raid10，lvm，quota组合项目

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马强No1 2013-01-04 23:21:15 ©著作权

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添加四块硬盘，并设置分区：

[root@localhost ~]# fdisk /dev/sdb
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1305, default 1): 1
Last cylinder or +size or +sizeM or +sizeK (1-1305, default 1305):
Using default value 1305

Command (m for help): w

[root@localhost ~]# partprobe
[root@localhost ~]# fdisk -l

Disk /dev/sda: 53.6 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 6527 52323705 8e Linux LVM

Disk /dev/sdb: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 1 1305 10482381 83 Linux

Disk /dev/sdc: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdc1 1 1305 10482381 83 Linux

Disk /dev/sdd: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdd1 1 1305 10482381 83 Linux

Disk /dev/sde: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sde1 1 1305 10482381 83 Linux
[root@localhost ~]#
创建raid10
[root@localhost ~]# mdadm --create --auto=yes /dev/md10 --level=10 --raid-devices=4 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
mdadm: array /dev/md10 started.
[root@localhost ~]#

设置自动加载：
[root@localhost ~]# mdadm --detail /dev/md10

UUID : 7f69985d:9b421c68:81720cb7:5e9d83f1

[root@localhost ~]# vim /dev/mdadm.conf

ARRAY /dev/md10 UUID=7f69985d:9b421c68:81720cb7:5e9d83f1
[root@localhost ~]# vim /etc/fstab
/dev/md10 /mnt/raid10 ext3 defaults 0 0

创建pv
[root@localhost ~]# pvcreate /dev/md10
Physical volume "/dev/md10" successfully created
[root@localhost ~]# pvscan
PV /dev/sda2 VG VolGroup00 lvm2 [59.88 GB / 0 free]
PV /dev/md10 lvm2 [19.99 GB]
Total: 2 [79.87 GB] / in use: 1 [59.88 GB] / in no VG: 1 [19.99 GB]
[root@localhost ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name VolGroup00
PV Size 59.90 GB / not usable 22.10 MB
Allocatable yes (but full)
PE Size (KByte) 32768
Total PE 1916
Free PE 0
Allocated PE 1916
PV UUID E27Joj-Dxph-p2af-RiLb-ZIzC-CjIT-BjqROE

"/dev/md10" is a new physical volume of "19.99 GB"
--- NEW Physical volume ---
PV Name /dev/md10
VG Name
PV Size 19.99 GB
Allocatable NO
PE Size (KByte) 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID nbJfDj-t3ak-L6B2-Gazj-jtnF-vWEN-8V0f3k

创建vg
[root@localhost ~]# vgcreate -s 16m vfastvg /dev/md10
/dev/cdrom: open failed: 只读文件系统
/dev/cdrom: open failed: 只读文件系统
Attempt to close device '/dev/cdrom' which is not open.
/dev/cdrom: open failed: 只读文件系统
Attempt to close device '/dev/cdrom' which is not open.
/dev/cdrom: open failed: 只读文件系统
Attempt to close device '/dev/cdrom' which is not open.
Volume group "vfastvg" successfully created
[root@localhost ~]#

[root@localhost ~]# vgscan
[root@localhost ~]# pvscan
[root@localhost ~]# pvdisplay /dev/md10
--- Physical volume ---
PV Name /dev/md10
VG Name vfastvg
PV Size 19.99 GB / not usable 9.25 MB
Allocatable yes
PE Size (KByte) 16384
Total PE 1279
Free PE 1279
Allocated PE 0
PV UUID nbJfDj-t3ak-L6B2-Gazj-jtnF-vWEN-8V0f3k

[root@localhost ~]#

建立lv
[root@localhost ~]# lvcreate -l 200 -n vfastlv vfastvg
/dev/cdrom: open failed: 只读文件系统
Logical volume "vfastlv" created
[root@localhost ~]#
[root@localhost ~]# lvdisplay /dev/vfastvg/vfastlv
--- Logical volume ---
LV Name /dev/vfastvg/vfastlv
VG Name vfastvg
LV UUID oGw2O6-c25i-bgK1-chkR-fE3N-MfPn-FwgsVB
LV Write Access read/write
LV Status available
# open 0
LV Size 3.12 GB
Current LE 200
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 512
Block device 253:2

[root@localhost ~]#

查看权限：[root@localhost ~]# ll /dev/vfastvg/vfastlv
lrwxrwxrwx 1 root root 27 01-04 17:48 /dev/vfastvg/vfastlv -> /dev/mapper/vfastvg-vfastlv
[root@localhost ~]#

格式化lv：
[root@localhost ~]# mkfs.ext3 /dev/vfastvg/vfastlv

放大lv：

[root@localhost ~]# lvresize -l +100 /dev/vfastvg/vfastlv
/dev/cdrom: open failed: 只读文件系统
Extending logical volume vfastlv to 4.69 GB
Logical volume vfastlv successfully resized
[root@localhost ~]# lvdisplay /dev/vfastvg/vfastlv

[root@localhost ~]# resize2fs /dev/vfastvg/vfastlv

快照：
[root@localhost ~]# lvcreate -l 100 -s -n vfastlvs /dev/vfastvg/vfastlv
/dev/cdrom: open failed: 只读文件系统
Logical volume "vfastlvs" created
[root@localhost ~]# lvdisplay /dev/vfastvg/vfastlvs
[root@localhost ~]# resize2fs /dev/vfastvg/vfastlv
[root@localhost ~]# lvcreate -l 100 -s -n vfastlvs /dev/vfastvg/vfastlv
/dev/cdrom: open failed: 只读文件系统
Logical volume "vfastlvs" created
[root@localhost ~]# lvdisplay /dev/vfastvg/vfastlvs[root@localhost ~]# mkdir -pv /mnt/snapshot
[root@localhost ~]# mount /dev/vfastvg/vfastlvs /mnt/snapshot
[root@localhost ~]#
[root@localhost ~]# cd /mnt/snapshot/
[root@localhost snapshot]#
[root@localhost snapshot]# ls
lost+found
[root@localhost snapshot]# cd /etc/
[root@localhost etc]#
[root@localhost etc]# cat fstab

磁盘配额：

创建用户：
[root@localhost ~]# vim useradd.sh

#!/bin/bash
groupadd wu
for username in w1 w2
do
useradd -g wu $username
echo "123456" |passwd --stdin $username
done

[root@localhost ~]# sh useradd.sh
Changing password for user w1.
passwd: all authentication tokens updated successfully.
Changing password for user w2.
passwd: all authentication tokens updated successfully.
[root@localhost ~]#

创建目录并挂载：[root@localhost ~]# mkdir /mnt/vfastlv
[root@localhost ~]#
[root@localhost ~]# mount /dev/vfastvg/vfastlv /mnt/vfastlv
[root@localhost ~]#
[root@localhost ~]# cd /mnt/vfastlv

[root@localhost vfastlv]# mount -o remount,usrquota,grpquota /mnt/vfastlv

开启加载配额功能：
[root@localhost vfastlv]# vim /etc/fstab
/dev/vfastvg/vfastlv /mnt/vfastlv ext3 defaults,usrquota,grpquota 0 0
[root@localhost vfastlv]# unmount /mnt/vfastlv
[root@localhost vfastlv]# vim /etc/fstab
[root@localhost vfastlv]#
[root@localhost vfastlv]# mount -o
[root@localhost vfastlv]# mount
/dev/mapper/vfastvg-vfastlv on /mnt/vfastlv type ext3 (rw,usrquota,grpquota)
[root@localhost vfastlv]# ls
lost+found
[root@localhost vfastlv]# quotacheck -avug
[root@localhost vfastlv]# ls
aquota.group aquota.user lost+found

编辑配额
[root@localhost vfastlv]# edquota -u w1

Disk quotas for user w1 (uid 510):
Filesystem blocks soft hard inodes soft hard
/dev/mapper/vfastvg-vfastlv 0 20000 30000 0 0 0
~
[root@localhost vfastlv]# edquota -p w1 -u w2
[root@localhost vfastlv]# edquota -g wu
Disk quotas for group wu (gid 501):
Filesystem blocks soft hard inodes soft hard
/dev/mapper/vfastvg-vfastlv 0 40000 60000 0 0 0
~
[root@localhost vfastlv]# edquota -t
Grace period before enforcing soft limits for users:
Time units may be: days, hours, minutes, or seconds
Filesystem Block grace period Inode grace period
/dev/mapper/vfastvg-vfastlv 14days 7days

磁盘配额报告：
[root@localhost vfastlv]# repquota -auvs
*** Report for user quotas on device /dev/mapper/vfastvg-vfastlv
Block grace time: 14days; Inode grace time: 7days
Block limits File limits
User used soft hard grace used soft hard grace
----------------------------------------------------------------------
root -- 72000 0 0 4 0 0
w1 -- 0 20000 30000 0 0 0
w2 -- 0 20000 30000 0 0 0

Statistics:
Total blocks: 7
Data blocks: 1
Entries: 3
Used average: 3.000000

测试：

[root@localhost vfastlv]# chmod o+w /mnt/vfastlv
[root@localhost vfastlv]#
[root@localhost vfastlv]# su - w1
[w1@localhost ~]$ cd /mnt/vfastlv
[w1@localhost vfastlv]$
[w1@localhost vfastlv]$ dd if=/dev/zero of=w1 bs=1M count=18
18+0 records in
18+0 records out
18874368 bytes (19 MB) copied, 0.210064 seconds, 89.9 MB/s
[w1@localhost vfastlv]$ dd if=/dev/zero of=w11 bs=1M count=10
dm-2: warning, user block quota exceeded.
10+0 records in
10+0 records out
10485760 bytes (10 MB) copied, 0.179783 seconds, 58.3 MB/s
[w1@localhost vfastlv]$ dd if=/dev/zero of=w111 bs=1M count=50
dm-2: write failed, user block limit reached.
dd: 写入 “w111”: 超出磁盘限额
2+0 records in
1+0 records out
1314816 bytes (1.3 MB) copied, 0.0535413 seconds, 24.6 MB/s
[w1@localhost vfastlv]$