DELL R410本来有两块146G的硬盘,再新增一块146G硬盘
现在硬盘便宜了,天猫价650,另需硬盘托架一个70大洋.
开启硬件检测后重启服务器
- chkconfig haldaemon on
- chkconfig messagebus on
- #centos6 没有kudzu服务改用udev
- chkconfig kudzu on
认出了新硬盘/dev/sdc
# fdisk -l
- Disk /dev/sda: 146.8 GB, 146815733760 bytes
- 255 heads, 63 sectors/track, 17849 cylinders
- Units = cylinders of 16065 * 512 = 8225280 bytes
-
- Device Boot Start End Blocks Id System
- /dev/sda1 * 1 25 200781 83 Linux
- /dev/sda2 26 1069 8385930 82 Linux swap / Solaris
- /dev/sda3 1070 17849 134785350 8e Linux LVM
-
- Disk /dev/sdb: 146.8 GB, 146815733760 bytes
- 255 heads, 63 sectors/track, 17849 cylinders
- Units = cylinders of 16065 * 512 = 8225280 bytes
-
- Device Boot Start End Blocks Id System
- /dev/sdb1 * 1 17849 143372061 8e Linux LVM
-
- Disk /dev/sdc: 146.8 GB, 146815737856 bytes
- 255 heads, 63 sectors/track, 17849 cylinders
- Units = cylinders of 16065 * 512 = 8225280 bytes
-
- Disk /dev/sdc doesn't contain a valid partition table
查看现有pv
# pvdisplay
- --- Physical volume ---
- PV Name /dev/sdb1
- VG Name VolGroup01
- PV Size 136.73 GB / not usable 11.78 MB
- Allocatable yes (but full)
- PE Size (KByte) 32768
- Total PE 4375
- Free PE 0
- Allocated PE 4375
- PV UUID p2QSKt-hLuG-xGF5-Cj8t-9IxX-cKCf-hP7hIu
-
- --- Physical volume ---
- PV Name /dev/sda3
- VG Name VolGroup00
- PV Size 128.54 GB / not usable 10.32 MB
- Allocatable yes (but full)
- PE Size (KByte) 32768
- Total PE 4113
- Free PE 0
- Allocated PE 4113
- PV UUID wdCg83-8jEM-XQtP-gmuX-lYor-IpWn-Hve2mr
对新硬盘分区,lvm的id为8e
# fdisk /dev/sdc
- Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
- Building a new DOS disklabel. Changes will remain in memory only,
- until you decide to write them. After that, of course, the previous
- content won't be recoverable.
-
-
- The number of cylinders for this disk is set to 17849.
- There is nothing wrong with that, but this is larger than 1024,
- and could in certain setups cause problems with:
- 1) software that runs at boot time (e.g., old versions of LILO)
- 2) booting and partitioning software from other OSs
- (e.g., DOS FDISK, OS/2 FDISK)
- Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
-
- Command (m for help): p
-
- Disk /dev/sdc: 146.8 GB, 146815737856 bytes
- 255 heads, 63 sectors/track, 17849 cylinders
- Units = cylinders of 16065 * 512 = 8225280 bytes
-
- Device Boot Start End Blocks Id System
-
- Command (m for help): n
- Command action
- e extended
- p primary partition (1-4)
- p
- Partition number (1-4): 1
- First cylinder (1-17849, default 1):
- Using default value 1
- Last cylinder or +size or +sizeM or +sizeK (1-17849, default 17849):
- Using default value 17849
-
- Command (m for help): p
-
- Disk /dev/sdc: 146.8 GB, 146815737856 bytes
- 255 heads, 63 sectors/track, 17849 cylinders
- Units = cylinders of 16065 * 512 = 8225280 bytes
-
- Device Boot Start End Blocks Id System
- /dev/sdc1 1 17849 143372061 83 Linux
-
- Command (m for help): t
- Selected partition 1
- Hex code (type L to list codes): 8e
- Changed system type of partition 1 to 8e (Linux LVM)
-
- Command (m for help): p
-
- Disk /dev/sdc: 146.8 GB, 146815737856 bytes
- 255 heads, 63 sectors/track, 17849 cylinders
- Units = cylinders of 16065 * 512 = 8225280 bytes
-
- Device Boot Start End Blocks Id System
- /dev/sdc1 1 17849 143372061 8e Linux LVM
-
- Command (m for help): w
创建pv
- # pvcreate /dev/sdc1
- Physical volume "/dev/sdc1" successfully created
- # pvdisplay
- --- Physical volume ---
- PV Name /dev/sdb1
- VG Name VolGroup01
- PV Size 136.73 GB / not usable 11.78 MB
- Allocatable yes (but full)
- PE Size (KByte) 32768
- Total PE 4375
- Free PE 0
- Allocated PE 4375
- PV UUID p2QSKt-hLuG-xGF5-Cj8t-9IxX-cKCf-hP7hIu
-
- --- Physical volume ---
- PV Name /dev/sda3
- VG Name VolGroup00
- PV Size 128.54 GB / not usable 10.32 MB
- Allocatable yes (but full)
- PE Size (KByte) 32768
- Total PE 4113
- Free PE 0
- Allocated PE 4113
- PV UUID wdCg83-8jEM-XQtP-gmuX-lYor-IpWn-Hve2mr
-
- "/dev/sdc1" is a new physical volume of "136.73 GB"
- --- NEW Physical volume ---
- PV Name /dev/sdc1
- VG Name
- PV Size 136.73 GB
- Allocatable NO
- PE Size (KByte) 0
- Total PE 0
- Free PE 0
- Allocated PE 0
- PV UUID rifdUK-ACXa-hGlM-L5iD-UkZ5-p4It-pshfwd
创建vg
- # vgcreate VolGroup02 /dev/sdc1
- Volume group "VolGroup02" successfully created
- # vgdisplay
- --- Volume group ---
- VG Name VolGroup02
- 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 136.73 GB
- PE Size 4.00 MB
- Total PE 35002
- Alloc PE / Size 0 / 0
- Free PE / Size 35002 / 136.73 GB
- VG UUID YLvkVA-OZQJ-p3yZ-5fEg-4xmH-dXMF-6ZcqTY
-
- --- Volume group ---
- VG Name VolGroup01
- System ID
- Format lvm2
- Metadata Areas 1
- Metadata Sequence No 2
- VG Access read/write
- VG Status resizable
- MAX LV 0
- Cur LV 1
- Open LV 1
- Max PV 0
- Cur PV 1
- Act PV 1
- VG Size 136.72 GB
- PE Size 32.00 MB
- Total PE 4375
- Alloc PE / Size 4375 / 136.72 GB
- Free PE / Size 0 / 0
- VG UUID bTRPY7-sETF-7yrw-8Iaa-jgMp-msLb-VFf9Pv
-
- --- Volume group ---
- VG Name VolGroup00
- System ID
- Format lvm2
- Metadata Areas 1
- Metadata Sequence No 3
- VG Access read/write
- VG Status resizable
- MAX LV 0
- Cur LV 2
- Open LV 2
- Max PV 0
- Cur PV 1
- Act PV 1
- VG Size 128.53 GB
- PE Size 32.00 MB
- Total PE 4113
- Alloc PE / Size 4113 / 128.53 GB
- Free PE / Size 0 / 0
- VG UUID dZu73K-djmf-Qqes-7Bl2-NcGr-12cx-2ygDPt
创建逻辑卷,分配全部空间
- # lvcreate -l 100%FREE -n /dev/VolGroup02/LogVol00 VolGroup02
- Logical volume "LogVol00" created
- # lvdisplay
- --- Logical volume ---
- LV Name /dev/VolGroup02/LogVol00
- VG Name VolGroup02
- LV UUID TThlLG-BUNw-smr9-Cv1d-cv8D-1V8i-cB0Hfa
- LV Write Access read/write
- LV Status available
- # open 0
- LV Size 136.73 GB
- Current LE 35002
- Segments 1
- Allocation inherit
- Read ahead sectors auto
- - currently set to 256
- Block device 253:3
-
- --- Logical volume ---
- LV Name /dev/VolGroup01/LogVol00
- VG Name VolGroup01
- LV UUID 0JbGWl-ivcx-g4WL-JHY7-RcXc-hEM5-V3htC1
- LV Write Access read/write
- LV Status available
- # open 1
- LV Size 136.72 GB
- Current LE 4375
- Segments 1
- Allocation inherit
- Read ahead sectors auto
- - currently set to 256
- Block device 253:2
-
- --- Logical volume ---
- LV Name /dev/VolGroup00/LogVol01
- VG Name VolGroup00
- LV UUID cZ3Vnw-PMIx-LUNQ-N53R-etKc-s1BS-AmQE82
- LV Write Access read/write
- LV Status available
- # open 1
- LV Size 118.53 GB
- Current LE 3793
- Segments 1
- Allocation inherit
- Read ahead sectors auto
- - currently set to 256
- Block device 253:0
-
- --- Logical volume ---
- LV Name /dev/VolGroup00/LogVol00
- VG Name VolGroup00
- LV UUID R5fS7y-9649-kyZi-VFmn-24lh-ju2w-Uk7TzY
- LV Write Access read/write
- LV Status available
- # open 1
- LV Size 10.00 GB
- Current LE 320
- Segments 1
- Allocation inherit
- Read ahead sectors auto
- - currently set to 256
- Block device 253:1
格式化分区
- # mkfs -t ext3 /dev/VolGroup02/LogVol00
- mke2fs 1.39 (29-May-2006)
- Filesystem label=
- OS type: Linux
- Block size=4096 (log=2)
- Fragment size=4096 (log=2)
- 17924096 inodes, 35842048 blocks
- 1792102 blocks (5.00%) reserved for the super user
- First data block=0
- Maximum filesystem blocks=4294967296
- 1094 block groups
- 32768 blocks per group, 32768 fragments per group
- 16384 inodes per group
- Superblock backups stored on blocks:
- 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
- 4096000, 7962624, 11239424, 20480000, 23887872
-
- Writing inode tables: done
- Creating journal (32768 blocks): done
- Writing superblocks and filesystem accounting information:
-
- done
-
- This filesystem will be automatically checked every 23 mounts or
- 180 days, whichever comes first. Use tune2fs -c or -i to override.
挂载分区
- # mkdir /data
- # mount /dev/VolGroup02/LogVol00 /data
- # df -h
- 文件系统 容量 已用 可用 已用% 挂载点
- /dev/mapper/VolGroup00-LogVol01
- 115G 12G 98G 11% /
- /dev/mapper/VolGroup00-LogVol00
- 9.7G 152M 9.1G 2% /tmp
- /dev/mapper/VolGroup01-LogVol00
- 133G 35G 91G 28% /opt
- /dev/sda1 190M 13M 168M 7% /boot
- tmpfs 7.9G 92K 7.9G 1% /dev/shm
- /dev/mapper/VolGroup02-LogVol00
- 135G 188M 128G 1% /data
启动后自动挂载
- vi /etc/fstab
- /dev/VolGroup02/LogVol00 /data ext3 defaults 1 2
测试写入
- #cd /data
- #touch testfile