Shulou(Shulou.com)06/01 Report--

LVM partition

1. Division description

The server accesses the storage device using multi-path technology (Linux Device Mapper Multipathing). After the multi-path device is configured, the mpthX multi-path device is discovered in / dev/mapper/, and one of the devices can be divided into a physical volume using lvcreate.

The expanded Hitachi bare storage device has a total of 900G*10 space. After RAID1+0, the actual available storage is about 3T divided into 6 pv (one pv 500G), divided into 6 volume groups-oravg01-06, and one PV under each volume group.

The allocated size of each major data file of Oracle:

Temp:80G undo:60G SAP:819G SMS:999G

BCA_YW:100G BCA_GW:100G APP:200G indx:200G

Note: when partitioning, it is found that after dividing one server into LV, the other server can also recognize the same LV, but the VG is inactive and needs to be activated.

two。 Create PV

Pvcreate / dev/mapper/mpath2

Pvcreate/dev/mapper/mpath3

Pvcreate/dev/mapper/mpath4

Pvcreate/dev/mapper/mpath5

Pvcreate/dev/mapper/mpath6

Pvcreate/dev/mapper/mpath7

View PV properties

[root@rac1 ~] # pvdisplay

"/ dev/mpath/mpath2" is a newphysical volume of "500.00 GB"

-NEW Physical volume

PV Name / dev/mpath/mpath2

VG Name

PV Size 500.00 GB

Allocatable NO

PE Size (KByte) 0

Total PE 0

Free PE 0

Allocated PE 0

PV UUID TtAWwc-5hZF-0ZLt-TVuP-Jn9f-n2FQ-oaLCDh

"/ dev/mpath/mpath3" is a newphysical volume of "500.00 GB"

-NEW Physical volume

PV Name / dev/mpath/mpath3

VG Name

PV Size 500.00 GB

Allocatable NO

PE Size (KByte) 0

Total PE 0

Free PE 0

Allocated PE 0

PV UUID GiUA3r-cHfQ-LF0m-FBQt-K0yK-0jbH-GayMhX

"/ dev/mpath/mpath4" is a newphysical volume of "500.00 GB"

-NEW Physical volume

PV Name / dev/mpath/mpath4

VG Name

PV Size 500.00 GB

Allocatable NO

PE Size (KByte) 0

Total PE 0

Free PE 0

Allocated PE 0

PV UUID HjaH7y-Zoy9-xl1N-m2QU-JeUI-QyzN-ZWutNq

"/ dev/mpath/mpath5" is a newphysical volume of "500.00 GB"

-NEW Physical volume

PV Name / dev/mpath/mpath5

VG Name

PV Size 500.00 GB

Allocatable NO

PE Size (KByte) 0

Total PE 0

Free PE 0

Allocated PE 0

PV UUID zJbntF-iZae-BTn6-fleK-PGKn-jvIr-GHLT0D

"/ dev/mpath/mpath6" is a newphysical volume of "500.00 GB"

-NEW Physical volume

PV Name / dev/mpath/mpath6

VG Name

PV Size 500.00 GB

Allocatable NO

PE Size (KByte) 0

Total PE 0

Free PE 0

Allocated PE 0

PV UUID KAt3j4-NnAP-C018-BUM1-Xfhv-UYY6-Zdy3PD

"/ dev/mpath/mpath7" is a newphysical volume of "500.00 GB"

-NEW Physical volume

PV Name / dev/mpath/mpath7

VG Name

PV Size 500.00 GB

Allocatable NO

PE Size (KByte) 0

Total PE 0

Free PE 0

Allocated PE 0

PV UUID q1I884-vCgj-EMb8-FwI3-1Oqn-CuGo-wjF7nW

3. Create VG

Create 6 VG, one PV under each VG, default PE=4M, one VG 500G

[root@rac1 ~] # vgcreate oravg01 / dev/mpath/mpath2

Volume group "oravg01" successfully created

[root@rac1 ~] # vgcreate oravg02 / dev/mpath/mpath3

Volume group "oravg02" successfully created

[root@rac1 ~] # vgcreate oravg03 / dev/mpath/mpath4

Volume group "oravg03" successfully created

[root@rac1 ~] # vgcreate oravg04 / dev/mpath/mpath5

Volume group "oravg04" successfully created

[root@rac1 ~] # vgcreate oravg05 / dev/mpath/mpath6

Volume group "oravg05" successfully created

[root@rac1 ~] # vgcreate oravg06 / dev/mpath/mpath7

Volume group "oravg06" successfully created

View VG

[root@rac1 ~] # vgdisplay

-Volume group

VG Name oravg06

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 500.00 GB

PE Size 4.00 MB

Total PE 127999

Alloc PE / Size 0 / 0

Free PE / Size 127999 / 500.00 GB

VG UUID wevGwC-kmhe-3ho9-4CRk-GVnt-hOvE-2qq93g

-Volume group

VG Name oravg05

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 500.00 GB

PE Size 4.00 MB

Total PE 127999

Alloc PE / Size 0 / 0

Free PE / Size 127999 / 500.00 GB

VG UUID P6pEjs-SHzZ-Rxql-XIwR-uOff-euw5-kPJpQg

-Volume group

VG Name oravg04

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 500.00 GB

PE Size 4.00 MB

Total PE 127999

Alloc PE / Size 0 / 0

Free PE / Size 127999 / 500.00 GB

VG UUID K9yT9I-21Wg-48Ye-k1TY-ge3F-354N-EGYuPc

-Volume group

VG Name oravg03

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 500.00 GB

PE Size 4.00 MB

Total PE 127999

Alloc PE / Size 0 / 0

Free PE / Size 127999 / 500.00 GB

VG UUID B4Nmcz-CEQK-yIL7-tn9j-SB03-e0GU-WUSlic

-Volume group

VG Name oravg02

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 500.00 GB

PE Size 4.00 MB

Total PE 127999

Alloc PE / Size 0 / 0

Free PE / Size 127999 / 500.00 GB

VG UUID 3ydc98-DgkI-P8F5-HlGd-B2xO-mX0o-eE3zsn

-Volume group

VG Name oravg01

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 500.00 GB

PE Size 4.00 MB

Total PE 127999

Alloc PE / Size 0 / 0

Free PE / Size 127999 / 500.00 GB

VG UUID Ei6ZDe-29bP-XARY-qpCe-Qsve-y9Py-YtaKUw

4. Create LV

Note: when creating the lv size here, it is best to allocate it larger than the pre-designed one.

Create a LV in turn (omit)

[root@rac1] # lvcreate-L 512m oravg01

Logical volume "lvol0" created

Scan for LV that exists in the system

[root@rac1 ~] # lvscan

ACTIVE'/ dev/oravg01/lvol0' [512.00 MB] inherit

View VG properties

[root@rac1] # vgdisplay-P oravg01

Partial mode. Incomplete logical volumes will be processed.

-Volume group

VGName oravg01

System ID

Format lvm2

Metadata Areas 1

Metadata Sequence No 39

VGAccess read/write

VGStatus resizable

MAXLV 0

CurLV 38

Open LV 0

MaxPV 0

CurPV 1

ActPV 1

VGSize 500.00 GB

PESize 4.00 MB

Total PE 127999

AllocPE / Size 121216 / 473.50 GB

Free PE / Size 6783 / 26.50 GB

VGUUID Ei6ZDe-29bP-XARY-qpCe-Qsve-y9Py-YtaKUw

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