On 2016-06-07 09:52, Kai Hendry wrote:
On Tue, 7 Jun 2016, at 07:10 PM, Austin S. Hemmelgarn wrote:
Yes, although you would then need to be certain to run a balance with
-dconvert=raid1 -mconvert=raid1 to clean up anything that got allocated
before the new disk was added.
I don't quite understand when I should run this command.
Before I take it out? Once I take it out? One the new one is added?
On both systems once you've gotten the new devices added so that the
filesystems are no longer degraded.
And why doesn't it do this automatically? =)
Ideally, it shouldn't be needed at all, it's just needed due to a
deficiency in the high-level allocator in BTRFS. Once that is fixed,
this won't be needed at all, and I think the consensus is that that
should be fixed instead of adding in something that will need to be
taken out again later.
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