[linux-lvm] Software raid on top of lvm logical volume
Eric Monjoin
eric at monjoin.net
Wed Oct 27 22:02:06 UTC 2004
Hi,
I would like to know if it's possible (works perfectly) to create a
software mirror (md0) on top of 2 LVM logical volumes :
Physical Devices : /dev/sdb1, /dev/sdc1, /dev/sdd1, /dev/sde1,
/dev/sdf1, /dev/sdg1
pvcreate /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1
vgcreate -s 32 vgdata1 /dev/sdb1 /dev/sdc1 /dev/sdd1
lvcreate -l xxx vgdata1 lvdata1
vgcreate -s 32 vgdata2 /dev/sde1 /dev/sdf1 /dev/sdg1
lvcreate -l xxx vgdata2 lvdata2
/etc/raidtab :
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
chunk-size 32
persistant-superblock 1
device /dev/vgdata1
raid-disk 0
device /dev/vgdata2
raid-disk 1
Tks
Eric Monjoin
IT Architect
IBM france
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