[linux-lvm] Raid1 -> linear conversion = destroyed data

[Phillip Susi]

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On 12/08/2014 03:59 PM, Jason Warr wrote:
> I may have missed part of the discussion but in order to fully 
> understand what is going on I'd like to know what arguments you
> used when you issued the "lvconvert --splitmirrors" command.  There
> are several options to it that can influence what happens to the
> mirror members.

The exact sequence of commands was:

lvconvert --type raid1 -m 1 faldara/utopic /dev/sdb1
lvconvert --splitmirrors 1 --trackchanges faldara/utopic --name
utopic-backup /dev/md0
lvconvert --splitmirrors 1 --trackchanges faldara/utopic --name
utopic-backup /dev/md0

The idea was to start using the new drive exclusively while keeping a
backup on the old drive.

Also I thought it was a bit odd that --splitmirrors accepted the
- --name argument, but silently ignored it, instead using an internal
auto generated name.


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