Chapter 6. Managing Software RAIDs with EVMS / 6.7. Deleting a Software RAID and Its Data
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Deleting a Software RAID and Its Data

If you want to remove the prior multipath settings, deactivate the RAID, delete the data on the RAID, and release all resources used by the RAID, do the following:

  1. If you want to keep the data stored on the software RAID device, make sure to back up the data to alternate media, using your normal backup procedures. Make sure the backup is good before proceeding.

  2. Open a terminal console prompt as the root user or equivalent. Use this console to enter the commands described in the remaining steps.

  3. Dismount the software RAID device by entering

    umount <raid-device>

  4. Stop the RAID device and its component devices by entering

    mdadm --stop <raid-device>

    mdadm --stop <member-devices>

    For more information about using mdadm, please see the mdadm(8) man page.

  5. Delete all data on the disk by literally overwriting the entire device with zeroes. Enter

    mdadm --misc --zero-superblock <member-devices>

  6. You must now reinitialize the disks for other uses, just as you would when adding a new disk to your system.

SUSE® Linux Enterprise Server Storage Administration Guide 10
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