| Setup the NAS with unverified 3rd party HDDs | **No!** | | See <ahref="#setting-up-a-new-2025-or-later-plus-model-with-only-unverified-hdds">Setup with unverifed HDDs</a> |
| Migrate unverified 3rd party drives from other Synology | yes | Lots of warnings | Use [Synology HDD db](https://github.com/007revad/Synology_HDD_db) |
| Replace migrated 3rd party drives with 3rd party drives | **No!** | | Use [Synology HDD db](https://github.com/007revad/Synology_HDD_db) |
| Expand migrated 3rd party storage pool with 3rd party drives | **No!** | | Use [Synology HDD db](https://github.com/007revad/Synology_HDD_db) |
| Use 3rd party drive as hot spare | **No!** | | Use [Synology HDD db](https://github.com/007revad/Synology_HDD_db) |
| Create a cache with 3rd party SSDs | **No!** | | Use [Synology HDD db](https://github.com/007revad/Synology_HDD_db) |
| Delete and create storage pool on migrated 3rd party drives | **No!** | | See <ahref="#deleting-and-recreating-your-storage-pool-on-unverified-hdds">Recreating storage pool</a> |
You can't download Synology HDD db to a volume because you've just deleted your storage pool. So you'd first need to download Synology HDD db to a system folder and run it from there.