Hello Zdenek, Thank you for your reply. Your method works well. I also understand the filter rules gradually. On 6/14/19 4:51 PM, Zdenek Kabelac wrote: > Dne 13. 06. 19 v 9:41 Heming Zhao napsal(a): >> Hello List, >> >> I created a md device, and used pvcreate to format it. >> But the pvcreate was failed with filter rules. >> the filter in /etc/lvm/lvm.conf: >> ``` >> filter = [ "r|/dev/.*/by-path/.*|", "r|/dev/.*/by-id/.*|", >> "r|/dev/fd.*|", "r|/dev/cdrom|" ] >> ``` > > > Hi > > This filter mostly eliminates ANY block device you have in the system. > The logic of filtering can be seen as puzzling, but please try to read > carefully comments in lvm.conf about filtering. It's explained there in > the great detail. > > As soon as the 'accept' rule is seen - the device gets accepted. > Otherwise if you remove device path - all it's associated clones will be > also removed. > > So when you block device generates one of /dev/*/by-path access paths > (and I'd assume /dev/md0 should be) - it gets removed. > > As 'quick fix' you can add 'a' rule for /dev/md.*... > > Regards > > Zdenek > _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
