Question after successfully replacing a drive

[borghives]

I have replaced a drive in my zpool and the status indicate all is healthy.
However the layout now look like this:

Code:

  pool: vooolume
 state: ONLINE
  scan: resilvered 198G in 2h11m with 0 errors on Thu Jan  8 19:01:13 2015
config:

NAME                                            STATE     READ WRITE CKSUM
    vooolume                                        ONLINE       0     0     0
      raidz1-0                                      ONLINE       0     0     0
        gptid/10b23041-8a78-11e4-a36b-4439c45555ac  ONLINE       0     0     0
        gptid/114d3efc-8a78-11e4-a36b-4439c45555ac  ONLINE       0     0     0
        ada2                                        ONLINE       0     0     0
        gptid/137fc099-8a78-11e4-a36b-4439c45555ac  ONLINE       0     0     0

As you can see, the new drive is /dev/ada2. This made me investigate the other 3 drives and realized each has two partitions and the pool sits on the second partition.

Questions:
Why is there two partitions in the default FreeNAS setup drives?
Should I redo my new drive to look like the other drives (with two partition and all)?
I want to leave it as is but afraid I might be setting myself up for disaster down the line.

 

[enemy85]

what are the steps you took to replace your drive? Have you followed exactly what the manual says?

 

[cyberjock]

Somebody didn't replace the hard drive per the manual. ;)

 

[SweetAndLow]

I see a full backup and pool rebuild in your future.

 

[borghives]

No I didn't use the GUI as per the document because of the error I was getting. I could not recall the exact error I got just something about it being belonging to another pool and I have to do add '-f'. So I just use the following command line.

Code:

dd if=/dev/zero of=/dev/ada2 #clear the drive
zpool offline vooolume xxxxxx
(replace drive)
zpool replace vooolume xxxxxx /dev/ada2

I see a full backup and pool rebuild in your future.

SweetAndLow, can you expand on that? That is what I worry about.
For now, I will use the GUI to take that drive offline and go through the replace as per document (with the same drive).