<snip>
> I don't believe that the above is a correct statement. Linux
> software RAID1 will allow mirroring across more than 2 devices:
>
This is correct. Below is info and conf file from our raid1 setup
Boot sector (md1) is 3 partition raid 1
swap and root are 2 partition raid 1 with hot spare
Personalities : [raid0] [raid1] [raid5]
read_ahead 1024 sectors
md1 : active raid1 sdc1[2] sdb1[1] sda1[0]
15936 blocks [3/3] [UUU]
md2 : active raid1 sdc2[2] sdb2[1] sda2[0]
489856 blocks [2/2] [UU]
md0 : active raid1 sdc3[2] sdb3[1] sda3[0]
16924352 blocks [2/2] [UU]
# raid-1 configuration
raiddev /dev/md1
raid-level 1
nr-raid-disks 3
chunk-size 4
# Spare disks for hot reconstruction
nr-spare-disks 0
persistent-superblock 1
device /dev/sda1
raid-disk 0
device /dev/sdb1
raid-disk 1
device /dev/sdc1
raid-disk 2
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
chunk-size 32
nr-spare-disks 1
persistent-superblock 1
device /dev/sda3
raid-disk 0
device /dev/sdb3
raid-disk 1
device /dev/sdc3
spare-disk 0
raiddev /dev/md2
raid-level 1
nr-raid-disks 2
chunk-size 4
# Spare disks for hot reconstruction
nr-spare-disks 1
persistent-superblock 1
device /dev/sda2
raid-disk 0
device /dev/sdb2
raid-disk 1
device /dev/sdc2
spare-disk 0
Michael@Insulin-Pumpers.org
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