Backup retoration

From: Mario Andres Yepes Cifuentes (marioy_at_upb.edu.co)
Date: 06/17/04

  • Next message: rmck: "Disk Array question" 
    Date: Thu, 17 Jun 2004 12:57:38 -0500
To: sunmanagers@sunmanagers.org

    Greetings

    I've been backing up an Oracle database with tar and dd trough a shell
    script in order to save time. First I bak up the datafiles with tar in
    the filesystem with
    tar cbf 126 PROD.tar /u04/oradata/PROD

    and then I store it in tape using
    dd if=PROD.tar of=/dev/rmt/0cn bs=63k

    and it works really fast.
    |
    The problem is that when I need to restore the back up it just take tooo
    long. As an example, it took almost 4 hours to unpack an archive from
    tape to the filesystem ( I used tar xbf 126 /dev/rmt/0cn).

    Is there a better way to do this? is the block size Im using to large?

    Regards
    Mario Andris Yepes Cifuentes
    Ingeniero de Soporte
    Universidad Pontificia Bolivariana
    _______________________________________________
    sunmanagers mailing list
    sunmanagers@sunmanagers.org
    http://www.sunmanagers.org/mailman/listinfo/sunmanagers

  • Next message: rmck: "Disk Array question"

    Relevant Pages

    • Re: XFS: 2.6.26-rc6 link count mismatch for inode
      ... output in dmesg when mounting the filesystem)? ... scsi0: ahci ... Ending clean XFS mount for filesystem: ... The tar xf mozilla-source.tarball was not responding ...
      (Linux-Kernel)
    • Re: Quickest way to bulk copy many files from one disk cluster to another
      ... Copy the whole filesystem with tar while in production, ... Star also implements a -copy flag that allows to avoid pipe related performance ... When one filesystem is NFS mounted, try to make the _source_ filesystem ...
      (comp.unix.solaris)
    • ISO vs .tar
      ... I am experimenting with a new backup strategy based on a DVD-RAM device, ... I opt not to make a zipped archive, because unzipping it off the DVD-RAM ... straight .tar. ... Which type of "filesystem", the .iso ...
      (comp.os.linux.misc)
    • Re: using star to move 3 millions files .. going slowly .. painfully
      ... On a fragmented filesystem, ... not to use logging but to set the "fastfs" flag. ... Sun's tar is much slower than star. ...
      (comp.unix.solaris)
    • Re: dumping a samba directory
      ... prog like tar do you have any recommendations on which type of archiver ... you can give dump the ... but it actually bypasses the normal filesystem ... Samsung printers and HOSTING packages ...
      (freebsd-questions)