On Mon, Jan 23, 2012 at 12:36 AM, James [off-list ref] wrote:

I bought one drive to replace the failing one. I'd like to end up wit=

h

RAID1. Back in July I set up a server for my brother and (unless I'm
forgetting a different path we ended up taking), I thought what I did
was:
=A01. mkfs.btrfs on a single drive but tell it to use RAID1
=A02. copy data on
=A03. once the second drive for the RAID1 was available, add it to th=

e

volume and rebalance (or something)

I must be mixing memories. Maybe that's what I did to end up with the
volume that turned out to be RAID0 for the data. On a whim, even
thought btrfs filesystem df /path showed no indications of RAID after
adding the second drive, I issued a balance command. I ran 'df' right
away and now see the results I don't want -- RAID0 data, RAID1
metadata. Ctrl-C doesn't seem to be aborting the balance.

Especially with the currently inflated HDD prices compared to a few
months ago, I can't afford to go out and buy an extra drive just to
facilitate turning two drives into a mirror. Is there another way?

Thanks,
James.

Since I had to get all the data off the volume with the failing drive=

,

I tried doing the above. All my data is on the new drive, but when I
add the other good drive to the volume, I just see it as a volume
containing two drives, not as RAID1.

Is there any way for me to get my current single disk volume into a
RAID1 volume by adding the other drive? I didn't save the reference,
but I thought I read something last night about being able to create =

a

"RAID1" volume with a single disk as having been a bug.

Thanks,
James.

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