Raleigh Guevarra <[email protected]> wrote: > We're trying to make a RAID 0 with four 150Gb each of volumes but we > are getting this error [...] on Amazon EC2
> # mdadm --create /dev/md0 --level 0 --metadata=1.1 --raid-devices 4 /dev/sdl > /dev/sdm /dev/sdn /dev/sdo > mdadm: /dev/sdl appears to be part of a raid array: > level=raid0 devices=4 ctime=Thu Apr 30 20:48:41 2009 > [...] > # mdadm --create /dev/md0 --level=0 --raid-devices=4 /dev/sdl1 /dev/sdm1 > /dev/sdn1 /dev/sdo1 > mdadm: Cannot open /dev/sdl1: Device or resource busy > [...] You appear to be trying to use a device that's already part of a RAID array to create a RAID array. You can't do that. Take a look at output of /proc/mdstat to see what your system thinks are RAID devices. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
