HOWTO: Multi Disk System Tuning: Appendix M: Disk System Documenter

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## 33. Appendix M: Disk System Documenter

This shell script was very kindly provided by Steffen Hulegaard. Run it as root (superuser) and it will generate a summary of your disk setup. Run it after you have implemented your design and compare it with what you designed to check for mistakes. Should your system develop defects this document will also be a useful starting point for recovery.

    #!/bin/bash
    #$Header$
    #
    # makediskdoc               Collects storage/disk info via df, mount,
    #                           /etc/fstab and fdisk.  Creates a single
    #                           reference file -- /root/sysop/doc/README.diskdoc
    #                           Especially good for documenting storage
    #                           config/partioning
    #
    # 11/11/1999  SC Hulegaard  Created just before RedHat 5.2 to
    #                           RedHat 6.1 upgrade
    # 12/31/1999  SC Hulegaard  Added sfdisk -glx usage just prior to
    #                           collapse of my Quantum Grand Prix (4.3 Gb)
    #
    # SEE ALSO  Other /root/bin/make*doc commands to produce other /root/sysop/doc/README.*
    #           files.  For example, /root/bin/makenetdoc.
    #
    FILE=/root/sysop/doc/README.diskdoc
    echo Creating $FILE ...
    echo ' ' > $FILE
    echo $FILE >> $FILE
    echo Produced By $0 >> $FILE
    echo `date` >> $FILE
    echo ' ' >> $FILE
    echo $Header$ >> $FILE
    echo ' ' >> $FILE
    echo DESCRIPTION:  df -a >> $FILE
    df -a >> $FILE 2>&1
    echo ' ' >> $FILE
    echo DESCRIPTION:  df -ia >> $FILE
    df -ia >> $FILE 2>&1
    echo ' ' >> $FILE
    echo DESCRIPTION:  mount >> $FILE
    mount >> $FILE 2>&1
    echo ' ' >> $FILE
    echo DESCRIPTION:  /etc/fstab >> $FILE
    cat /etc/fstab >> $FILE
    echo ' ' >> $FILE
    echo DESCRIPTION:  sfdisk -s disk device size summary >> $FILE
    sfdisk -s >> $FILE
    echo ' ' >> $FILE
    echo DESCRIPTION:  sfdisk -glx info for all disks listed in /etc/fstab >> $FILE
    for x in `cat /etc/fstab | egrep /dev/[sh] | cut -c 0-8 | uniq`; do
      echo ' ' >> $FILE
      echo $x ============================= >> $FILE
      sfdisk -glx $x >> $FILE
    done
    echo ' ' >> $FILE
    echo DESCRIPTION:  fdisk -l info for all disks listed in /etc/fstab >> $FILE
    for x in `cat /etc/fstab | egrep /dev/[sh] | cut -c 0-8 | uniq`; do
      echo ' ' >> $FILE
      echo $x ============================= >> $FILE
      fdisk -l $x >> $FILE
    done
    echo ' ' >> $FILE
    echo DESCRIPTION:  dmesg info on both sd and hd drives >> $FILE
    dmesg | egrep [hs]d[a-z] >> $FILE
    echo '' >> $FILE
    echo Done >> $FILE
    echo Done
    exit

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