dumb raid array question

Kvetch · 03-25-2007, 03:48 PM

I have a dumb question but was hoping someone might know. I just created a raid1 mirror using my two 500gb sata drives. I created one array

Code:

# mknod /dev/md1 b 9 1
# mdadm --create --verbose /dev/md1 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1
# cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sdc1[1] sdb1[0]
      488383936 blocks [2/2] [UU]

unused devices: <none>

and the put ext3 on them and added the following to my fstab

Code:

/dev/md1                /u02            ext3            noatime                 0 1

When I do a df -h it shows -

Code:

/dev/md/1             459G  199M  435G   1% /u02

Why does it display the array as "/dev/md/1" and not /dev/md1?
And why is there a 199MB loss? I understand the lost+found takes up a little and I lose some when formated but does the lost+found take a certain amount up depending on the size of the partition?

Thanks,
Nick

Kvetch · 03-25-2007, 04:19 PM

I figured it out. It is just the device symlinks and the 5 percent ext3 asks for.