From: Nathan Dehnel <ncdehnel@gmail.com>
To: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: How to replace a missing device with a smaller one
Date: Sun, 17 Nov 2019 20:09:28 -0600 [thread overview]
Message-ID: <CAEEhgEt_hNzY7Y3oct767TGGOHpqvOn4V_xWoOOB0NfYi1cswg@mail.gmail.com> (raw)
I have a 10-disk raid10 with a missing device I'm trying to replace. I
get this error when doing it though:
btrfs replace start 1 /dev/bcache0 /mnt
ERROR: target device smaller than source device (required 1000203091968 bytes)
I see that people recommend resizing a disk before replacing it, which
isn't an option for me because it's gone. I'm replacing the drive by
copying from its mirror, so can I resize the mirror and then replace?
How do I do that? Do I need to run "btrfs fi res" on each of the
remaining drives in the array?
next reply other threads:[~2019-11-18 2:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-18 2:09 Nathan Dehnel [this message]
2019-11-18 5:32 ` How to replace a missing device with a smaller one Qu Wenruo
2019-11-18 7:08 ` Qu Wenruo
2019-11-19 14:38 ` David Sterba
2019-11-20 0:02 ` Qu Wenruo
2019-11-20 0:05 ` Zygo Blaxell
2019-11-21 10:21 ` Anand Jain
2019-11-24 23:02 ` Nathan Dehnel
2019-11-20 17:07 ` Chris Murphy
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