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Discussions on RAM, DRAM, shared memory, NAS, SAN, RAID, backups, SCSI, IDE, UFS, UFS2, JFS, JFS2, EXT2, EXT3
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designeru
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Post subject: Mdadm - How can i destroy or delete an array | Posted: Tue May 18, 2010 9:52 am |
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Joined: Thu Dec 31, 2009 4:44 pm
Posts: 10
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Mdadm - How can i destroy or delete an array
So, you created an array and you messed up something? Now you would like to delete it? Please note: all data will be lost with this operation! 1. Stop the array Code: # mdadm -S /dev/md0 2. Remove the disks from the array (in my example md0 is a raid5 array with 3 disks) Code: # mdadm /dev/md0 -r /dev/sda
# mdadm /dev/md0 -r /dev/sdb
# mdadm /dev/md0 -r /dev/sdc 3. Destroy the array configuration from each disk (this will destroy all the data from your disks)Code: # dd if=/dev/zero of=/dev/sda bs=1M count=1024
# dd if=/dev/zero of=/dev/sdb bs=1M count=1024
# dd if=/dev/zero of=/dev/sdc bs=1M count=1024 4. Remove the mdadm.conf file (if any) Code: # rm /etc/mdadm/mdadm.conf Now you can try to create a new array as you wish or as you were suposed to...
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