One more question: What's the preferred source for the zbc_* commands? I built from https://github.com/hgst/libzbc, but get this runtime failure: root@MHKfio2:~# zbc_report_zones /dev/nullb0 Device /dev/nullb0: Vendor ID: FAKE HGST HM libzbc Emulated zoned block device interface, Host-managed zone model 2097152 512-bytes sectors 262144 logical blocks of 4096 B 262144 physical blocks of 4096 B 1.074 GB capacity Read commands are restricted Maximum number of open sequential write required zones: 32 zbc_report_nr_zones at 0, ro 0x00 failed -6 Michael
