[linux-lvm] dm thinp: pool get's bigger than allowd virtual disk

[linux-lvm] dm thinp: pool get's bigger than allowd virtual disk

[Stefan Priebe]

Hello list,

i created a thinp device with a maximum size of 100G and an initial size 
of 10G.

I started to copy 100GB to this disk and end up like this:

# lvs
     LV    VG      Attr     LSize   Pool  Origin Data%  Move Log Copy%
  Convert
     disk1 thinvol Vwi-aotz 100,00g pool1         99,96
     pool1 thinvol twi-a-tz 123,86g               80,71

this will waste 123,86g for all the time ?! As i can't use them.

Is this known? Is there a fix / solution?

Greets,
Stefan

Re: [linux-lvm] dm thinp: pool get's bigger than allowd virtual disk

[Alasdair G Kergon]

On Sun, Aug 05, 2012 at 11:35:12PM +0200, Stefan Priebe wrote:
> this will waste 123,86g for all the time ?! As i can't use them.

Did you have it configured to auto-expand to a size larger than you
know you need?  (See logs / dmeventd / lvm.conf)

Alasdair

Re: [linux-lvm] dm thinp: pool get's bigger than allowd virtual disk

[Stefan Priebe - Profihost AG]

Am 06.08.2012 00:14, schrieb Alasdair G Kergon:
> On Sun, Aug 05, 2012 at 11:35:12PM +0200, Stefan Priebe wrote:
>> this will waste 123,86g for all the time ?! As i can't use them.
>
> Did you have it configured to auto-expand to a size larger than you
> know you need?  (See logs / dmeventd / lvm.conf)

I've configured these settings in lvm.conf:

     thin_pool_autoextend_threshold = 80
     thin_pool_autoextend_percent = 15

     monitoring = 1

     polling_interval = 15

Thanks,
Stefan