I know that ZFS is available on variety of operating systems Solaris, Illumos, Linux, BSD ... etc

Suppose I have a bunch of disks that are part of ZFS raid file system that was created on Linux could those drives all of them be taken out of a the Linux machine and put into a machine running BSD or Illumos and have it just work. Are there any OS specific things that are written to ZFS file system that would make moving a disk between different implementations of ZFS a problem?

What about if the ZFS formatted disks were moved across cpu architectures says from a machine running SPARC to x86. Would the ZFS metadata be affected by endianess of the cpu architecture.