Thanks for comments So possible choises are :
1) 2 2-way mirros 2) 4 disks raidz2 BTW , can raidz have spare ? so is there one posible choise more : 3 disks raidz with 1 spare ? Here i prefer data availibility not performance. And if need sometime to expand / change setup it is then that time problem.... -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss