[root@rheltest1 ~]#pvcreate /dev/sdb1
Physical volume "/dev/sdb1" successfully created
[root@rheltest1 ~]#pvcreate /dev/sdb2
Physical volume "/dev/sdb2" successfully created
[root@rheltest1 ~]#pvs
PV VG Fmt Attr PSize PFree
/dev/sda3 VolGroup00 lvm2 a- 18.88G 0
/dev/sdb1 lvm2 a- 486.31M 486.31M
/dev/sdb2 lvm2 a- 466.35M 466.35M
[root@rheltest1 ~]#vgcreate VG01 /dev/sdb1 /dev/sdb2
/dev/cdrom: open failed: Read-only file system
/dev/cdrom: open failed: Read-only file system
/dev/cdrom: open failed: Read-only file system
/dev/cdrom: open failed: Read-only file system
Volume group "VG01" successfully created
[root@rheltest1 ~]#vgs
VG #PV #LV #SN Attr VSize VFree
VG01 2 0 0 wz--n- 948.00M 948.00M
VolGroup00 1 2 0 wz--n- 18.88G 0
[root@rheltest1 ~]#lvcreate -L 400M VG01 -n LV01
Logical volume "LV01" created
[root@rheltest1 ~]#lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
LV01 VG01 -wi-a- 400.00M
LogVol00 VolGroup00 -wi-ao 11.72G
LogVol01 VolGroup00 -wi-ao 7.16G
[root@rheltest1 ~]#mkfs.ext3 /dev/mapper/VG01-LV01
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
102400 inodes, 409600 blocks
20480 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=67633152
50 block groups
8192 blocks per group, 8192 fragments per group
2048 inodes per group
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 28 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@rheltest1 ~]#fdisk -l
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 144 1052257+ 82 Linux swap / Solaris
/dev/sda3 145 2610 19808145 8e Linux LVM
Disk /dev/sdb: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 62 497983+ 8e Linux LVM
/dev/sdb2 63 122 477540 8e Linux LVM
Partition 2 does not end on cylinder boundary.
[root@rheltest1 ~]#mkdir test
[root@rheltest1 ~]#mount /dev/
Display all 203 possibilities? (y or n)
[root@rheltest1 ~]#mount /dev/VG01/LV01 /root/test/
[root@rheltest1 ~]#df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
7.0G 3.8G 2.9G 57% /
/dev/mapper/VolGroup00-LogVol00
12G 158M 11G 2% /usr/local
/dev/sda1 99M 20M 74M 22% /boot
tmpfs 217M 0 217M 0% /dev/shm
none 217M 104K 217M 1% /var/lib/xenstored
/dev/hdc 3.0G 3.0G 0 100% /media/RHEL_5.6 i386 DVD
/dev/mapper/VG01-LV01
388M 11M 358M 3% /root/test
[root@rheltest1 ~]#umount /root/test/
[root@rheltest1 ~]#lvresize -L 800M /dev/V
VG01/ VolGroup00/
[root@rheltest1 ~]#lvresize -L 800M /dev/VG01/LV01
Extending logical volume LV01 to 800.00 MB
Logical volume LV01 successfully resized
[root@rheltest1 ~]#mount /dev/VG01/LV01 /root/test/
[root@rheltest1 ~]#df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
7.0G 3.8G 2.9G 57% /
/dev/mapper/VolGroup00-LogVol00
12G 158M 11G 2% /usr/local
/dev/sda1 99M 20M 74M 22% /boot
tmpfs 217M 0 217M 0% /dev/shm
none 217M 104K 217M 1% /var/lib/xenstored
/dev/hdc 3.0G 3.0G 0 100% /media/RHEL_5.6 i386 DVD
/dev/mapper/VG01-LV01
388M 11M 358M 3% /root/test
[root@rheltest1 ~]#umount /root/test/
[root@rheltest1 ~]#resize2fs /dev/VG01/LV01 700M
resize2fs 1.39 (29-May-2006)
Please run 'e2fsck -f /dev/VG01/LV01' first.
[root@rheltest1 ~]#e2fsck -f /dev/VG01/LV01
e2fsck 1.39 (29-May-2006)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/VG01/LV01: 11/102400 files (9.1% non-contiguous), 23472/409600 blocks
[root@rheltest1 ~]#resize2fs /dev/VG01/LV01 700M
resize2fs 1.39 (29-May-2006)
Resizing the filesystem on /dev/VG01/LV01 to 716800 (1k) blocks.
The filesystem on /dev/VG01/LV01 is now 716800 blocks long.
[root@rheltest1 ~]#mount /dev/VG01/LV01 /root/test/
[root@rheltest1 ~]#df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
7.0G 3.8G 2.9G 57% /
/dev/mapper/VolGroup00-LogVol00
12G 158M 11G 2% /usr/local
/dev/sda1 99M 20M 74M 22% /boot
tmpfs 217M 0 217M 0% /dev/shm
none 217M 104K 217M 1% /var/lib/xenstored
/dev/hdc 3.0G 3.0G 0 100% /media/RHEL_5.6 i386 DVD
/dev/mapper/VG01-LV01
678M 11M 633M 2% /root/test
[root@rheltest1 ~]#ls
1.txt anaconda-ks.cfg Desktop install.log install.log.syslog test
[root@rheltest1 ~]#resize2fs /dev/VG01/LV01
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/VG01/LV01 is mounted on /root/test; on-line resizing required
Performing an on-line resize of /dev/VG01/LV01 to 819200 (1k) blocks.
The filesystem on /dev/VG01/LV01 is now 819200 blocks long.
[root@rheltest1 ~]#df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
7.0G 3.8G 2.9G 57% /
/dev/mapper/VolGroup00-LogVol00
12G 158M 11G 2% /usr/local
/dev/sda1 99M 20M 74M 22% /boot
tmpfs 217M 0 217M 0% /dev/shm
none 217M 104K 217M 1% /var/lib/xenstored
/dev/hdc 3.0G 3.0G 0 100% /media/RHEL_5.6 i386 DVD
/dev/mapper/VG01-LV01
775M 11M 725M 2% /root/test
[root@rheltest1 ~]#lvresize -L 850M /dev/VG01/LV01
Rounding up size to full physical extent 852.00 MB
Extending logical volume LV01 to 852.00 MB
Logical volume LV01 successfully resized
[root@rheltest1 ~]#resize2fs /dev/VG01/LV01
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/VG01/LV01 is mounted on /root/test; on-line resizing required
Performing an on-line resize of /dev/VG01/LV01 to 872448 (1k) blocks.
The filesystem on /dev/VG01/LV01 is now 872448 blocks long.
[root@rheltest1 ~]#df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol01
7.0G 3.8G 2.9G 57% /
/dev/mapper/VolGroup00-LogVol00
12G 158M 11G 2% /usr/local
/dev/sda1 99M 20M 74M 22% /boot
tmpfs 217M 0 217M 0% /dev/shm
none 217M 104K 217M 1% /var/lib/xenstored
/dev/hdc 3.0G 3.0G 0 100% /media/RHEL_5.6 i386 DVD
/dev/mapper/VG01-LV01
825M 11M 773M 2% /root/test
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