QUOTE(incognitroll @ Oct 8 2025, 12:30 PM)
Synology comes to its senses, removes all HDD limitations from 2025 DiskStation models
https://www.androidcentral.com/accessories/...kstation-modelsSynology Hard Drive Support MASSIVE U-TURN in DSM 7.3
SYNOLOGY Allowing THIRD PARTY DRIVES AGAIN - DSM 7.3 UPDATE
Good news! But I wonder how much damage has been done and how many consumer that still wary of Synology and buy other brand in case this thing happened again in future.
QUOTE
What Happens When a User Installs a Hard Drive That Is Not on the Compatibility List but Is Not on the Incompatibility List Either?
Under DSM 7.3, Synology has overhauled how its NAS systems handle drives that are not officially listed in the compatibility database but are also not explicitly marked as incompatible. This new policy, part of the HCL 5.0 framework, restores the flexibility that was largely lost with DSM 7.2. For users of 2025 DiskStation Plus models, including systems such as the DS1525+, DS925+, and DS725+, these drives are now treated as fully functional and supported for installation, storage pool creation, and volume management. When a non-listed HDD or SATA SSD is installed in these units, DSM 7.3 accepts it without generating warnings, restrictions, or “unverified” messages. The drive behaves identically to a fully approved model, and users can create new RAID arrays, expand existing volumes, and use all standard DSM features such as snapshots, encryption, and Hyper Backup. This marks a significant shift from DSM 7.2, which blocked pool creation entirely if the installed drive was not verified by Synology.
There's a nuance. New buyer of 2025 Plus model need to update DSM to v7.3 then only they can use HDD that is not in the compatibility list, but they cannot install HDD that is not in the compatibility list if the DSM is not v7.3
New buyer need to ask seller to update the DSM to v7.3 before ships out the NAS then they can use HDD that is not in the compatibility list.