On 11/04/17 18:37, Marian Csontos wrote:
On 04/10/2017 04:27 PM, lejeczek wrote:
On 10/04/17 13:27, Marian Csontos wrote:
On 04/10/2017 01:16 PM, lejeczek wrote:
I had 3 stripe LV, you know, three PVs, and wanted the
LV to have 4
stripes, wanted to add 4th PV, you can see it from
above lvdisplay.
What you want is "reshape" not extend. This was
committed as RAID
feature to 2.02.169, but it is still somewhat
experimental. You would
need to convert stripe LV to RAID0 (aka takeover) and
then reshape.
convert from stipe to raid0 would not preserve stripe
sizes? is this
correct?
It should keep stripe size and if it does not it is a bug.
then probably a bug, I don't have it as was on the console
in front of me now, but should be easy to replicate.
I had stripe LV with 16KB stripe and conversion(successful)
to raid0 said I got 64KB stripe raid0 - is how I remember it.
nor it would:
-I/--stripesize not allowed for LV dellH200.InternalB/0
when converting
from striped to raid0.
As it says, the option is simply not allowed. Also it
would be meaningless - one can not change stripe size
while converting stripe to raid0. At least not in RHEL-7.3
(lvm2-2.02.166). This is supposed to work in
upstream/2.02.169, but keep in mind that is a new feature,
and it is altering data, so better keep a working backup.
LVM version: 2.02.166(2)-RHEL7 (2016-11-16)
Library version: 1.02.135-RHEL7 (2016-11-16)
Driver version: 4.35.0
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