When you 'down-convert' a mirror, you should be able to specify which
leg you want pulled.
# Change 2-way mirror to linear - specifying the device to be removed
prompt> lvconvert -m0 vg/lv /dev/sdb
brassow
On Sep 26, 2008, at 9:29 AM, daniele wrote:
Greetings everyone,
I have recently changed one of the mirrored-legs-hard-drives and
substituted it with a faster, bigger HD.
Now does it matter which leg is the first one?
I mean the home_mimage_0, right now is not on the fastest, and
newer(thus more reliable), hard drive. Does it matter? If so, is
there a way to quick switch it?
Anyway when I added the new HD to the mirror-legs, the first leg was
chosen to be on an old disk regardless of the order in which I
provided "/dev/mirror_disk1 /dev/mirror_disk2 /dev/mirror_log"
to lvcovert -m1.
Also when I do lvconvert a mirrored LV to an m0 linear one, how can
I choose which of the legs has to become the linear LV? So far it
seems that with "lvconvert -m0 vg00/home" the 'first' leg, is
automatically chosen to be the one(which is home_mimage_0). (That
might not be what one wants at times, and pvmoving the linear LV
after the lvconversion would be really a waste of resources and disk
efforts).
Thanks for any help or info on all this,
Best regards, Daniele.
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