XCP-ng上で、FreeBSD 11.2のVMを作って、Disk追加して、追加したDiskをzfs の vdev=diskで作成しようとした。
# zpool create -O atime=off -O normalization=formD zdata disk /dev/ada1 cannot open 'disk': no such GEOM provider must be a full path or shorthand device name
なぜ？どうして？ ちっともわからなかったのだが、ふと
# zpool create -O atime=off -O normalization=formD zdata /dev/ada1
で成功する。
なんでこんなところのI/Fがman pageと違うんだ？
zpool create [-fnd] [-o property=value] ...
[-O file-system-property=value] ... [-m mountpoint] [-R root]
[-t tempname] pool vdev ...
....
Virtual Devices (vdevs)
A "virtual device" (vdev) describes a single device or a collection of
devices organized according to certain performance and fault
characteristics. The following virtual devices are supported:
disk A block device, typically located under /dev. ZFS can use
individual slices or partitions, though the recommended mode of
operation is to use whole disks. A disk can be specified by a
full path to the device or the geom(4) provider name. When given
a whole disk, ZFS automatically labels the disk, if necessary.
どこにも vdev を省略可能なんて書いてねーぞ!