Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
softare-raid [2011/10/26 10:10] admin angelegt |
softare-raid [2014/06/26 09:55] (aktuell) admin |
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Zeile 1: | Zeile 1: | ||
====== Software-RAID ====== | ====== Software-RAID ====== | ||
+ | |||
+ | mdadm --examine --scan | ||
+ | mdadm --assemble --scan | ||
+ | mount /dev/md/... /c | ||
+ | |||
+ | ===== LVM ===== | ||
mdadm --create /dev/md0 --level=5 --raid-devices=3 /dev/sd[abc]3 | mdadm --create /dev/md0 --level=5 --raid-devices=3 /dev/sd[abc]3 | ||
watch -n .1 cat /proc/mdstat | watch -n .1 cat /proc/mdstat | ||
mdadm --misc --detail /dev/md[012] | less | mdadm --misc --detail /dev/md[012] | less | ||
+ | |||
pvcreate /dev/md0 | pvcreate /dev/md0 | ||
vgcreate VolGroupArray /dev/md0 | vgcreate VolGroupArray /dev/md0 | ||
Zeile 9: | Zeile 16: | ||
lvcreate -L 15G VolGroupArray -n lvvar | lvcreate -L 15G VolGroupArray -n lvvar | ||
lvcreate -l +100%FREE VolGroupArray -n lvhome | lvcreate -l +100%FREE VolGroupArray -n lvhome | ||
+ | |||
mdadm --examine --scan > /mnt/etc/mdadm.conf | mdadm --examine --scan > /mnt/etc/mdadm.conf | ||
mdadm --assemble /dev/md1 /dev/sdg1 | mdadm --assemble /dev/md1 /dev/sdg1 | ||
+ | |||
+ | ====== SW-RAID Daten retten ====== | ||
+ | |||
+ | mknod /dev/md0 b 9 0 | ||
+ | |||
+ | mdadm --assemble --force /dev/md0 /dev/sda1 | ||
+ | mount /dev/md0 /c | ||
+ | |||
+ | umount /c | ||
+ | mdadm --stop /dev/md0 | ||
+ | |||
+ | ====== alternativ: dm-raid (fake raid) ====== | ||
+ | |||
+ | dmraid -ay -v | ||
+ | |||