https://community.hpe.com/t5/disk-enclosures/raid-migration-on-dl380/m-p/4299350#M29136 I have not tried this (I have done raid5 to raid10 and back) but based on the fact that you can ONLY add drives to an array group and you NOT take drives out, I would say that all drives would stay in the array group and none would be released. Mon, 03 Nov 2008 16:52:05 GMT TTr 2008-11-03T16:52:05Z https://community.hpe.com/t5/disk-enclosures/raid-migration-on-dl380/m-p/4299349#M29135 What happens if you use the ACU to migrate from a four (4) drive RAID5 array to a RAID0 array? Does it still use all four (4) drives, or is one of the drives released (since there's no parity) from the array? Mon, 03 Nov 2008 16:44:09 GMT https://community.hpe.com/t5/disk-enclosures/raid-migration-on-dl380/m-p/4299349#M29135 Zeke Brubaker 2008-11-03T16:44:09Z https://community.hpe.com/t5/disk-enclosures/raid-migration-on-dl380/m-p/4299350#M29136 I have not tried this (I have done raid5 to raid10 and back) but based on the fact that you can ONLY add drives to an array group and you NOT take drives out, I would say that all drives would stay in the array group and none would be released. Mon, 03 Nov 2008 16:52:05 GMT https://community.hpe.com/t5/disk-enclosures/raid-migration-on-dl380/m-p/4299350#M29136 TTr 2008-11-03T16:52:05Z