HP Xw6400 Software RAID in Linux Workstations - Page 13

RAID-5, Command

Page 13 highlights

RAID-5 /etc/raidtab file: raiddev /dev/md0 raid-level nr-raid-disks nr-spare-disks persistent-superblock chunk-size device raid-disk device raid-disk device raid-disk device raid-disk 5 4 0 1 4 /dev/hda1 0 /dev/hdb1 1 /dev/hdc1 2 /dev/hdd1 3 Command: mdadm -Cv /dev/md0 --level=5 --raid-devices=4 /dev/hda1 /dev/hdb1 /dev/hdc1 /dev/hdd1 RAID-10 /etc/raidtab file: raiddev /dev/md0 raid-level nr-raid-disks nr-spare-disks chunk-size device raid-disk device raid-disk 0 2 0 4 /dev/sda1 0 /dev/sdb1 1 raiddev /dev/md1 raid-level nr-raid-disks nr-spare-disks chunk-size device raid-disk device raid-disk 0 2 0 4 /dev/sdc1 0 /dev/sdd1 1 raiddev /dev/md2 raid-level nr-raid-disks nr-spare-disks chunk-size device raid-disk device raid-disk 1 2 0 4 /dev/md0 0 /dev/md1 1 Commands: mdadm ñCv /dev/md0 --level=0 --raid-devices=2 /dev/sda1 /dev/sdb1 mdadm ñCv /dev/md1 --level=0 --raid-devices=2 /dev/sdc1 /dev/sdd1 mdadm ñCv /dev/md2 --level=1 --raid-devices=2 /dev/md0 /dev/md1 13

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RAID-5
/etc/raidtab
file:
raiddev /dev/md0
raid-level
5
nr-raid-disks
4
nr-spare-disks
0
persistent-superblock 1
chunk-size
4
device
/dev/hda1
raid-disk
0
device
/dev/hdb1
raid-disk
1
device
/dev/hdc1
raid-disk
2
device
/dev/hdd1
raid-disk
3
Command:
mdadm -Cv /dev/md0 --level=5 --raid-devices=4 /dev/hda1 /dev/hdb1
/dev/hdc1 /dev/hdd1
RAID-10
/etc/raidtab
file:
raiddev /dev/md0
raid-level
0
nr-raid-disks
2
nr-spare-disks
0
chunk-size
4
device
/dev/sda1
raid-disk
0
device
/dev/sdb1
raid-disk
1
raiddev /dev/md1
raid-level
0
nr-raid-disks
2
nr-spare-disks
0
chunk-size
4
device
/dev/sdc1
raid-disk
0
device
/dev/sdd1
raid-disk
1
raiddev /dev/md2
raid-level
1
nr-raid-disks
2
nr-spare-disks
0
chunk-size
4
device
/dev/md0
raid-disk
0
device
/dev/md1
raid-disk
1
Commands:
mdadm ñCv /dev/md0 --level=0 --raid-devices=2 /dev/sda1 /dev/sdb1
mdadm ñCv /dev/md1 --level=0 --raid-devices=2 /dev/sdc1 /dev/sdd1
mdadm ñCv /dev/md2 --level=1 --raid-devices=2 /dev/md0 /dev/md1
13