SOLVED How to completely remove the RAIDZ2 settings

[TwittyFlash]

Hi All,

I have some old SATA disks previously used as data disks with FreeNAS RAIDZ2 settings. These settings were apparently removed after using the MDADM commands of "stop" and "remove" parameters.
I am currently re-using it as part of a RAID1 array in a RHEL system. It turned out that after trying to use the MDADM commands to recreate it as part of a RAID1 array, the following errors ocurred for the reused disk:

"mdmon: imsm: Cannot open /dev/sdb: Device or resource busy"

"mdadm: /dev/sdb is not suitable for this array."

"mdadm: create aborted"

Any advice on this?

 

[SweetAndLow]

This is really confusing. Do you know this is the freenas forums? There is no raid or mdadm here, just zfs.

To clear a drive you can just format it, use gpart destroy or dd.

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