README

   1 Objects:
   2 - zpool
   3         - vdev
   4         - disk
   5 - zvol
   6 - dataset
   7 - snapshot
   8
   9 <zpool>         ::= <vdev> <log> <cache> <spare> | <vdev> <log> <cache> <spare> <zpool>;
  10 <vdev>          ::= <diskset> | <mirror> | <raidz1> | <raidz2> | <raidz3>;
  11 <mirror>        ::= "disk" "disk" | "disk" <mirror>;
  12 <raidz1>        ::= "disk" "disk" "disk" | "disk" <raidz1>;
  13 <raidz2>        ::= "disk" "disk" "disk" "disk" | "disk" <raidz2>;
  14 <raidz3>        ::= "disk" "disk" "disk" "disk" "disk" | "disk" <raidz3>;
  15 <log>           ::= "internal" | <diskset> | <mirror>;
  16 <cache>         ::=     "internal" | <diskset>;
  17 <spare>         ::= "" | <diskset>;
  18 <diskset>       ::= "disk" | "disk" <diskset>;
  19