking the question.

    I am talking about using the System Backup that is in YaST Administration, and I did state "tar" which is the local file-extension the utility creates.

    I have no idea as to package sizes.

    As to compression, I use the utility’s default tar with tar-gzip subarchives, whatever that means.

    I am looking for input from users of openSUSE System Backup on their system, and what the size of the file created

  4. #4
    Join Date
    Jun 2008
    Location
    Podunk
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    26,640
    Blog Entries
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    Default Re: SUSE 12.1 - System Backup Size

    Quote Originally Posted by tecknode
    dd@home.dk;2475218 Wrote:
    > On 07/19/2012 01:56 PM, tecknode wrote:
    > >
    > > What is the typical _total-file-size_ of a *System Backup* (-tar +

    > other
    > > files-) using options below
    > >
    > > USING:
    > > - Used packages
    > > - All packages

    >
    > to give an answer we would have to have more info, like:
    >
    > - what is the total uncompressed size of your "Used packages"?
    >
    > - what is the total uncompressed size of your "All packages"?
    >
    > - what backup method/application do you intend to use?
    >
    > - will it employ compression?
    > -- which type of compression?
    > -- will you set it for max compression (longest time needed)?
    > -- or minimum compression (shortest time needed)
    > -- or somewhere in between
    >
    > - what kind of files are we talking about?
    > --plain text files compress a LOT
    > --movies, music, images are already compressed and may be slightly
    > larger once re-compressed during backing up
    > --executables and libs i don't know if they get smaller, or by how
    > much..
    > --i think i read that MS .doc (etc) files are also already compressed
    >
    > so, you can maybe get a feel for the problem we would have to answer..
    >
    > --
    > dd


    If I knew the answers I would not be asking the question.

    I am talking about using the *System Backup* that is in *YaST
    Administration*, and I did state "tar" which is the local file-extension
    the utility creates.

    I have no idea as to package sizes.

    As to compression, _I_use_the_utility’s_default_ *tar with tar-gzip
    subarchives*, whatever that means.

    I am looking for input from users of *openSUSE System Backup* on their
    system, and what the size of the file created

    Hi
    To be honest, by the time you tar up and transfer a file system on a
    large drive it's quicker to just re-install on a complete failure.

    To get a list of all the installed files, backup the
    file /var/log/zypp/history. If you make changes to configuration files
    backup those.

    I use http://software.opensuse.org/package...h_term=ibackup
    and tweak the script for openSUSE/SLE for the system files.

    I've also packaged up fwbackups
    https://build.opensuse.org/package/s...kage=fwbackups

    I have all my data on a /data partition which I backup (I use rsync), I
    also have a configuration script which creates softlinks to
    my /home/user directory.

    If you want a true backup then use dd to an equal size drive.

    I don't use big drives, I use RAID1 on my 500GB data drives then a
    spare 500GB for my rsync backup on the desktop.

    On my NAS I have 250GB drives, on this one I have a spare 250GB drive
    and just shutdown the NAS, swap the drive and let it re-sync.

    Notebook I do tar up my email but the rest of my data is via rsync.

    Just find somewhere to keep you backups safe and off-site

    --
    Cheers Malcolm °¿° (Linux Counter #276890)
    SUSE Linux Enterprise Desktop 11 (x86_64) Kernel 3.0.34-0.7-default
    up 10 days 15:03, 2 users, load average: 0.48, 0.34, 0.33
    CPU Intel i5 CPU M520@2.40GHz | Intel Arrandale GPU


  5. #5
    Join Date
    Feb 2009
    Location
    Spain
    Posts
    25,547

    Default Re: SUSE 12.1 - System Backup Size

    On 2012-07-20 18:16, tecknode wrote:
    > I am looking for input from users of *openSUSE System Backup* on their
    > system, and what the size of the file created


    I have not used it in years, since I first tried it. The default settings missed many important
    files, because it did only copy files that were installed from an rpm and then modified - it
    did not copy extra files related to that same rpm. And it was a fairly small backup.

    If you told it to backup all, it did indeed backup all, for which it first created a copy of
    all in /tmp, meaning you needed to have that huge free space available in /tmp, and of course,
    it crashed.

    I do not know what the current version does, I'm not familiar with what the "All packages"
    option does.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)



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