The Synology HDD megathread

Share HDD compatibility with NAS community!
DS920+DSM 7.1.1-42962 Update 3Ultrastar® DC HC330 10TBWUS721010ALE6L4YESNO
DS1520+7.1.1-42962 Update 4Seagate IronWolf Pro 20TBST20000NTZ01YESNO
DS1522+ DSM 7.1.1-42962 Update 3 WD Ultrastar HC560 20TB WUH722020ALE6L4YESYES
DS723+DSM 7.1.1-42962 Update 4Seagate Exos X18 18TBST18000NM000JYESNO
DS920+DSM 7.1.1-42962 Update 3 WD Red Pro 20TBWD201KFGXYESNO
DS2422+DSM 7.1.1-42962 Update 3 WD Red Pro 20TBWD201KFGXYESYES
DS2422+DSM 7.1.1-42962 Update 3 WD Red Pro 20TBWD201KFGXYESYES
DS923+DSM 7.1.1-42962 Update 3 Seagate IronWolf Pro 20TBST20000NT001YESNO
DS418DSM 716TB Seagate Ironwolf ProST16000NE000YESNO
DS418Play7.1.1-42962Seagate IronWolf Pro 20TBST2000NT01-3LT101YESYES
DS224+DSM 7.2.1-69057 Update 4WD Red 4 TBWD40EFRXYesYes
RS1221+DSM 7.2.1-69057 Update 4Seagate IronWolf Pro 16TBST16000NT0001-3LV101YESNO
DS1823xs+7.2WD RED Pro 22tbWD221KFGXYESNO



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It is extremely frustrating that Synology NAS systems do not support professionally made NAS hard drives. While it is understandable that they may not have the resources to test new, larger capacity drives like 20TB, it is baffling that even 10TB drives are not supported. Moreover, it is annoying to receive a warning for using a high-quality NAS drive from a reputable brand that is specifically designed for harsh environments. Synology is a NAS maker, not a hard drive manufacturer, so it is hard to comprehend why they think their drives are better than those from a company with 50 years of experience. It is imperative for Synology to recognize the importance of supporting professional-grade hard drives for their NAS systems, as it can have a significant impact on the system’s reliability and performance.




How to fix drive locking (not recognised) on Synology


HDD compatibility warning – way to disable it? Synology Storage Manager will display an Incompatible or Unverified message


WARNING: Follow these steps at your own risk.


Step 1

Enable SSH on the Synology and log in with your admin account, then type:

sudo -i

and type in your password.


Step 2

Navigate to the folder where the drive list is stored.

cd /var/lib/disk-compatibility


Step 3

edit *_host.db and * and add your drive. In our case we had to add this line to the DB rs2821rp+_host.db and




Some drives in that file don’t have a firmware defined, so for you, you could try to copy that entry and add your model number of the drive. Another option is to look in the DB for the expansion unit for your drive, we found our config there. Just make sure “rec_intvl” is set to 1 if you copy the entry. Ours was standard 3 and that didn’t work.


Save and quit both files with :wq and then reboot the NAS, if everything is done correctly the NAS should say the disk status is normal.



Here is also a script –



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4 thoughts on “The Synology HDD megathread

  1. I recently bought an RS1221+ that was bundled with 8x 16TB (ST16000NT0001-3LV101) drives.

    I understand from that these are the newer version of the NE drives.

    They are not on the Synology compatibility list, but DSM does not show them as “unverified”.

    I checked with Synology support who confirmed they were not on the list, so I’m confused by the discrepancy.

    How can I find the canonical answer? If they are indeed not supported I will go back to the vendor who sold the drives in a bundle.

    Thank you!

  2. I see the 20TB Seagate Pro is being reported as not showing a warning?? How did you make that happen? Synology’s list of “Tested for compatibility” list is incredibly deficient and does not include any 20TB drives so they will ALL report a warning.

    I feel Synology has greatly diminished their brand with the warning for compatibility that they display on most drives. It makes it very hard to find a drive for a NAS without ordering, testing, and returning until you get “Tested” drive models. This is especially true with Seagate.

    In almost all cases, SATA drives (especially NAS lines) are 100% compatible. A storage brand that suggests otherwise should be avoided.

    1. There is a list on the NAS that is used to compare the HDD serial against. If serial is not found, you get a warning. But here is how to change it

      Funny enough DS920+ show no warning.

      Also script available