Migrating from RAID5 to RAID6

[Nachtfalke]

Hi there,

i got a AS-204te and configured it as RAID5. How can i migrate it to RAID6?

[PlusPlus]

Yes, you can
ASUSTOR college has instruction about raid migration.

http://download.asustor.com/college/en/ ... ansion.pdf

[Nachtfalke]

Thank you for the link. Unfortunately the document doesn't cover my problem. I got four disks installed in my NAS at RAID5. Now I want to migrate this to a RAID6 with four disks. I tried to use the menuitem 'Management' from the Storage Manager, but the option 'Migrate this volume to a RAID volume or higher RAID level' is grayed out and therefor not selectable.

[ho66es]

i don't think you can go from a 4 disk raid 5 to a 4 disk raid 6, that would require a 5th disk.

from my understanding raid 5 allows 1 hdd failure and raid 6 2hdd failures, therefore a 4 disk raid 6 volume would offer less space than a raid 5 if the hdds are the same size.

the only way to go to raid 6 would be to backup data and remove volume and recreate as raid 6

[Nachtfalke]

I thought so ... But nevertheless thank you for the confirmation.