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Subject: Re: Can't remove device -> I/O error
To: kreijack@inwind.it, linux-btrfs@vger.kernel.org
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From: DocMAX <docmax1978@gmail.com>
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 >> Did you removed the disk before mounting (physically or doing echo 1 
 >/sys/block/xxx/device/delete)? Which steps you performed ?

- removed drive physically

- mounted degraded mode

- btrfs dev del -> same i/o error