Log: diskinfo
/dev/ada0
512 # sectorsize
320072933376 # mediasize in bytes (298G)
625142448 # mediasize in sectors
4096 # stripesize
0 # stripeoffset
620181 # Cylinders according to firmware.
16 # Heads according to firmware.
63 # Sectors according to firmware.
ST320LT020-9YG142 # Disk descr.
... # Disk ident.
ahcich0 # Attachment
id1,enc@n3061686369656d30/type@0/slot@1/elmdesc@Slot_00 # Physical path
No # TRIM/UNMAP support
5400 # Rotation rate in RPM
Not_Zoned # Zone Mode