Adding mirror disk to non-redundant zpool - where replacement disk is different size to original.

Hi,

I want to replace several disks currently in use within zpools on a Solaris 11.2 system ( SRU 15.4 ).

My planned approach is to:-

    (1) zpool attach <zpool name> <orig disk> <new disk>

    (2) zpool status -lx <zpool name>   - until resilvering 100% completed

    (3) zpool detach <zpool name> <orig disk>

eg.

root@xxxx:~# zpool status sappool
  pool: xxxpool
state: ONLINE
config:

        NAME                                         STATE     READ WRITE CKSUM
        xxxpool                                                             ONLINE       0     0     0
                      c0t6xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxd0           ONLINE       0     0     0
                      c0t6xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxd0             ONLINE       0     0     0

The replacement LUNs I  have been presented with are characteristically larger than the

original - but I also received one LUN which is very slightly smaller than the original