Check the PowerPath installation guide and release notes. One of them will have instructions for modifying the /etc/lvm/lvm.conf file to filter out the native names. I'd be more specific but the location of the information depends on the version of PowerPath in use. -Keith -----Original Message----- From: linux-lvm-bounces@redhat.com [mailto:linux-lvm-bounces@redhat.com] On Behalf Of Allen, Jack Sent: Friday, June 09, 2006 12:35 PM To: Gary.Mansell@ricardo.com; LVM general discussion and development Subject: RE: Using LVM with EMC Powerpath... -----Original Message----- From: linux-lvm-bounces@redhat.com [mailto:linux-lvm-bounces@redhat.com] On Behalf Of Gary Mansell Sent: Friday, June 09, 2006 9:20 AM To: linux-lvm@redhat.com Subject: Using LVM with EMC Powerpath... Hi, I have a powerpath device that I want to encapsulate in LVM so that I can grow it in the future but when I try and create the physical volume, I get an error: [root@ricserver ~]# powermt display dev=emcpowera Pseudo name=emcpowera CLARiiON ID=29R231J [Ricardo] Logical device ID=600601604EC01000E0FC2ED6AAF5DA11 [5FCALRAID5] state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP B, current=SP B ======================================================================== ====== ---------------- Host --------------- - Stor - -- I/O Path - -- Stats --- ### HW Path I/O Paths Interf. Mode State Q-IOs Errors ======================================================================== ====== 1 lpfc sde SP B0 active alive 0 0 2 lpfc sdi SP A1 active alive 0 0 3 lpfc sdm SP A0 active alive 0 0 4 lpfc sdq SP B1 active alive 0 0 When I try to create the physical volume: [root@ricserver ~]# pvcreate /dev/emcpowera1 Physical volume "/dev/emcpowera1" successfully created [root@ricserver ~]# pvscan Found duplicate PV QwbwqAi02sELEsEpefW6PNZ53XY8Wgo0: using /dev/emcpowera1 not /dev/sdq1 Found duplicate PV QwbwqAi02sELEsEpefW6PNZ53XY8Wgo0: using /dev/sde1 not /dev/sdq1 Found duplicate PV QwbwqAi02sELEsEpefW6PNZ53XY8Wgo0: using /dev/sdi1 not /dev/sdq1 Found duplicate PV QwbwqAi02sELEsEpefW6PNZ53XY8Wgo0: using /dev/sdm1 not /dev/sdq1 PV /dev/sda2 VG VolGroup00 lvm2 [33.75 GB / 32.00 MB free] PV /dev/sdq1 lvm2 [266.42 GB] Total: 2 [300.17 GB] / in use: 1 [33.75 GB] / in no VG: 1 [266.42 GB] What am I doing wrong? Any help gladly recieved Regards Gary Mansell ==================== Depending on the Linux version you are using, look at /etc/lvm/lvm.conf and do man on lvm.conf. Basically you need to exclude the /dev/sd* entries so the various LVM commands will not look at them. They will only look at the emcpower* names. Jack Allen _______________________________________________ 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/ _______________________________________________ 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/