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IamSpartacus

Second btrfs cache / Unassigned Disks pool?

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I remember seeing someone (maybe @johnnie.black?) talking about how it's possible to create a second btrfs pool (i think with unassigned devices plug-in) through the CLI.  I've been searching but can't find any info on this.  Can someone school me on this or point me towards this topic?

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Hey @johnnie.black, question about adding a pool via the UD plugin.  I've done so following your directions but as soon as I convert to RAID1 the second device shows as unformatted in UD.

 

 

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Edited by IamSpartacus

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You're missing the partition when adding it, it should be:

 

btrfs dev add -f /dev/nvme1n1p1

 

 

 

 

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3 hours ago, johnnie.black said:

You're missing the partition when adding it, it should be:

 

btrfs dev add -f /dev/nvme1n1p1

 

 

 

 

Oh ok thanks.  That's missing from your FAQ so might want to add it to avoid others like me bothering you in the future ;).

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33 minutes ago, IamSpartacus said:

That's missing from your FAQ

It's not. it even says note the 1 in the end to specify the partition, though for NVMe devices it's p1 instead of just 1, I'll add that.

 

 

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Just now, johnnie.black said:

It's not. it even says note the 1 in the end to specify the partition, though for NVMe devices it's p1 instead of just 1, I'll add that.

 

 

Oh I see.  I thought the "note the 1" was just referencing the first device.  My mistake.

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9 hours ago, johnnie.black said:

You're missing the partition when adding it, it should be:

 

btrfs dev add -f /dev/nvme1n1p1

 

 

 

 

 

Thanks, this worked perfectly.

Edited by IamSpartacus

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