ZFS Adding new mirror drive

[PaulAtreides]

I want to add an additional drive to my zfs mirror.
This is my partion table of disk da0p1

=>        40  7814037088  da0  GPT  (3.6T)
          40        1600    1  efi  (800K)
        1640        1024    2  freebsd-boot  (512K)
        2664        1432       - free -  (716K)
        4096     4194304    3  freebsd-swap  (2.0G)
     4198400  7809837056    4  freebsd-zfs  (3.6T)
  7814035456        1672       - free -  (836K)

Can I just copy the partion table to the new drive and the copy the EFI partion and Boot partion with the dd utility?

EFI Partion
dd if=/dev/da0p1 of=/dev/da3p1

Boot Partion
dd if=/dev/da0p2 of=/dev/da3p2

and then afterwards add the new drive to the zfs pool?

 

[SirDice]

Yes, that sounds correct. If the disks are identical you can easily copy the partition table using gpart backup ... and gpart restore ....

Something like:

gpart backup da0 > parttable.txt
cat parttable.txt | gpart restore da3

 

[PaulAtreides]

Thank you