volume "soul" created[root@zeus ~]# lvs LV VG Attr LSize Origin Snap% Move Log Copy% Convert rock_and_roll mp3 -wi-a- 52.00m soul mp3 -wi-a- 12.00mObserving the VG[root@zeus ~]# vgdisplay -v mp3 Using volume group(s) on command line Finding volume group "mp3" --- Volume group --- VG Name mp3 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 92.00 MiB PE Size 4.00 MiB Total PE 23 Alloc PE / Size 16 / 64.00 MiB Free PE / Size 7 / 28.00 MiB VG UUID tc1JKq-TBBw-zYax-51ET-2A5t-hK0t-wsWXTO --- Logical volume --- LV Name /dev/mp3/rock_and_roll VG Name mp3 LV UUID EQ73g4-TFPw-6WTg-ufWp-RAXq-MVVU-fHSh9T LV Write Access read/write LV Status available # open 0 LV Size 52.00 MiB Current LE 13 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2 --- Logical volume --- LV Name /dev/mp3/soul VG Name mp3 LV UUID nchsYN-2eSX-Z3Bw-WV5w-2xxV-5oQM-8Vh8xj LV Write Access read/write LV Status available # open 0 LV Size 12.00 MiB Current LE 3 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:3 --- Physical volumes --- PV Name /dev/sdc1 PV UUID XUKAwo-eZRI-Gq12-7oUb-4w8w-25rN-t64cBI PV Status allocatable Total PE / Free PE 23 / 7Rename a LV:[root@zeus ~]# lvcreate -L 10M mp3 Rounding up size to full physical extent 12.00 MiB Logical volume "lvol0" created[root@zeus ~]# lvs LV VG Attr LSize Origin Snap% Move Log Copy% Convert lvol0 mp3 -wi-a- 12.00m rock_and_roll mp3 -wi-a- 52.00m soul mp3 -wi-a- 12.00m[root@zeus ~]# lvrename /dev/mp3/lvol0 /dev/mp3/celtic Renamed "lvol0" to "celtic" in volume group "mp3"[root@zeus ~]# lvs LV VG Attr LSize Origin Snap% Move Log Copy% Convert celtic mp3 -wi-a- 12.00m rock_and_roll mp3 -wi-a- 52.00m soul mp3 -wi-a- 12.00mResizing LVs[root@zeus ~]# lvresize -L 15M /dev/mp3/celtic4 Rounding up size to full physical extent 16.00 MiB Extending logical volume celtic to 16.00 MiB Logical volume celtic successfully resized[root@zeus ~]# lvresize -L 12M /dev/mp3/celtic WARNING: Reducing active logical volume to 12.00 MiB THIS MAY DESTROY YOUR DATA (filesystem etc.)Do you really want to reduce celtic? [y/n]: y Reducing logical volume celtic to 12.00 MiB Logical volume celtic successfully resizedExtending/Reducing VGs[root@zeus ~]# vgs VG #PV #LV #SN Attr VSize VFree mp3 1 3 0 wz--n- 92.00m 16.00m vg_zeus 1 2 0 wz--n- 7.51g 0[root@zeus ~]# vgextend mp3 /dev/sdc2 Volume group "mp3" successfully extended[root@zeus ~]# vgs VG #PV #LV #SN Attr VSize VFree mp3 2 3 0 wz--n- 424.00m 348.00m[root@zeus ~]# vgreduce mp3 /dev/sdc2 Removed "/dev/sdc2" from volume group "mp3"[root@zeus ~]#Moving extents from one disk to anotherMake sure you VG has more than one disk. In this case I have sdc1 and sdc2 and will move the extents from sdc1 to sdc2[root@zeus ~]# pvmove /dev/sdc1 /dev/sdc2 /dev/sdc1: Moved: 0.0% /dev/sdc1: Moved: 21.1% /dev/sdc1: Moved: 31.6% /dev/sdc1: Moved: 47.4% /dev/sdc1: Moved: 57.9% /dev/sdc1: Moved: 68.4% /dev/sdc1: Moved: 78.9% /dev/sdc1: Moved: 84.2% /dev/sdc1: Moved: 100.0%If now you take a look at sdc1 no extents are found in this partition (disc)[root@zeus ~]# pvdisplay -v /dev/sdc1