I'm using LVM2 with device-mapper-multipath 0.4.5 on GA RHEL 4 update 2 release, kernel version 2.6.9-22.ELsmp. Storage is 4 Clariion CX600 LUNs. I've got this filter statement in /etc/lvm/lvm.conf: filter = [ "a|^/dev/mapper/.*|", "r/.*/" ] and this for types: types = [ "device-mapper", 16 ] I notice any LVM2 commands that show PVs uses the dm-* devices: # pvs PV VG Fmt Attr PSize PFree /dev/dm-0 vgtest2 lvm2 a- 4.00G 3.90G /dev/dm-1 vgtest2 lvm2 a- 3.00G 2.90G /dev/dm-2 vgtest2 lvm2 a- 2.00G 1.90G /dev/dm-3 vgtest2 lvm2 a- 1020.00M 920.00M This is true except when /etc/lvm/.cache is brand new: # rm /etc/lvm/.cache # pvs PV VG Fmt Attr PSize PFree /dev/mapper/3600601604b600d00743e69d8862fda11 vgtest2 lvm2 a- 1020.00M 920.00M /dev/mapper/3600601604b600d00753e69d8862fda11 vgtest2 lvm2 a- 2.00G 1.90G /dev/mapper/3600601604b600d00763e69d8862fda11 vgtest2 lvm2 a- 3.00G 2.90G /dev/mapper/3600601604b600d00773e69d8862fda11 vgtest2 lvm2 a- 4.00G 3.90G # pvs PV VG Fmt Attr PSize PFree /dev/dm-0 vgtest2 lvm2 a- 4.00G 3.90G /dev/dm-1 vgtest2 lvm2 a- 3.00G 2.90G /dev/dm-2 vgtest2 lvm2 a- 2.00G 1.90G /dev/dm-3 vgtest2 lvm2 a- 1020.00M 920.00M Here's the /etc/lvm.cache file: # This file is automatically maintained by lvm. persistent_filter_cache { valid_devices=[ "/dev/mapper/3600601604b600d00763e69d8862fda11", "/dev/mpath/3600601604b600d00773e69d8862fda11", "/dev/mapper/3600601604b600d00753e69d8862fda11", "/dev/mpath/3600601604b600d00753e69d8862fda11", "/dev/mapper/vgtest2-lvstripe1", "/dev/vgtest2/lvstripe1", "/dev/mapper/3600601604b600d00773e69d8862fda11", "/dev/dm-2", "/dev/dm-3", "/dev/dm-4", "/dev/mpath/3600601604b600d00763e69d8862fda11", "/dev/dm-1", "/dev/mpath/3600601604b600d00743e69d8862fda11", "/dev/dm-0", "/dev/mapper/3600601604b600d00743e69d8862fda11" ] } If I remove everything but the /dev/mapper and lvstripe1 entries I get this: # pvs PV VG Fmt Attr PSize PFree /dev/mapper/3600601604b600d00743e69d8862fda11 vgtest2 lvm2 a- 1020.00M 920.00M /dev/mapper/3600601604b600d00753e69d8862fda11 vgtest2 lvm2 a- 2.00G 1.90G /dev/mapper/3600601604b600d00763e69d8862fda11 vgtest2 lvm2 a- 3.00G 2.90G /dev/mapper/3600601604b600d00773e69d8862fda11 vgtest2 lvm2 a- 4.00G 3.90G # pvs PV VG Fmt Attr PSize PFree /dev/mapper/3600601604b600d00743e69d8862fda11 vgtest2 lvm2 a- 1020.00M 920.00M /dev/mapper/3600601604b600d00753e69d8862fda11 vgtest2 lvm2 a- 2.00G 1.90G /dev/mapper/3600601604b600d00763e69d8862fda11 vgtest2 lvm2 a- 3.00G 2.90G /dev/mapper/3600601604b600d00773e69d8862fda11 vgtest2 lvm2 a- 4.00G 3.90G Is this just cosmetic? Is there a config change I can do to make path listings consistent? Thanks in advance, Phil Lowden -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel