Linux Volume management

[Email protected] ~]# df-h
Filesystem Size used Avail use% mounted on
/dev/sda3 19G 11G 6.5G 63%/
Tmpfs 995M 239M 756M 24%/DEV/SHM
/DEV/SDA1 194M 46M 139M 25%/boot
/DEV/SDA4 20G 1.4G 18G 7%/rman
/DEV/SDB1 30G 863M 28G 4%/arch1
[Email protected] ~]# fdisk-l

disk/dev/sda:42.9 GB, 42949672960 bytes
255 heads, Sectors/track, 5221 cylinders
Units = Cylinders of 16065 * 8225280 bytes
Sector size (logical/physical): bytes/512 bytes
I/O size (minimum/optimal): bytes/512 bytes
Disk identifier:0x00079a2c

Device Boot Start End Blocks Id System
/DEV/SDA1 * 1 204800 Linux
Partition 1 does not end on cylinder boundary.
/DEV/SDA2 217 1536000 Swap/solaris
Partition 2 does not end on cylinder boundary.
/dev/sda3 217 2611 19229696-up Linux
/DEV/SDA4 2611 5221 20966162+-up Linux

disk/dev/sdb:32.2 GB, 32212254720 bytes
Heads, Wuyi sectors/track, 19275 cylinders
Units = Cylinders of 3264 * 1671168 bytes
Sector size (logical/physical): bytes/512 bytes
I/O size (minimum/optimal): bytes/512 bytes
Disk identifier:0x4867b2f5

Device Boot Start End Blocks Id System
/DEV/SDB1 1 19276 31456256 Linux

disk/dev/sdc:5368 MB, 5368709120 bytes
255 heads, Sectors/track, 652 cylinders
Units = Cylinders of 16065 * 8225280 bytes
Sector size (logical/physical): bytes/512 bytes
I/O size (minimum/optimal): bytes/512 bytes
Disk identifier:0x00000000

DISK/DEV/SDC doesn ' t contain a valid partition table

disk/dev/sdd:5368 MB, 5368709120 bytes
255 heads, Sectors/track, 652 cylinders
Units = Cylinders of 16065 * 8225280 bytes
Sector size (logical/physical): bytes/512 bytes
I/O size (minimum/optimal): bytes/512 bytes
Disk identifier:0x00000000

DISK/DEV/SDD doesn ' t contain a valid partition table

disk/dev/sde:5368 MB, 5368709120 bytes
255 heads, Sectors/track, 652 cylinders
Units = Cylinders of 16065 * 8225280 bytes
Sector size (logical/physical): bytes/512 bytes
I/O size (minimum/optimal): bytes/512 bytes
Disk identifier:0x00000000

Disk/dev/sde doesn ' t contain a valid partition table

disk/dev/sdf:5368 MB, 5368709120 bytes
255 heads, Sectors/track, 652 cylinders
Units = cylinders of 16065 * 8225280 bytes
Sector size (logical/physical): bytes/512 bytes
I/o size (minimum/optimal): BYTES/51 2 bytes
Disk identifier:0x00000000

Disk/dev/sdf doesn ' t contain a valid partition table
[Email protected] ~]# ll/dev/sd*
BRW-RW----. 1 root disk 8, 0 may 09:13/DEV/SDA
BRW-RW----. 1 root disk 8, 1 May 09:13/dev/sda1
BRW-RW----. 1 root disk 8, 2 May 09:13/dev/sda2
BRW-RW----. 1 root disk 8, 3 May 09:13/dev/sda3
BRW-RW----. 1 root disk 8, 4 May 09:13/DEV/SDA4
BRW-RW----. 1 root disk 8, 09:13/dev/sdb
BRW-RW----. 1 root disk 8, may 09:13/DEV/SDB1
BRW-RW----. 1 root disk 8, 09:13/DEV/SDC
BRW-RW----. 1 root disk 8, 09:13/DEV/SDD
BRW-RW----. 1 root disk 8, 09:13/DEV/SDE
BRW-RW----. 1 root disk 8, 09:13/DEV/SDF
[Email protected] ~]#]PVCREATE/DEV/SDC
-bash:]pvcreate:command not found

[Email protected] mnt]# mount/dev/cdrom/mnt/
Mount:block Device/dev/sr0 is write-protected, mounting read-only
[Email protected] mnt]# cd/mnt/
[email protected] mnt]# LL
Total 806
Drwxr-xr-x. 3 root root 2048 EFI
-rw-r--r--. 1 root root 7041 the EULA
-rw-r--r--. 1 root root 7041 may Eula.en_us
-rw-r--r--. 1 root root 3334 may eula.py
-rw-r--r--. 1 root root 18390 the GPL
Drwxr-xr-x. 3 root root 2048 may highavailability
Drwxr-xr-x. 3 root root 2048 may images
Drwxr-xr-x. 2 root root 2048 may Isolinux
Drwxr-xr-x. 3 root root 2048 may LoadBalancer
-rw-r--r--. 1 root root 98 may Media.repo
Drwxr-xr-x. 2 root root 636928 may Packages
-rw-r--r--. 1 root root 2619 may Readme-en
-rw-r--r--. 1 root root 7054 may readme-en.html
-rw-r--r--. 1 root root 17643 may Release-notes-en
-rw-r--r--. 1 root root 20003 may release-notes-en.html
-rw-r--r--. 1 root root 17643 may Release-notes-x86_64-en
-rw-r--r--. 1 root root 20003 may release-notes-x86_64-en.html
-rw-r--r--. 1 root root 17643 may Release-notes-x86-en
-rw-r--r--. 1 root root 20003 may release-notes-x86-en.html
lrwxrwxrwx. 1 root root repodata-Server/repodata
Drwxr-xr-x. 3 root root 2048 may resilientstorage
-rw-r--r--. 1 root root 1011 may Rpm-gpg-key
-rw-r--r--. 1 root root 1011 may rpm-gpg-key-oracle
Drwxr-xr-x. 3 root root 2048 may Scalablefilesystem
Drwxr-xr-x. 4 root root 2048 may Server
-rw-r--r--. 1 root root 108 may Supportinfo
-r--r--r--. 1 root root 6301 may TRANS. TBL
[Email protected] mnt]# CD packages/
[email protected] packages]# Yum install lvm*
[Email protected] packages]# Rpm-qa |grep LVM
Lvm2-libs-2.02.83-3.el6.x86_64
Lvm2-2.02.83-3.el6.x86_64
[[Email protected] packages]# CD
[Email protected] ~]# PVCREATE/DEV/SDC
Physical volume "/DEV/SDC" successfully created
[Email protected] ~]# PVCREATE/DEV/SDD
Physical volume "/DEV/SDD" successfully created
[Email protected] ~]# PVCREATE/DEV/SDE
Physical volume "/DEV/SDE" successfully created
[Email protected] ~]# PVCREATE/DEV/SDF
Physical volume "/DEV/SDF" successfully created
[Email protected] ~]# Lvmdiskscan
/DEV/RAM0 [16.00 MiB]
/DEV/RAM1 [16.00 MiB]
/DEV/SDA1 [200.00 MiB]
/DEV/RAM2 [16.00 MiB]
/dev/sda2 [1.46 GiB]
/DEV/RAM3 [16.00 MiB]
/dev/sda3 [18.34 GiB]
/DEV/RAM4 [16.00 MiB]
/DEV/SDA4 [19.99 GiB]
/DEV/RAM5 [16.00 MiB]
/DEV/RAM6 [16.00 MiB]
/DEV/RAM7 [16.00 MiB]
/DEV/RAM8 [16.00 MiB]
/DEV/RAM9 [16.00 MiB]
/DEV/RAM10 [16.00 MiB]
/DEV/RAM11 [16.00 MiB]
/DEV/RAM12 [16.00 MiB]
/DEV/RAM13 [16.00 MiB]
/DEV/RAM14 [16.00 MiB]
/DEV/RAM15 [16.00 MiB]
/DEV/SDB1 [30.00 GiB]
/DEV/SDC [5.00 GiB] LVM Physical volume
/DEV/SDD [5.00 GiB] LVM Physical volume
/DEV/SDE [5.00 GiB] LVM Physical volume
/DEV/SDF [5.00 GiB] LVM Physical volume
0 disks
Partitions
4 LVM Physical Volume whole disks
0 LVM Physical Volumes
[Email protected] ~]# PVs
PV VG Fmt Attr PSize pfree
/DEV/SDC lvm2 a-5.00g 5.00g
/DEV/SDD lvm2 a-5.00g 5.00g
/DEV/SDE lvm2 a-5.00g 5.00g
/DEV/SDF lvm2 a-5.00g 5.00g
[Email protected] ~]# Pvscan
PV/DEV/SDC lvm2 [5.00 GiB]
PV/DEV/SDD lvm2 [5.00 GiB]
PV/DEV/SDE lvm2 [5.00 GiB]
PV/DEV/SDF lvm2 [5.00 GiB]
Total:4 [20.00 GIB]/in use:0 [0]/In no vg:4 [20.00 GIB]
[Email protected] ~]# Pvdisplay
"/DEV/SDC" is a new physical volume of "5.00 GiB"
---NEW physical volume---
PV NAME/DEV/SDC
VG Name
PV Size 5.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID L9whqw-iiew-6bcm-5ca3-amrn-13ve-fsr1me

"/DEV/SDD" is a new physical volume of "5.00 GiB"
---NEW physical volume---
PV NAME/DEV/SDD
VG Name
PV Size 5.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID Gdu1wp-kxfm-pgvy-dmfk-h72v-tbqs-co57eq

"/dev/sde" is a new physical volume of "5.00 GiB"
---NEW physical volume---
PV NAME/DEV/SDE
VG Name
PV Size 5.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID Ayvcde-ocoy-yyvy-neb9-48dq-ep1e-6yvjku

"/dev/sdf" is a new physical volume of "5.00 GiB"
---NEW physical volume---
PV NAME/DEV/SDF
VG Name
PV Size 5.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID ZERFJH-ZYJZ-QJBS-AWMV-BL03-D0YQ-DAAQBZ

[Email protected] ~]# vgcreate DATAVG/DEV/SDC/DEV/SDD/DEV/SDE/DEV/SDF
Volume Group "Datavg" successfully created
[Email protected] ~]# vgchange-a y datavg
0 Logical Volume (s) in volume group ' datavg ' now active
[Email protected] ~]# Vgscan
Reading all physical volumes. This is a while ...
Found Volume Group "datavg" using metadata type LVM2
[Email protected] ~]# VGS
VG #PV #LV #SN Attr vsize vfree
Datavg 4 0 0 wz--n-19.98g 19.98g
[Email protected] ~]# Vgdiskplay
-bash:vgdiskplay:command not found
[Email protected] ~]# Vgdisplay
---Volume Group---
VG Name Datavg
System ID
Format lvm2
Metadata Areas 4
Metadata Sequence No 1
VG Access Read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 4
ACT PV 4
VG Size 19.98 GiB
PE Size 4.00 MiB
Total PE 5116
Alloc pe/size 0/0
Free Pe/size 5116/19.98 GiB
VG UUID 8ipavp-2hni-qx7q-jcna-8xvz-cpwl-uumeov

[Email protected] ~]# Pvdisplay
---physical volume---
PV NAME/DEV/SDC
VG Name Datavg
PV Size 5.00 Gib/not Usable 4.00 MiB
Allocatable Yes
PE Size 4.00 MiB
Total PE 1279
Free PE 1279
Allocated PE 0
PV UUID L9whqw-iiew-6bcm-5ca3-amrn-13ve-fsr1me

---physical volume---
PV NAME/DEV/SDD
VG Name Datavg
PV Size 5.00 Gib/not Usable 4.00 MiB
Allocatable Yes
PE Size 4.00 MiB
Total PE 1279
Free PE 1279
Allocated PE 0
PV UUID Gdu1wp-kxfm-pgvy-dmfk-h72v-tbqs-co57eq

---physical volume---
PV NAME/DEV/SDE
VG Name Datavg
PV Size 5.00 Gib/not Usable 4.00 MiB
Allocatable Yes
PE Size 4.00 MiB
Total PE 1279
Free PE 1279
Allocated PE 0
PV UUID Ayvcde-ocoy-yyvy-neb9-48dq-ep1e-6yvjku

---physical volume---
PV NAME/DEV/SDF
VG Name Datavg
PV Size 5.00 Gib/not Usable 4.00 MiB
Allocatable Yes
PE Size 4.00 MiB
Total PE 1279
Free PE 1279
Allocated PE 0
PV UUID ZERFJH-ZYJZ-QJBS-AWMV-BL03-D0YQ-DAAQBZ

[Email protected] ~]# Vgdisplay datavg| grep "Total PE"
Total PE 5116
[Email protected] ~]# lvcreate-l 5116 datavg-n Datalv
Logical volume "Datalv" created
[Email protected] ~]# ls-l/dev/datavg/datalv
lrwxrwxrwx. 1 root root 7 11:07/dev/datavg/datalv. /dm-0
[Email protected] ~]# Mkfs.ext4/dev/datavg/datalv
MKE2FS 1.41.12 (17-may-2010)
Filesystem label=
OS Type:linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
1310720 inodes, 5238784 blocks
261939 blocks (5.00%) reserved for the Super user
First Data block=0
Maximum filesystem blocks=4294967296
Block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000

Writing Inode Tables:done
Creating Journal (32768 blocks): Done
Writing superblocks and filesystem accounting Information:done

This filesystem'll be automatically checked every mounts or
Whichever comes first. Use Tune2fs-c or-i to override.
[Email protected] ~]# df-h
Filesystem Size used Avail use% mounted on
/dev/sda3 19G 11G 6.5G 63%/
Tmpfs 995M 238M 758M 24%/DEV/SHM
/DEV/SDA1 194M 46M 139M 25%/boot
/DEV/SDA4 20G 1.4G 18G 7%/rman
/DEV/SDB1 30G 863M 28G 4%/arch1
/dev/sr0 3.4G 3.4G 0 100%/mnt
[Email protected] ~]# Mkdir/data
[Email protected] ~]# Mount/dev/datavg/datalv/data
[Email protected] ~]# df-h
Filesystem Size used Avail use% mounted on
/dev/sda3 19G 11G 6.5G 63%/
Tmpfs 995M 238M 758M 24%/DEV/SHM
/DEV/SDA1 194M 46M 139M 25%/boot
/DEV/SDA4 20G 1.4G 18G 7%/rman
/DEV/SDB1 30G 863M 28G 4%/arch1
/dev/sr0 3.4G 3.4G 0 100%/mnt
/dev/mapper/datavg-datalv
20G 172M 19G 1%/data
[Email protected] ~]# Vi/etc/fstab
#
#/etc/fstab
# Created by Anaconda on Wed 20 23:07:53 2015
#
# Accessible filesystems, by reference, is maintained under '/dev/disk '
# See mans Pages Fstab (5), Findfs (8), mount (8) and/or Blkid (8) for more info
#
UUID=30E46482-1E22-413F-BF77-E47497788434/EXT4 Defaults 1 1
Uuid=3b639602-3e2f-4533-80fc-73688caf0e03/boot EXT4 Defaults 1 2
Uuid=10a04773-55e4-44d4-91cb-0f5aa339be00 swap swap defaults 0 0
TMPFS/DEV/SHM TMPFS Defaults 0 0
Devpts/dev/pts devpts gid=5,mode=620 0 0
Sysfs/sys Sysfs Defaults 0 0
PROC/PROC proc Defaults 0 0
/dev/sda4/rman ext3 defaults 1 1
/dev/sdb1/arch1 ext3 defaults 1 1
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#
#/etc/fstab
# Created by Anaconda on Wed 20 23:07:53 2015
#
# Accessible filesystems, by reference, is maintained under '/dev/disk '
# See mans Pages Fstab (5), Findfs (8), mount (8) and/or Blkid (8) for more info
#
UUID=30E46482-1E22-413F-BF77-E47497788434/EXT4 Defaults 1 1
Uuid=3b639602-3e2f-4533-80fc-73688caf0e03/boot EXT4 Defaults 1 2
Uuid=10a04773-55e4-44d4-91cb-0f5aa339be00 swap swap defaults 0 0
TMPFS/DEV/SHM TMPFS Defaults 0 0
Devpts/dev/pts devpts gid=5,mode=620 0 0
Sysfs/sys Sysfs Defaults 0 0
PROC/PROC proc Defaults 0 0
/dev/sda4/rman ext3 defaults 1 1
"/etc/fstab" 18L, 1033C written
[Email protected] ~]#
[Email protected] ~]#

Linux Volume management