Create an LV/file system or expand a file system in linux

Create an LV/File System in linux or expand the file system [root @ r1c2b6/] # lvcreate-L 100 M-n xyy/dev/vg00 // create a lv Rounding up size to full physical extent 128.00 MB Logical volume "xyy" created [root @ r1c2b6/] # mkfs-t ext3/dev/vg00/xyy // create a file system mke2fs 1.39 (29-May-2006) filesystem label = OS type: LinuxBlock size = 1024 (log = 0) Fragment size = 1024 (log = 0) 32768 inodes, 131072 blocks6553 blocks (5.00%) reserved for the super userFirst data Block = 1 Maximum filesystem blocks = 6737100816 block groups8192 blocks per group, 8192 fragments per group2048 inodes per groupSuperblock backups stored on blocks: 8193,245 77, 40961,573 45, 73729 Writing inode tables: done Creating journal (4096 blocks): doneWriting superblocks and filesystem accounting information: doneThis filesystem will be automatically checked every 26 mounts or180 days, whiche Ver comes first. use tune2fs-c or-I to override. [root @ r1c2b6/] # mount/dev/vg00/xyy // mount to a file, there is a/xyy file in the root directory [root @ r1c2b6/] # df-H file system capacity in use available % mount point/dev/cciss/c0d0p1 3.9G 385 M 3.3G 11% // dev/mapper/vg00-lvol7 39G 5.7G 32G 16%/home/dev/mapper/vg00-lvol6 9.7G 151 M 9.1G 2%/opt/dev/mapper/vg00-lvol3 4.9G 139 M 4.5G 3%/tmp/dev/mapper/vg00-lvol5 4.9G 228 M 4.4G 5%/var/dev/mapper/vg00-lvol4 9.7G 2.5G 6.8G 27%/usrtmpfs 7.8G 0 7.8G 0%/dev/shm/dev/mapper/vg00-xyy 124 M 5.6 M 113/xyy [root @ r1c2b6/] # lvextend -L + 200 M/dev/vg00/xyy // expand LV size Rounding up size to full physical extent 224.00 MB Extending logical volume xyy to 352.00 MB Logical volume xyy successfully resized [root @ r1c2b6/] # resize2fs/dev/vg00/xyy // re-create the file system resize2fs 1.39 for LV online (29-May-2006) filesystem at/dev/vg00/xyy is mou Nted on/xyy; on-line resizing required‑ming an on-line resize of/dev/vg00/xyy to 360448 (1 k) blocks. the filesystem on/dev/vg00/xyy is now 360448 blocks long .. [Root @ r1c2b6/] # df-H file system capacity in use available % mount point/dev/cciss/c0d0p1 3.9G 385 M 3.3G 11% // dev/mapper/vg00-lvol7 39G 5.7G 32G 16%/home/dev/mapper/vg00-lvol6 9.7G 151 M 9.1G 2%/opt/dev/mapper/vg00-lvol3 4.9G 139 M 4.5G 3%/tmp/dev /mapper/vg00-lvol5 4.9G 228 M 4.4G 5%/var/dev/mapper/vg00-lvol4 9.7G 2.5G 6.8G 27%/usrtmpfs 7.8G 0 7.8G 0%/dev/shm/dev /mapper/vg00-xyy 341 M 6.1 M 318 M 2%/xyy [root @ r1c2b6/] # umoun T/xyy // cancel lv mounting [root @ r1c2b6/] # lvremove/dev/vg00/xyy // Delete lvDo you really want to remove active logical volume xyy? [Y/n]: y Logical volume "xyy" successfully removed [root @ r1c2b6/] # df-H file system capacity in use available % mount point/dev/cciss/c0d0p1 3.9G 385 M 3.3G 11% // dev/mapper/vg00-lvol7 39G 5.7G 32G 16%/home/dev/mapper/vg00-lvol6 9.7G 151 M 9.1G 2%/opt/dev/mapper/vg00-lvol3 4.9G 139 M 4.5G 3%/tmp/dev/mapper/vg00-lvol5 4.9G 228 M 4.4G 5%/var/dev/mapper/vg00-lvol4 9.7G 2.5G 6.8G 27%/usrtmpfs 7.8G 0 7.8G 0%/dev/shm [root @ r1c2b6/] # vgdisplay --- Volume group --- VG Name vg00 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 14 VG Access read/write VG Status resizable max lv 0 Cur LV 6 Open LV 6 Max PV 0 Cur PV 1 Act PV 1 VG Size 275.34 gb pe Size 32.00 MB Total PE 8811 Alloc PE/Size 2432/76 .00 GB Free PE/Size 6379/199 .34 gb vg uuid h62KMe-WrQO-tJ4o-0AmN-zkUs-HHhk-5p7iiv [root @ r1c2b6/] # lvdisplay --- Logical volume --- LV Name/dev/vg00/lvol7 VG Name vg00 lv uuid T2jVvH-ndly-Kkvu-N2IR-YyNP-TrlI-OZlh15 LV Write Access read/write LV Status available # open 1 LV Size 40.00 GB Current LE 1280 Segments 1 Allocation inherit Read ahead sectors auto-currently set to 256 Block device 253: 0 --- Logical volume --- LV Name/dev/vg00/lvol6 VG Name vg00 lv uuid RJISQb-lVtd-9wiU-tUJv-2Z1t-5bKq-AxtQ0y LV Write Access read/write LV Status available # open 1 LV Size 10.00 GB Current LE 320 Segments 1 allocation inherit Read ahead sectors auto-currently set to 256 Block device 253: 1 --- Logical volume --- LV Name/dev/vg00/lvol3 VG Name vg00 lv uuid unzip LV Write Access read/write LV Status available # open 1 LV Size 5.00 GB Current LE 160 Segments 1 allocation inherit Read ahead sectors auto-currently set to 256 Block device 253: 2 --- Logical volume --- LV Name/dev/vg00/lvol5 VG Name vg00 lv uuid aWbd1e-gjBd-lwDd-NoHG-IugQ-vddx-HEo4T6 LV Write Access read/write LV Status available # open 1 LV Size 5.00 GB Current LE 160 Segments 1 allocation inherit Read ahead sectors auto-currently set to 256 Block device 253: 3 --- Logical volume --- LV Name/dev/vg00/lvol4 VG Name vg00 lv uuid CRZDnC-TqtI-nlgE-Jo8o-R6Rr-EfAu-1QWlsT LV Write Access read/write LV Status available # open 1 LV Size 10.00 GB Current LE 320 Segments 2 allocation inherit Read ahead sectors auto-currently set to 256 Block device 253: 4 --- Logical volume --- LV Name/dev/vg00/lvol2 VG Name vg00 lv uuid CiwBMK-lkr8-YrS3-cJDL-3b4R-MZhN-cuLfsf LV Write Access read/write LV Status available # open 1 LV Size 6.00 GB Current LE 192 Segments 1 allocation inherit Read ahead sectors auto-currently set to 256 Block device 253: 5 [root @ r1c2b6/] # lvdisplay-v/dev/vg00/lvol2 Using logical volume (s) on command line --- Logical volume --- LV Name/dev/vg00/lvol2 VG Name vg00 lv uuid CiwBMK-lkr8-YrS3-cJDL-3b4R-MZhN-cuLfsf LV Write Access read/write LV Status available # open 1 LV Size 6.00 GB Current LE 192 segments 1 Allocation inherit Read ahead sectors auto-currently set to 256 Block device 253: 5 [root @ r1c2b6/] # lvdisplay-v/dev/vg00/xyy // check whether Using logical volume (s) on command line One or more specified logical volume (s) has been deleted) not found. [root @ r1c2b6/] #