# # /etc/raidtab # # To Stop and Start the Raid Array # -------------------------------- # /etc/init.d/raid2 stop # /etc/init.d/raid2 start # # -- or -- # # raidstop /dev/md0 # raidstart /dev/md0 # # # To Create the Raid Devices # -------------------------- # # raidadd -a # md0 : inactive hdc1 hdd1 16402302 blocks # # raidrun /dev/md0 # md0 : active raid0 hdc1 hdd1 16401920 blocks 256k chunks # -- turn it on # # raidstart /dev/md0 # # # To Initialize Raid # ------------------ # mkraid /dev/md0 # # mkraid --really-force /dev/md0 # # mkraid -c /etc/raidtab /dev/md0 # mkraid is only relevant for RAID 1, 4, and 5 devices # mkraid: aborted # # - or - # mdctl --assemble /dev/md0 /dev/hda1 /dev/hdb1 /dev/hdc1 # # # To Check if its recognized # -------------------------- # cat /proc/mdstat # Personalities : [1 linear] [2 raid0] [3 raid1] [4 raid5] # read_ahead 128 sectors # md0 : active raid0 hdc1 hdd1 16401920 blocks 256k chunks # md1 : inactive # # # To Format a NEW raid device # --------------------------- # mkfs.ext2 /dev/md0 # mke2fs -b 4096 -R stride=16 /dev/md0 # mke2fs -m 1 /dev/md0 # # - for Ext3 Journeling FS ( download new e2fsprogs-1.25 ) # - define ext3 in /etc/fstab # mke2fs -j /dev/md0 # # # To Check the formating before mounting # -------------------------------------- # e2fsck /dev/md0 # # # To Mount and use the Raid devices # --------------------------------- # mkdir /Raid5 ; mount /dev/md0 /Raid5 # # # 12-Feb-99 amo Date-of-Birth # 11-Dec-01 amo Modified for Onsight.com # # ------------------------------------------------------- # raid0 = striping # raid1 = mirroring # raiddev /dev/md0 # # General parameters # raid-level 0 # it's not obvious but raid-level *must* be right after raiddev # # nr-raid-disks 5 # # nr-spare-disks 0 # # persistent-superblock 0 persistent-superblock 1 # # chunk-size 8 chunk-size 256 # # # RAID disks # ---------- device /dev/hdc1 raid-disk 0 # device /dev/hde1 raid-disk 1 # device /dev/hdf1 raid-disk 2 # device /dev/hdg1 raid-disk 3 # device /dev/hdh1 raid-disk 4 # # # end of file