0.实验环境图
1.在节点servera上，进行磁盘分区，创建物理卷，创建卷组，创建逻辑卷（使用瘦池，后面可以使用快照，预分配虚拟空间），格式化逻辑卷，创建挂载目录，编辑挂载配置文件，进行挂载，查看文件系统。
[root@servera ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x3e6cf982.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 1):
First sector (2048-41943039, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): +10G
Partition 1 of type Linux and of size 10 GiB is set
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p):
Using default response p
Partition number (2-4, default 2):
First sector (20973568-41943039, default 20973568):
Using default value 20973568
Last sector, +sectors or +size{K,M,G} (20973568-41943039, default 41943039):
Using default value 41943039
Partition 2 of type Linux and of size 10 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@servera ~]# pvcreate /dev/vdb2
Physical volume "/dev/vdb2" successfully created
[root@servera ~]# vgcreate vg /dev/vdb2
Volume group "vg" successfully created
[root@servera ~]# lvcreate -l 100%FREE -T vg/thinpool
Logical volume "thinpool" created.
[root@servera ~]# lvcreate -V 2G -T vg/thinpool -n test
Logical volume "test" created.
[root@servera ~]# lvcreate -V 2G -T vg/thinpool -n prod
Logical volume "prod" created.
[root@servera ~]# mkfs.xfs -i size=512 /dev/vg/test
meta-data=/dev/vg/test isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@servera ~]# mkfs.xfs -i size=512 /dev/vg/prod
meta-data=/dev/vg/prod isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@servera ~]# mkdir -p /bricks/test
[root@servera ~]# mkdir -p /bricks/prod
[root@servera ~]# echo "/dev/vg/test /bricks/test xfs defaults 0 0" >> /etc/fstab
[root@servera ~]# echo "/dev/vg/prod /bricks/prod xfs defaults 0 0" >> /etc/fstab
[root@servera ~]# mount -a
[root@servera ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/vda1 xfs 10G 1.6G 8.5G 16% /
devtmpfs devtmpfs 902M 0 902M 0% /dev
tmpfs tmpfs 920M 0 920M 0% /dev/shm
tmpfs tmpfs 920M 51M 870M 6% /run
tmpfs tmpfs 920M 0 920M 0% /sys/fs/cgroup
tmpfs tmpfs 184M 0 184M 0% /run/user/0
/dev/mapper/vg-test xfs 2.0G 33M 2.0G 2% /bricks/test
/dev/mapper/vg-prod xfs 2.0G 33M 2.0G 2% /bricks/prod
2.在节点serverb上，进行磁盘分区，创建物理卷，创建卷组，创建逻辑卷（使用瘦池，后面可以使用快照，预分配虚拟空间），格式化逻辑卷，创建挂载目录，编辑挂载配置文件，进行挂载，查看文件系统。
[root@serverb ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x2ebbac5f.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 1):
First sector (2048-41943039, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): +10G
Partition 1 of type Linux and of size 10 GiB is set
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p):
Using default response p
Partition number (2-4, default 2):
First sector (20973568-41943039, default 20973568):
Using default value 20973568
Last sector, +sectors or +size{K,M,G} (20973568-41943039, default 41943039):
Using default value 41943039
Partition 2 of type Linux and of size 10 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@serverb ~]# pvcreate /dev/vdb2
Physical volume "/dev/vdb2" successfully created
[root@serverb ~]# vgcreate vg /dev/vdb2
Volume group "vg" successfully created
[root@serverb ~]# lvcreate -l 100%FREE -T vg/thinpool
Logical volume "thinpool" created.
[root@serverb ~]# lvcreate -V 2G -T vg/thinpool -n test
Logical volume "test" created.
[root@serverb ~]# lvcreate -V 2G -T vg/thinpool -n prod
Logical volume "prod" created.
[root@serverb ~]# mkfs.xfs -i size=512 /dev/vg/test
meta-data=/dev/vg/test isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverb ~]# mkfs.xfs -i size=512 /dev/vg/prod
meta-data=/dev/vg/prod isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverb ~]# mkdir -p /bricks/test
[root@serverb ~]# mkdir -p /bricks/prod
[root@serverb ~]# echo "/dev/vg/test /bricks/test xfs defaults 0 0" >> /etc/fstab
[root@serverb ~]# echo "/dev/vg/prod /bricks/prod xfs defaults 0 0" >> /etc/fstab
[root@serverb ~]# mount -a
[root@serverb ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/vda1 xfs 10G 1.6G 8.5G 16% /
devtmpfs devtmpfs 902M 0 902M 0% /dev
tmpfs tmpfs 920M 0 920M 0% /dev/shm
tmpfs tmpfs 920M 51M 870M 6% /run
tmpfs tmpfs 920M 0 920M 0% /sys/fs/cgroup
tmpfs tmpfs 184M 0 184M 0% /run/user/0
/dev/mapper/vg-test xfs 2.0G 33M 2.0G 2% /bricks/test
/dev/mapper/vg-prod xfs 2.0G 33M 2.0G 2% /bricks/prod
3.在节点serverc上，进行磁盘分区，创建物理卷，创建卷组，创建逻辑卷（使用瘦池，后面可以使用快照，预分配虚拟空间），格式化逻辑卷，创建挂载目录，编辑挂载配置文件，进行挂载，查看文件系统。
[root@serverc ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x25ec0516.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 1):
First sector (2048-41943039, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): +10G
Partition 1 of type Linux and of size 10 GiB is set
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p):
Using default response p
Partition number (2-4, default 2):
First sector (20973568-41943039, default 20973568):
Using default value 20973568
Last sector, +sectors or +size{K,M,G} (20973568-41943039, default 41943039):
Using default value 41943039
Partition 2 of type Linux and of size 10 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@serverc ~]# pvcreate /dev/vdb2
Physical volume "/dev/vdb2" successfully created
[root@serverc ~]# vgcreate vg /dev/vdb2
Volume group "vg" successfully created
[root@serverc ~]# lvcreate -l 100%FREE -T vg/thinpool
Logical volume "thinpool" created.
[root@serverc ~]# lvcreate -V 2G -T vg/thinpool -n sec
Logical volume "sec" created.
[root@serverc ~]# lvcreate -V 2G -T vg/thinpool -n prod
Logical volume "prod" created.
[root@serverc ~]# mkfs.xfs -i size=512 /dev/vg/sec
meta-data=/dev/vg/sec isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverc ~]# mkfs.xfs -i size=512 /dev/vg/prod
meta-data=/dev/vg/prod isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverc ~]# mkdir -p /bricks/sec
[root@serverc ~]# mkdir -p /bricks/prod
[root@serverc ~]# echo "/dev/vg/sec /bricks/sec xfs defaults 0 0" >> /etc/fstab
[root@serverc ~]# echo "/dev/vg/prod /bricks/prod xfs defaults 0 0" >> /etc/fstab
[root@serverc ~]# mount -a
[root@serverc ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/vda1 xfs 10G 1.6G 8.5G 16% /
devtmpfs devtmpfs 902M 0 902M 0% /dev
tmpfs tmpfs 920M 0 920M 0% /dev/shm
tmpfs tmpfs 920M 51M 870M 6% /run
tmpfs tmpfs 920M 0 920M 0% /sys/fs/cgroup
tmpfs tmpfs 184M 0 184M 0% /run/user/0
/dev/mapper/vg-sec xfs 2.0G 33M 2.0G 2% /bricks/sec
/dev/mapper/vg-prod xfs 2.0G 33M 2.0G 2% /bricks/prod
4.在节点serverd上，进行磁盘分区，创建物理卷，创建卷组，创建逻辑卷（使用瘦池，后面可以使用快照，预分配虚拟空间），格式化逻辑卷，创建挂载目录，编辑挂载配置文件，进行挂载，查看文件系统。
[root@serverd ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x30f8f2b7.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 1):
First sector (2048-41943039, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): +10G
Partition 1 of type Linux and of size 10 GiB is set
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p):
Using default response p
Partition number (2-4, default 2):
First sector (20973568-41943039, default 20973568):
Using default value 20973568
Last sector, +sectors or +size{K,M,G} (20973568-41943039, default 41943039):
Using default value 41943039
Partition 2 of type Linux and of size 10 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@serverd ~]# pvcreate /dev/vdb2
Physical volume "/dev/vdb2" successfully created
[root@serverd ~]# vgcreate vg /dev/vdb2
Volume group "vg" successfully created
[root@serverd ~]# lvcreate -l 100%FREE -T vg/thinpool
Logical volume "thinpool" created.
[root@serverd ~]# lvcreate -V 2G -T vg/thinpool -n sec
Logical volume "sec" created.
[root@serverd ~]# lvcreate -V 2G -T vg/thinpool -n prod
Logical volume "prod" created.
[root@serverd ~]# mkfs.xfs -i size=512 /dev/vg/sec
meta-data=/dev/vg/sec isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverd ~]# mkfs.xfs -i size=512 /dev/vg/prod
meta-data=/dev/vg/prod isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverd ~]# mkdir -p /bricks/sec
[root@serverd ~]# mkdir -p /bricks/prod
[root@serverd ~]# echo "/dev/vg/sec /bricks/sec xfs defaults 0 0" >> /etc/fstab
[root@serverd ~]# echo "/dev/vg/prod /bricks/prod xfs defaults 0 0" >> /etc/fstab
[root@serverd ~]# mount -a
[root@serverd ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/vda1 xfs 10G 1.6G 8.5G 16% /
devtmpfs devtmpfs 902M 0 902M 0% /dev
tmpfs tmpfs 920M 0 920M 0% /dev/shm
tmpfs tmpfs 920M 51M 870M 6% /run
tmpfs tmpfs 920M 0 920M 0% /sys/fs/cgroup
tmpfs tmpfs 184M 0 184M 0% /run/user/0
/dev/mapper/vg-sec xfs 2.0G 33M 2.0G 2% /bricks/sec
/dev/mapper/vg-prod xfs 2.0G 33M 2.0G 2% /bricks/prod