[linux-lvm] mirrored lv with 6TB

[Jun'ichi Nomura]

Hi,

Michael Eisenkölbl / FIS wrote:
> *i want to create a volumegroup with a mirrored lv. but this is only
> possible up to 4TB.
> if i want to create a mirrored lv with 6TB, i got kernel panic with
> following in the /var/log/messages:*

It looks that dm-log requested too big write to dm-io and
dm-io couldn't handle it.

You should be able to work around it using larger region size
(-R option of lvcreate).

For example, the following command creates a LV with 4MB region size.
# lvcreate -L 6T -R 4 ...

Thanks,
-- 
Jun'ichi Nomura, NEC Corporation of America