[root@localhost /]# fdisk -l

Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          65      522081   83  Linux
/dev/sda2              66       30401   243673920   8e  Linux LVM

Disk /dev/sdb: 164.6 GB, 164696555520 bytes
255 heads, 63 sectors/track, 20023 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1          65      522081   83  Linux
/dev/sdb2              66       20023   160312635   8e  Linux LVM
[root@localhost /]#

[root@localhost /]# mount -l
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda1 on /boot type ext3 (rw) [/boot]
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)

[root@localhost /]# lvm lvs
  LV       VG         Attr   LSize   Origin Snap%  Move Log Copy%
  LogVol00 VolGroup00 -wi-ao 230.44G
  LogVol01 VolGroup00 -wi-ao   1.94G

[root@localhost /]# lvm pvs -a
  WARNING: Duplicate VG name VolGroup00: Existing Vgs0w2-0j2x-cft2-oI1j-bV00-BdEC-xIIYfc (created here) takes precedence over 2414FK-8hzo-botP-F5hw-8M1U-wWfx-9giXeV
  PV                       VG         Fmt  Attr PSize   PFree
  /dev/VolGroup00/LogVol01                 --        0      0
  /dev/ram                                 --        0      0
  /dev/ram10                               --        0      0
  /dev/ram11                               --        0      0
  /dev/ram12                               --        0      0
  /dev/ram13                               --        0      0
  /dev/ram14                               --        0      0
  /dev/ram15                               --        0      0
  /dev/ram2                                --        0      0
  /dev/ram3                                --        0      0
  /dev/ram4                                --        0      0
  /dev/ram5                                --        0      0
  /dev/ram6                                --        0      0
  /dev/ram7                                --        0      0
  /dev/ram8                                --        0      0
  /dev/ram9                                --        0      0
  /dev/ramdisk                             --        0      0
  /dev/root                                --        0      0
  /dev/sda                                 --        0      0
  /dev/sda1                                --        0      0
  /dev/sda2                VolGroup00 lvm2 a-   232.38G     0
  /dev/sdb                                 --        0      0
  /dev/sdb1                                --        0      0
  /dev/sdb2                VolGroup00 lvm2 a-   152.88G 32.00M

[root@localhost /]# lvm vgs -a
  WARNING: Duplicate VG name VolGroup00: Existing Vgs0w2-0j2x-cft2-oI1j-bV00-BdEC-xIIYfc (created here) takes precedence over 2414FK-8hzo-botP-F5hw-8M1U-wWfx-9giXeV
  VG         #PV #LV #SN Attr   VSize   VFree
  VolGroup00   1   3   0 wz--n- 152.88G 32.00M
  VolGroup00   1   2   0 wz--n- 232.38G     0

[root@localhost /]# lvm lvmdiskscan help
  /dev/ramdisk             [       16.00 MB]
  /dev/root                [      230.44 GB]
  /dev/ram                 [       16.00 MB]
  /dev/sda1                [      509.84 MB]
  /dev/VolGroup00/LogVol01 [        1.94 GB]
  /dev/ram2                [       16.00 MB]
  /dev/sda2                [      232.39 GB] LVM physical volume
  /dev/ram3                [       16.00 MB]
  /dev/ram4                [       16.00 MB]
  /dev/ram5                [       16.00 MB]
  /dev/ram6                [       16.00 MB]
  /dev/ram7                [       16.00 MB]
  /dev/ram8                [       16.00 MB]
  /dev/ram9                [       16.00 MB]
  /dev/ram10               [       16.00 MB]
  /dev/ram11               [       16.00 MB]
  /dev/ram12               [       16.00 MB]
  /dev/ram13               [       16.00 MB]
  /dev/ram14               [       16.00 MB]
  /dev/ram15               [       16.00 MB]
  /dev/sdb1                [      509.84 MB]
  WARNING: Duplicate VG name VolGroup00: Existing Vgs0w2-0j2x-cft2-oI1j-bV00-BdEC-xIIYfc (created here) takes precedence over 2414FK-8hzo-botP-F5hw-8M1U-wWfx-9giXeV
  /dev/sdb2                [      152.89 GB] LVM physical volume
  3 disks
  17 partitions
  0 LVM physical volume whole disks
  2 LVM physical volumes