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.
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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