https://kb.synology.com/en-us/DSM/help/DSM/StorageManager/storage_pool_change_raid_type?version=7

Drive Requirements

To change the RAID type of a storage pool, you must have a sufficient number of available drives ( Read more... )

Преамбула: поскольку плотно занимался по работе СХД от "midrange" до "high end" Sun/Oracle/HP/IBM/EMC - со скуки не против поиграться дома в мини хранилище ( Read more... )