【Linux】将Oracle安装目录从根目录下迁移到逻辑卷
各位技术爱好者，看完本文后，你可以掌握如下的技能，也可以学到一些其它你所不知道的知识，~O(∩_∩)O~：
① Linux逻辑卷的创建和管理（重点）
由于Oracle版本太多，鉴于学习使用，所以，小麦苗在RHEL6.5上安装了Oracle 11.2.0.3、Oracle 10.2.0.1和Oracle 10.2.0.4。但是由于没有采用逻辑卷的管理方式，现在根目录磁盘空间不足，而且也添加了好几块硬盘了，管理非常不方便。以后等Oracle 12cR2出来后还得安装在一起，想了想还是一次性将这些Oracle的安装目录都迁移到逻辑卷中，以后也好管理。本文记录了迁移过程，以备有同样需求的朋友使用。
最后操作的结果就是把磁盘2、3、4和5去掉，只剩下1块或2块磁盘。
[root@rhel6_lhr ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 48G 43G 3.0G 94% /
tmpfs 2.0G 432M 1.6G 22% /dev/shm
/dev/sda1 283M 58M 210M 22% /boot
/dev/mapper/testvg-testlv 380M 321M 40M 90% /var/lib/mysql
/dev/sdc1 9.9G 4.0G 5.5G 43% /u03
/dev/sde1 20G 7.3G 12G 39% /u04
/dev/sdf1 50G 30G 18G 63% /u05
[root@rhel6_lhr ~]# fdisk -l |grep dev
Disk /dev/sda: 107.4 GB, 107374182400 bytes
/dev/sda1 * 1 39 307200 83 Linux
/dev/sda2 39 6401 51104768 83 Linux
/dev/sda3 6401 6528 1015808 82 Linux swap / Solaris
/dev/sda4 6528 13054 52427455 5 Extended
Disk /dev/sdc: 10.7 GB, 10737418240 bytes
/dev/sdc1 1 1305 10482381 83 Linux
Disk /dev/sdd: 5368 MB, 5368709120 bytes
Disk /dev/sdf: 53.7 GB, 53687091200 bytes
/dev/sdf1 1 6527 52428096 83 Linux
Disk /dev/sdg: 21.5 GB, 21474836480 bytes
Disk /dev/sde: 21.5 GB, 21474836480 bytes
/dev/sde1 1 2610 20964793+ 83 Linux
Disk /dev/mapper/testvg-testlv: 419 MB, 419430400 bytes
[root@rhel6_lhr ~]#
[root@rhel6_lhr ~]# fdisk /dev/sda
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): p
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000bd0a0
Device Boot Start End Blocks Id System
Partition 1 does not end on cylinder boundary.
Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): l
0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 39 Plan 9 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIX root 3c PartitionMagic 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 40 Venix 80286 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
4 FAT16 <32M 41 PPC PReP Boot 85 Linux extended c7 Syrinx
5 Extended 42 SFS 86 NTFS volume set da Non-FS data
6 FAT16 4d QNX4.x 87 NTFS volume set db CP/M / CTOS / .
7 HPFS/NTFS 4e QNX4.x 2nd part 88 Linux plaintext de Dell Utility
8 AIX 4f QNX4.x 3rd part 8e Linux LVM df BootIt
9 AIX bootable 50 OnTrack DM 93 Amoeba e1 DOS access
a OS/2 Boot Manag 51 OnTrack DM6 Aux 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 52 CP/M 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 53 OnTrack DM6 Aux a0 IBM Thinkpad hi eb BeOS fs
e W95 FAT16 (LBA) 54 OnTrackDM6 a5 FreeBSD ee GPT
f W95 Ext'd (LBA) 55 EZ-Drive a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 56 Golden Bow a7 NeXTSTEP f0 Linux/PA-RISC b
11 Hidden FAT12 5c Priam Edisk a8 Darwin UFS f1 SpeedStor
12 Compaq diagnost 61 SpeedStor a9 NetBSD f4 SpeedStor
14 Hidden FAT16 <3 63 GNU HURD or Sys ab Darwin boot f2 DOS secondary
16 Hidden FAT16 64 Novell Netware af HFS / HFS+ fb VMware VMFS
17 Hidden HPFS/NTF 65 Novell Netware b7 BSDI fs fc VMware VMKCORE
18 AST SmartSleep 70 DiskSecure Mult b8 BSDI swap fd Linux raid auto
1b Hidden W95 FAT3 75 PC/IX bb Boot Wizard hid fe LANstep
1c Hidden W95 FAT3 80 Old Minix be Solaris boot ff BBT
1e Hidden W95 FAT1
Command (m for help): n
e extended
p primary partition (1-4)
p
Selected partition 4
First cylinder (6528-13054, default 6528):
Using default value 6528
Last cylinder, +cylinders or +size{K,M,G} (6528-13054, default 13054):
Using default value 13054
Command (m for help): t
Partition number (1-4): 4
Hex code (type L to list codes): 8e
Changed system type of partition 4 to 8e (Linux LVM)
/dev/sda4 6528 13054 52427455 8e Linux LVM
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
[root@rhel6_lhr ~]# partprobe
Warning: WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
Warning: WARNING: the kernel failed to re-read the partition table on /dev/sdc (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
Warning: WARNING: the kernel failed to re-read the partition table on /dev/sde (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
Warning: WARNING: the kernel failed to re-read the partition table on /dev/sdf (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
[root@rhel6_lhr ~]# pvcreate /dev/sda4
dev_is_mpath: failed to get device for 8:4
Device /dev/sda4 not found (or ignored by filtering).
[root@rhel6_lhr ~]# fdisk -l /dev/sda
[root@rhel6_lhr ~]# pvcreate /dev/sda4
[root@rhel6_lhr ~]# l /dev/sda4
brw-rw---- 1 root disk 8, 4 Dec 26 09:51 /dev/sda4
[root@rhel6_lhr ~]# reboot
Broadcast message from root@rhel6_lhr
(/dev/pts/1) at 10:12 ...
The system is going down for reboot NOW!
Last login: Mon Dec 26 10:06:09 2016 from 192.168.59.1
tmpfs 2.0G 0 2.0G 0% /dev/shm
Physical volume "/dev/sda4" successfully created
[root@rhel6_lhr ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda4 lvm2 a-- 50.00g 50.00g
[root@rhel6_lhr ~]# pvs
[root@rhel6_lhr ~]# pvdisplay
"/dev/sda4" is a new physical volume of "50.00 GiB"
--- NEW Physical volume ---
PV Name /dev/sda4
VG Name
PV Size 50.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID NgZ5Vl-Jbkn-9U71-9Ypp-i2nH-HhlT-cSPQ3o
[root@rhel6_lhr ~]# vgcreate vg_orasoft /dev/sda4
Volume group "vg_orasoft" successfully created
[root@rhel6_lhr ~]# vgdisplay
--- Volume group ---
VG Name vg_orasoft
System ID
Format lvm2
Metadata Areas 1
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 1
Act PV 1
VG Size 50.00 GiB
PE Size 4.00 MiB
Total PE 12799
Alloc PE / Size 0 / 0
Free PE / Size 12799 / 50.00 GiB
VG UUID PyRYUt-ERDU-NU4o-NWHA-anpD-iTIA-aMGLnV
[root@rhel6_lhr ~]# vgs
VG #PV #LV #SN Attr VSize VFree
vg_orasoft 1 0 0 wz--n- 50.00g 50.00g
PV VG Fmt Attr PSize PFree
/dev/sda4 vg_orasoft lvm2 a-- 50.00g 50.00g
[root@rhel6_lhr ~]# pvdisplay
--- Physical volume ---
PV Size 50.00 GiB / not usable 2.69 MiB
Allocatable yes
Free PE 12799
[root@rhel6_lhr ~]# lvcreate -n lv_ora_soft_u01 -L 35G vg_orasoft
Logical volume "lv_ora_soft_u01" created
[root@rhel6_lhr ~]# lvdisplay
--- Logical volume ---
LV Path /dev/vg_orasoft/lv_ora_soft_u01
LV Name lv_ora_soft_u01
VG Name vg_orasoft
LV UUID FYWeeZ-DMxB-MKBo-Lpeb-kVEz-yCFY-M2Ddmr
LV Write Access read/write
LV Creation host, time rhel6_lhr, 2016-12-26 11:06:03 +0800
LV Status available
# open 0
LV Size 35.00 GiB
Current LE 8960
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
[root@rhel6_lhr ~]# lvs
LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert
lv_ora_soft_u01 vg_orasoft -wi-a----- 35.00g
vg_orasoft 1 1 0 wz--n- 50.00g 15.00g
/dev/sda4 vg_orasoft lvm2 a-- 50.00g 15.00g
[root@rhel6_lhr ~]# mkfs.ext4 /dev/vg_orasoft/lv_ora_soft_u01
mke2fs 1.43-WIP (20-Jun-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
2293760 inodes, 9175040 blocks
458752 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
280 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, 7962624
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
[root@rhel6_lhr ~]# ps -ef|grep ora
grid 3087 1 0 10:18 ? 00:00:27 /u01/app/grid/11.2.0/bin/oraagent.bin
。。。。。。。。。。。。。。。。。。。。。。。。。。。
oracle 6197 1 0 11:04 ? 00:00:00 ora_w000_orclasm
oracle 6283 1 0 11:05 ? 00:00:00 ora_w001_orclasm
root 6361 2323 0 11:07 pts/1 00:00:00 grep ora
[root@rhel6_lhr ~]# crsctl stop has -f
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rhel6_lhr'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'rhel6_lhr'
CRS-2673: Attempting to stop 'ora.orclasm.db' on 'rhel6_lhr'
。。。。。。。。。。。。。。。。。
CRS-4133: Oracle High Availability Services has been stopped.
[root@rhel6_lhr ~]# ps -ef|grep ora
root 6420 2323 0 11:07 pts/1 00:00:00 grep ora
[root@rhel6_lhr ~]# ps -ef|grep d.bin
root 6425 2323 0 11:07 pts/1 00:00:00 grep d.bin
本文转自lhrbest 51CTO博客，原文链接：http://blog.51cto.com/lhrbest/1886685，如需转载请自行联系原作者