xS1m0n: I believe some of the STMF data is stored in SMF.

e.g., there is a comment that describes some of this, I think: github.com/illumos/illumos-gate/blo…lib/libstmf/common/store.c#L42-L143

If you "svccfg export svc:/system/stmf" do you see anything relevant in the XML?

Something I can't quite remember is if there is _other_ data, maybe stored in ZFS properties on the zvol itself, that might also be relevant

lun metadata is stored either with block device itself or in separate file (if so specified).

if you want to use zvol for lun, and store your disk image directly to zvol itself, then you want to use separate metadata file to set up lun with stmf.

tsoome: Is replicating the metadata in the zvol itself a problem?

I haven't got STMF running right now but if you replicate the changes to svc:/system/stmf properties, and you replicate the volumes which include that metadata, it seems like that would basically get you everything?