Hello folks, I have a system where I am using md based multipath arrays with LVM2. There was some maintenance on the IBM Shark SAN and when I rebooted this system I got errors when my little startup script tried to do a vgscan. The mdadm assemble step seems to have worked just fine, but here is a part of the error messages from vgscan [root@strongbad init.d]# vgscan Reading all physical volumes. This may take a while... Found volume group "local" using metadata type lvm2 Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Couldn't find device with uuid 'CAg9Sn-5Jpw-V9bq-w0zl-Cv2I-tBjP- qyw7QQ'. Couldn't find all physical volumes for volume group HPPR. Volume group "HPPR" not found Found volume group "dbms" using metadata type lvm2 It continues on like that with another volume group and different uuids. I have /dev/md0 through /dev/md11 defined with md and some of those seem OK, but md1, md2, md3, md4, md8, md9, md11 are not seen by vgscan. I tried pvcreate on those missing arrays, which made them visible, but LVM does not recognize them as part of the volume groups they belong to anymore. Can anyone suggest a course of action here? -- Bill Ranck Blacksburg, Va. 540-231-3951 _______________________________________________ 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/