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Old 03-25-2007, 03:48 PM   #1
Registered: Mar 2004
Posts: 35

Rep: Reputation: 15
dumb raid array question

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
# 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
/dev/md1                /u02            ext3            noatime                 0 1
When I do a df -h it shows -
/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?

Old 03-25-2007, 04:19 PM   #2
Registered: Mar 2004
Posts: 35

Original Poster
Rep: Reputation: 15
I figured it out. It is just the device symlinks and the 5 percent ext3 asks for.


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