Red Hat Summit18.11. Conversion d'un niveau RAID
Vous pouvez convertir le RAID en un niveau RAID différent si nécessaire. L'exemple suivant convertit le périphérique RAID /dev/md0 de niveau 0 en 5 et ajoute un disque supplémentaire /dev/sdd à la matrice.
Conditions préalables
- Suffisamment de disques pour la conversion.
-
Le paquet
mdadmest installé. - Assurez-vous que la conversion envisagée est prise en charge. Voir Conversions RAID prises en charge.
Procédure
Convertir le RAID /dev/md0 au niveau RAID 5:
mdadm --grow --level=5 -n 3 /dev/md0 --force
# mdadm --grow --level=5 -n 3 /dev/md0 --forceCopy to Clipboard Copied! Toggle word wrap Toggle overflow Ajouter un nouveau disque à la matrice :
mdadm --manage /dev/md0 --add /dev/sdd
# mdadm --manage /dev/md0 --add /dev/sddCopy to Clipboard Copied! Toggle word wrap Toggle overflow
Vérification
Vérifiez que le niveau RAID est converti :
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
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