https://community.hpe.com/t5/operating-system-linux/pv-name-in-dev-mapper-format-in-sles-10-sp2/m-p/4626511#M40691 Your *PV*s can be in /dev/mapper/* format only if they are something other than simple disks, e.g. software RAID arrays, encrypted volumes or multipathed disks. So what are they?<BR /><BR />Check the "preferred_names" setting in the "devices" section of /etc/lvm/lvm.conf.<BR /><BR />If there is a default preferred_names setting, comment it out, and write another line like this instead:<BR /><BR />preferred_names = [ "^/dev/mapper/" ]<BR /><BR />Then run "vgscan -vvvv" to regenerate the LVM metadata cache, and check that all the disk devices are displayed using the names you like. <BR /><BR />If necessary, you can list multiple name prefixes in the preferred_names line, in order of preference: the default lvm.conf file usually has at least one or two examples commented out.<BR /><BR />MK Sat, 01 May 2010 10:29:29 GMT Matti_Kurkela 2010-05-01T10:29:29Z https://community.hpe.com/t5/operating-system-linux/pv-name-in-dev-mapper-format-in-sles-10-sp2/m-p/4626510#M40690 i want to have PV name in /dev/mapper/* format<BR />in SLES10 SP2.<BR /><BR />pls tell me the lvm.conf settings required for that Fri, 30 Apr 2010 08:13:33 GMT https://community.hpe.com/t5/operating-system-linux/pv-name-in-dev-mapper-format-in-sles-10-sp2/m-p/4626510#M40690 ideep 2010-04-30T08:13:33Z https://community.hpe.com/t5/operating-system-linux/pv-name-in-dev-mapper-format-in-sles-10-sp2/m-p/4626511#M40691 Your *PV*s can be in /dev/mapper/* format only if they are something other than simple disks, e.g. software RAID arrays, encrypted volumes or multipathed disks. So what are they?<BR /><BR />Check the "preferred_names" setting in the "devices" section of /etc/lvm/lvm.conf.<BR /><BR />If there is a default preferred_names setting, comment it out, and write another line like this instead:<BR /><BR />preferred_names = [ "^/dev/mapper/" ]<BR /><BR />Then run "vgscan -vvvv" to regenerate the LVM metadata cache, and check that all the disk devices are displayed using the names you like. <BR /><BR />If necessary, you can list multiple name prefixes in the preferred_names line, in order of preference: the default lvm.conf file usually has at least one or two examples commented out.<BR /><BR />MK Sat, 01 May 2010 10:29:29 GMT https://community.hpe.com/t5/operating-system-linux/pv-name-in-dev-mapper-format-in-sles-10-sp2/m-p/4626511#M40691 Matti_Kurkela 2010-05-01T10:29:29Z