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 _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/