Hello,
If you look at the output of `lvs myvg`, then you will understand whats
happens.
When you create thin LV without specifying option `-T`, lvm
automatically created TP for you with size equal to -L option.
And when you resize your sparsevol, your TP (auto name lvol1) still have
old size.
Regards,
Alexey Mochkin
On 2015-10-14 23:18, Chris Friesen wrote:
Hi,
I'm running the 3.14 kernel with lvm 2.02.98 and I ran into something
unexpected with lvresize.
I created a sparse volume:
lvcreate -L 25M -V 50M -n sparsevol myvg
This gives output in lvdisplay like this:
LV Size 52.00 MiB
Current LE 13
COW-table size 28.00 MiB
COW-table LE 7
I then resized the volume with lvresize:
lvresize -L 200M myvg/sparsevol
This seems to resize the COW-table, but not the volume itself. Now
lvdisplay shows:
LV Size 52.00 MiB
Current LE 13
COW-table size 200.00 MiB
COW-table LE 50
At this point I've got 200MiB of backing store and running "lvs" shows
an LSize of "200m" but I can only write 52MiB worth of data to the
volume before it complains.
Is there a way to expand the "LV Size" shown in lvdisplay so that I
can write the resized amount of data to the volume?
Thanks,
Chris
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