zfs create rpool/db2
zfs create rpool/db3
zfs create rpool/db4
zfs create rpool/db5
zfs create rpool/db6
zfs create rpool/db7
zfs set mountpoint=/db1 rpool/db1
zfs set mountpoint=/db2 rpool/db2
zfs set mountpoint=/db3 rpool/db3
zfs set mountpoint=/db4 rpool/db4
zfs set mountpoint=/db5 rpool/db5
zfs set mountpoint=/db6 rpool/db6
zfs set mountpoint=/db7 rpool/db7
snapshot
zfs snapshot rpool/db1@mig1
zfs list
zfs rollback rpool/db1@mig1
zfs snapshot dbisci@mig1
zfs rollback rpool/db1@mig1
zfs list -t snapshot
ln -s /dbisci/resp11/db1.BAK /db1