"Hard Drive upgrade capacity limit"に関する回答The 10 TB WD that I tried failed. In that generation Airport. Any attempt to erase the drive caused an error. 06-14-2019 10:12:00 Local0.Warning 192.168.10.6 Jun 14 10:11:58 apple-10tb storage: Volume dk0 on Disk sd0 (WDC WD100EMAZ-00WJTA0 XXXXXXXX 83.H0A83) failed to mount (256). The drive always “needs repair” and the Erase function fails. 06-14-2019 09:55:48 Local0.Warning 192.168.10.6 Jun 14 09:55:47 apple-10tb storage: Volume dk0 on Disk sd0 (WDC WD100EMAZ-00WJTA0 XXXXXXXX 83.H0A83) needs repair (256). On the time machine side it acts like it might work until it throws a The operation couldn’t be completed. (OSStatus error 2.) or The operation couldn’t be completed. (OSStatus error 64.) EDIT! The drive that works depends on the exact model of time capsule. The A1302 takes a 10TB drive but the A1355 does not - I don’t know anything about the A1409 - I mistakenly thought they were identical when I wrote this answer. The TIme Capsule drive is not designed to be upgraded and the firmware may or may not...