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## 5. Appendix A. - example raidtab

RAID1 example described in the first sections of this document

     df
    Filesystem           1k-blocks      Used Available Use% Mounted on
    /dev/md0              19510780   1763188  16756484  10% /
    /dev/md1                 15860       984     14051   7% /boot

    # --------------------------

     fdisk -ul /dev/hda

    Disk /dev/hda: 16 heads, 63 sectors, 39770 cylinders
    Units = sectors of 1 * 512 bytes

       Device Boot    Start       End    Blocks   Id  System
    /dev/hda1            63     33263     16600+  fd  Linux raid autodetect
    /dev/hda2         33264    443519    205128   83  Linux native
    /dev/hda3        443520  40088159  19822320   fd  Linux raid autodetect

    # --------------------------

     fdisk -ul /dev/hdc

    Disk /dev/hdc: 16 heads, 63 sectors, 39770 cylinders
    Units = sectors of 1 * 512 bytes

       Device Boot    Start       End    Blocks   Id  System
    /dev/hdc1            63     33263     16600+  fd  Linux raid autodetect
    /dev/hdc2         33264    443519    205128   82  Linux swap
    /dev/hdc3        443520  40088159  19822320   fd  Linux raid autodetect

    # --------------------------

    # md0 is the root array, about 20 gigs
    raiddev                 /dev/md0
    raid-level              1
    nr-raid-disks           2
    chunk-size              32
    # Spare disks for hot reconstruction
    nr-spare-disks          0
    persistent-superblock   1
    device                  /dev/hda3
    raid-disk               0
    device                  /dev/hdc3
    raid-disk               1

    # md1 is the /boot array, about 16 megs
    raiddev                 /dev/md1
    raid-level              1
    nr-raid-disks           2
    chunk-size              32
    # Spare disks for hot reconstruction
    nr-spare-disks          0
    persistent-superblock   1
    device                  /dev/hda1
    raid-disk               0
    device                  /dev/hdc1
    raid-disk               1

    # --------------------------

    # GLOBAL SECTION
    # device containing /boot directory
    disk=/dev/md0
    # geometry
      bios=0x80
      sectors=63
      heads=16
      cylinders=39770
    # dummy
      partition=/dev/md1
    # start of device "disk" above
      start=63

    boot=/dev/hda
    map=/boot/map
    install=/boot/boot.b

    image=/boot/bzImage
    root=/dev/md0
    label=LinuxRaid
    read-only

    # -------------------------

    # GLOBAL SECTION
    # device containing /boot directory
    disk=/dev/md0
    # geometry
      bios=0x80
      sectors=63
      heads=16
      cylinders=39770
    # dummy
      partition=/dev/md1
    # start of device "disk" above
      start=63

    boot=/dev/hdc
    map=/boot/map
    install=/boot/boot.b

    image=/boot/bzImage
    root=/dev/md0
    label=LinuxRaid
    read-only

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