Device part of an active pool

[Fredy]

Hello everyone!

I have a RAIDZ1 pool with about 2TB of data across 4 disks:

NAME STATE READ WRITE CKSUM
RAIDZ ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
da1 ONLINE 0 0 0
da3 ONLINE 0 0 0 block size: 512B configured, 4096B native
da0p2 ONLINE 0 0 0 block size: 512B configured, 4096B native
da2 ONLINE 0 0 0 block size: 512B configured, 4096B native


What I wanted to do is offline one of the drive (d0p2) which is a 4TB drive (the 3 others are 2TB)
While the pool is in a degraded state (I know the risks related to use a degraded pool), create a new stripe with the single 4TB drive to be able to move the data from the raidz1 pool to the single drive.

The problem I am experiencing is that Freenas won't let me create a new pool with the 4tb drive: it says the device is still part of an active pool on the system.... (even though that drive is offline)

Is there a way to bypass this security measure?

Thanks!

 

[Ericloewe]

Wipe the drive (strategically will save time, but a full wipe will work).

 

[Robert Trevellyan]

zpool labelclear should be sufficient.