Replace drive, now showing multiple resilvering actions expected only 1 (v9.3.1)

[jafin]

Using FreeNas 9.3.1

Using the GUI, I removed a drive from zfs2 volume, powered down the machine. Replaced drive, powered up and use the GUI to REPLACE the drive.

When I execute

Code:

zpool status

, it's showing 3 drives as (resilvering), I thought I'd only see the one new drive resilvering. Is this anything to be concerned about?

Code:

  pool: tank3
state: ONLINE
status: One or more devices is currently being resilvered.  The pool will
  continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
  scan: resilver in progress since Sat Dec 26 11:26:42 2015
  19.4T scanned out of 21.1T at 274M/s, 1h47m to go
  2.38T resilvered, 92.00% done
config:

  NAME  STATE  READ WRITE CKSUM
  tank3  ONLINE  0  0  0
  raidz2-0  ONLINE  0  0  0
  gptid/98efd9a1-ee79-11e1-ae8e-001e67350fad  ONLINE  0  0  0
  gptid/a0dcc8a8-ab6f-11e5-815a-001e67350fad  ONLINE  0  0  0  (resilvering)
  gptid/99aea380-ee79-11e1-ae8e-001e67350fad  ONLINE  0  0  0
  gptid/9a09da81-ee79-11e1-ae8e-001e67350fad  ONLINE  0  0  0
  gptid/9a6dd39e-ee79-11e1-ae8e-001e67350fad  ONLINE  0  0  0
  gptid/53994386-c4ea-11e3-a513-001e67350fad  ONLINE  0  0  0
  gptid/9b3674b2-ee79-11e1-ae8e-001e67350fad  ONLINE  0  0  0  (resilvering)
  gptid/9b9c1734-ee79-11e1-ae8e-001e67350fad  ONLINE  0  0  1  (resilvering)

errors: No known data errors

 

[Ericloewe]

Did you hotswap the drive? If so, it seems that, when you plugged in the new drive, several other drives browned out.

 

[chrisada]

Did you hotswap the drive? If so, it seems that, when you plugged in the new drive, several other drives browned out.

OP mentioned powering down then replacing the drive.

 

[Ericloewe]

OP mentioned powering down then replacing the drive.

Right, I missed that.

So, we have a minor mystery.

 

[jafin]

Everything went fine in the end, it was more a curiosity is all. One drive got 5 chksum errors (from zpool status) (and not the drive i replaced). Could I assume its because of this?