新磁盘如何做LVM

二、建立PV（物理卷）

[root@localhost ~]# pvcreate /dev/sdb1 /dev/sdb2 /dev/sdb3

/dev/cdrom: open failed: Read-only file system

Physical volume "/dev/sdb1" successfully created

Attempt to close device '/dev/cdrom' which is not open.

Physical volume "/dev/sdb3" successfully created

[root@localhost ~]# pvdisplay  ###展示物理卷

"/dev/sdb1" is a new physical volume of "9.32 GB"

--- NEW Physical volume ---

PV Name               /dev/sdb1

VG Name              

PV Size               9.32 GB

……此处省略……部分显示结果

PV Size               21.35 GB

Allocatable           NO

…………

PV UUID               rdfuEk-FUli-Iyks-sGrO-1bco-G7ND-NYyrjM

三、建立VG卷组

[root@localhost ~]# vgcreate vg1 /dev/sdb1 /dev/sdb2 /dev/sdb3    ####建立名称为vg1的卷组

Volume group "vg1" successfully created

[root@localhost ~]# vgdisplay   ###列出卷组

--- Volume group ---

VG Name               vg1

System ID            

Format                lvm2

Metadata Areas        3

Metadata Sequence No  1

VG Access             read/write

………………………………

Free  PE / Size       10237 / 39.99 GB

VG UUID               sgtFaV-Hd31-dCag-jPbq-50Ia-WOQa-Ccwo3x

更多精彩内容：http://www.bianceng.cn/OS/Linux/

四、建立LV逻辑卷

[root@localhost ~]# lvcreate -L 15000M -n lv1 vg1   ###创建名为lv1，大小为15G的逻辑卷

/dev/cdrom: open failed: Read-only file system

Logical volume "lv1" created

[root@localhost ~]# lvdisplay    ###展示逻辑卷

--- Logical volume ---

LV Name                /dev/vg1/lv1

VG Name                vg1

LV UUID                fPAVct-8lZ2-Nvs6-KK2n-IMqo-1enG-hHt2tN

LV Write Access        read/write

LV Status              available

# open                 0

LV Size                14.65 GB

Current LE             3750

Segments               1

Allocation             inherit

Read ahead sectors     auto

- currently set to     256

Block device           253:0

（编辑：佛山站长网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!