Zpool replace -f

[ChriZathens]

Hi guys!
I removed an HDD from my Pool and wanted to replace it with a different one..
I got a few strange behavior but after a reboot seems sorted out so there is no point to write more about them..
But when i chose to replace it with the new one I got :

Code: Select all

invalid vdev specification
use '-f' to override the following errors:
/dev/ada3.nop is part of potentially active pool 'Main_Pool'

The "Main_Pool" was an old destroyed pool I had in the past. I thought that it makes sense to have kept info so I wiped the drive using the method described in the wiki
But I got again the same error..
So I finally run a

Code: Select all

zpool replace -f Media3 5777340420297675354 ada3.nop

and it imported just fine..
Shouldn't there be an option in the webgui to use the -f flag in case it is needed
P.S.: The steps I performed were the following: I believe I have omitted a few steps, but all is fine nevertheless
1. Physically removed the HDD
2. After a reboot I issued the replace command via the webui...

I suspect there should be in between steps to take the device offline and then remove it before actually running the replace command...

[raulfg3]

I detected in the past the same behaviour, and use the wipe script describe on the wiki , and same as you do not work, I increase the wipe sectors to 10 and this time works fine, perhaps is time to update script in wiki from 1 to 10 sectors to be sure that all relevant metadata info is deleted.


Someother that can confirm this?

[al562]

I didn't know reason why you cant. But ZFS label is written in 4 times. Each size is 256KiB.
The head is called L0L1. The tail is called L2L3.
So, at least, you must clear head of 512KiB and tail of 512KiB. (+ disk header such as GPT/MBR/GEOM)
This is 512KiB not 512B, it means 524288 bytes.

Note: you can see the label by:

# zdb -l /dev/XXXX

Daisuke Aoyama