vm-bhyve stripesize
disk0.img の場合は zfs recordsize (default 128K)
sparse-zvol の場合は zfs volblocksize (default 8K)
になる？
disk0_opts で変更可？
disk0_type="virtio-blk" disk0_name="disk0.img" disk0_opts="sectorsize=512/4096"
guest
$ sudo diskinfo -v vtbd0 vtbd0 512 # sectorsize 21474836480 # mediasize in bytes (20G) 41943040 # mediasize in sectors 4096 # stripesize 0 # stripeoffset # Disk descr. BHYVE-C743-589B-A9C0 # Disk ident. No # TRIM/UNMAP support Unknown # Rotation rate in RPM
stripesize が 0 になることがある？
FreeBSD 9.0-STABLEv(virtio-blk) $ sudo diskinfo -v vtbd0 vtbd0 512 # sectorsize 42949672960 # mediasize in bytes (40G) 83886080 # mediasize in sectors 0 # stripesize 0 # stripeoffset BHYVE-4243-1756-14F0 # Disk ident.
