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--- computing:storage:raid_metadata_removal [2015/06/23 16:14]
gcooper created
+++ computing:storage:raid_metadata_removal [2019/10/25 10:19] (current)
gcooper
@@ Line 1: / Line 1: @@
 ====== RAID Metadata Removal ======
-If you are reusing disk drives that were once members of a RAID array, you should remove the RAID metadata from the disk drives first.
+http://serverfault.com/questions/488346/removing-raid-metadata-from-drives
-<note warning>Not removing RAID metadata from drives can cause serious and varied problems.</note>
+http://www.server-world.info/en/note?os=CentOS_6&p=raid_metadata
+If you are **reusing disk drives that were once members of a RAID array**, you should **remove the RAID metadata** from the disk drives first.
+<note warning>Leaving RAID metadata on drives can cause serious and varied problems when you go to reuse the drives for another purpose.</note>
 ===== Intel (Integrated) RAID =====
@@ Line 22: / Line 26: @@
 <file>
 mdadm --zero-superblock /dev/sdx
+</file>
+or:
+<file>
+dmraid -r -E /dev/sdx
+</file>
+or:
+<file>
+dd if=/dev/zero of=$YOUR_DEV bs=512 seek=$(( $(blockdev --getsz $YOUR_DEV) - 1024 )) count=1024
 </file>
 Then verify:
+:!: You may need to **reboot**!
 <file>
 dmraid -r
+</file>
+or
+<file>
+mdadm --detail --scan --verbose
 </file>

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