CP/M and mass storage.

[m_dr_m]

Is there any modern mass storage (X-Mass, Albireo, M4, Symbiface III, ...) supported via CP/M?

[HAL6128]

No, not for the CPC. CP/M has to be rewritten. @JonB has done a driver concept (FID files) for his uIDE mass storage (UIDE Universal IDE adapter cards for Z-80 computers - CPCWiki). But this can't be used for the CP/M version of the CPC range (not mature enough).
Dobbertin has done a driver for CP/M back in the past (SASI harddrive with some kind of CHS addressing). @TFM / @GUNHED has the source code. Maybe someone is experienced enough to change the code?

[GUNHED]

Is there any modern mass storage (X-Mass, Albireo, M4, Symbiface III, ...) supported via CP/M?

Yes, the Dobbertin HD20 hard disc is supported by 63K CP/M 2.2 and CP/M Plus. The HD20 provides four partitions of 5 MB space. It should be easy to rewrite the sector read/write code for any other mass storage device. The source code of CP/M Plus does exist for persons who are willing to work seriously on such an project.

[d_kef]

Is there any modern mass storage (X-Mass, Albireo, M4, Symbiface III, ...) supported via CP/M?

There is now!
https://www.cpcwiki.eu/forum/programming/hdcpm-boot-and-run-cpm-plus-from-hard-disk/


d_kef