Transferring FreeBSD to a new drive - ZFS question

I

ilemur

I have a FBSD FreeBSD 9 system with a root which I would like to transfer to another - larger disk - putting up a fresh FBSD FreeBSD install and transfering some of the /etc and /usr/local/etc configuration files.

Within this system I have two zfs pools. And one is especially important holding around 5TB of data. It is a raid-z which was created with gpart labels on HDDs. Something like the following
Code: 
backupstorage# gpart create -s GPT ad0
backupstorage# gpart add -b 34 -s 1953525101 -i 1 -t freebsd-zfs -l disk0 ad0
backupstorage# gpart show
=>        34  1953525101  da0  GPT  (932G)
          34  1953525101    1  freebsd-zfs  (932G)

Second one is a ZFS stripe.

As I don't have a spare HDD to backup all of data on the RAID-Z (only most important files are backed up) - what is the easiest way to attach this zpool after I reinstall a fresh new FBSD FreeBSD system?
 
ok. Done. Everything went as smooth as it could be. Except for the thing that before my disks used gpt labels and now they are addressed directly

Code: 
  pool: storage
 state: ONLINE
 scan: scrub repaired 38.3M in 4h45m with 0 errors on Sat Mar 24 08:15:01 2012
config:

        NAME        STATE     READ WRITE CKSUM
        storage     ONLINE       0     0     0
          raidz1-0  ONLINE       0     0     0
            ada5p1  ONLINE       0     0     0
            ada2p1  ONLINE       0     0     0
            ada1p1  ONLINE       0     0     0
Safe to bring them back to gpt labeling? The easiest way to do that?
 
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