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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