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[Linux] migrate the Oracle installation directory from the root to the logical volume

1.1 BLOG document structure map

1.2Preface 1.2.1 introduction and precautions for technical enthusiasts, after reading this article, you can master the following skills, and you can also learn some other knowledge that you do not know, ~ O (∩ _ ∩) obsession:

Creation and management of ① Linux logical volumes (focus)

1.2.2 related article links to linux logical Volume Management: http://blog.itpub.net/26736162/viewspace-2124620/, this article is very good.

1.2.3 because there are too many versions of Oracle, in order to learn to use, wheat seedlings installed Oracle 11.2.0.3, Oracle 10.2.0.1 and Oracle 10.2.0.4 on RHEL6.5. However, due to the lack of logical volume management, there is not enough disk space in the root directory, and several hard disks have been added, which is very inconvenient to manage. In the future, after Oracle 12cR2 comes out, we still have to install it together. I think it is better to migrate these Oracle installation directories to logical volumes at once, so that we can manage them later. This article documents the migration process for friends with the same needs.

1.3 Migration process 1.3.1 disk status

The result of the final operation is to remove disks 2, 3, 4, and 5, leaving only one or two disks.

1.3.2 Partition and create the physical volume [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

Disk / dev/sda: 107.4 GB, 107374182400 bytes

255 heads, 63 sectors/track, 13054 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x000bd0a0

Device Boot Start End Blocks Id System

/ dev/sda1 * 1 39 307200 83 Linux

Partition 1 does not end on cylinder boundary.

/ dev/sda2 39 6401 51104768 83 Linux

/ dev/sda3 6401 6528 1015808 82 Linux swap / Solaris

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

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