RapidFX
CREATE RAID LEVEL 6: mdadm --create /dev/md0 --chunk=64 --force --level=6 --raid-devices=10 /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk mdadm --create /dev/md1 --chunk=64 --force --level=6 --raid-devices=10 /dev/sdl /dev/sdm /dev/sdn /dev/sdo /dev/sdp /dev/sdq /dev/sdr /dev/sds /dev/sdt /dev/sdu mdadm --create /dev/md2 --chunk=64 --force --level=6 --spare-devices=2 --raid-devices=5 /dev/sdv /dev/sdw /dev/sdx /dev/sdy /dev/sdz /dev/sdaa /dev/sda b ---------------------------------------------- FORMAT: mkfs.ext3 -v /dev/md0 mkfs -t xfs /dev/md2 ---------------------------------------------- MOUNT: mount /dev/md0 /media/raid6_1 mount /dev/md1 /media/raid6_2 ---------------------------------------------- UNMOUNT RAID DEVICE: umount /dev/md0 ---------------------------------------------- STOP RAID DEVICE: mdadm -S /dev/md0 ---------------------------------------------- MONITOR RAID DEVICE: mdadm --monitor -f --mail=alert@example.com --delay=1800 /dev/md2 mdadm --monitor --mail=alert@example.com --delay=1800 /dev/md2 The -f switch tells mdadm to run as a deamon. The delay parameter means that polling will be done in intervals of 1800 seconds. Finally, critical event s and fatal errors should be e-mailed to alert@example.com ---------- mdadm --detail /dev/md0 This will show the state and other usefull information about the array. ---------- watch cat /proc/mdstat This will show the state of arrays ---------------------------------------------- REMOVE A DRIVE FROM ARRAY: mdadm --manage --set-faulty /dev/md1 /dev/sdc2 Must fail drive before remove mdadm /dev/md1 -r /dev/sdc2 This will remove sdc2 from array md1 mdadm /dev/md1 -a /dev/sdc2 This will add sdc2 to array md1 ---------------------------------------------- INSTALL XFS SUPPORT: yum install dmapi dmapi-2.2.8-1.el5.centos.x86_64.rpm yum install dmapi-devel dmapi-devel-2.2.8-1.el5.centos.x86_64.rpm yum install kmod-xfs kmod-xfs-0.4-1.2.6.18_8.1.6.el5.centos.plus.x86_64.rpm yum install xfsprogs xfsprogs-2.8.20-1.el5.centos.x86_64.rpm yum install xfsprogs-devel xfsprogs-devel-2.8.20-1.el5.centos.x86_64.rpm [greg@stewie Desktop]$
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