Hi I have planned to relayout current mirrored boot disk configuration which comes from days no zfs boot. History -> I just converted old ufs boot slices to zfs boot , those where mirrored using solaris volume manager to zfs boot... Current layout is : 2 disks as c0d0 and c1d0 NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 mirror ONLINE 0 0 0 c0d0s0 ONLINE 0 0 0 c1d0s0 ONLINE 0 0 0 NAME STATE READ WRITE CKSUM localpool ONLINE 0 0 0 mirror ONLINE 0 0 0 c0d0s5 ONLINE 0 0 0 c1d0s5 ONLINE 0 0 0 localpool is now emptied so no matter even delete it , but how resize rpool to be fully over disks c0d0 and c1d0 as mirror. I know replace mirror device one-by-one will do the job in zpool level but how about zfs boot?? is reinstall only way ??? Or can it handle this as "live change" So like to get new setup : NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 mirror ONLINE 0 0 0 c0d0 ONLINE 0 0 0 c1d0 ONLINE 0 0 0 Thanks This message posted from opensolaris.org