lvm在线扩展硬盘空间

Disk/dev/xvdc:21.5GB,21474836480bytes

255heads,63sectors/track,2610cylinders

Units=cylindersof16065*512=8225280bytes

Sectorsize(logical/physical):512bytes/512bytes

I/Osize(minimum/optimal):512bytes/512bytes

Diskidentifier:0x00000000

[root@localhosthtml]#pvcreate/dev/xvdc

Physicalvolume"/dev/xvdc"successfullycreated

[root@localhosthtml]#vgdisplay

---Volumegroup---

VGNameVolGroup

SystemID

Formatlvm2

MetadataAreas2

MetadataSequenceNo5

VGAccessread/write

VGStatusresizable

MAXLV0

CurLV2

OpenLV2

MaxPV0

CurPV2

ActPV2

VGSize27.50GiB

PESize4.00MiB

TotalPE7041

AllocPE/Size7041/27.50GiB

FreePE/Size0/0

VGUUIDmgjhDB-BF22-hhA8-ltxd-fslP-xI0y-Q0C6ZH

[root@localhosthtml]#vgextendVolGroup/dev/xvdc

Volumegroup"VolGroup"successfullyextended

MetadataAreas3

MetadataSequenceNo6

CurPV3

ActPV3

VGSize47.50GiB

TotalPE12160

FreePE/Size5119/20.00GiB

[root@localhosthtml]#lvextend-l+5119/dev/mapper/VolGroup-lv_root

Extendinglogicalvolumelv_rootto45.53GiB

Logicalvolumelv_rootsuccessfullyresized

[root@localhosthtml]#df-h

FilesystemSizeUsedAvailUse%Mountedon

/dev/mapper/VolGroup-lv_root

26G24G769M97%/

tmpfs497M0497M0%/dev/shm

/dev/xvda1485M32M429M7%/boot

[root@localhosthtml]#resize2fs/dev/mapper/VolGroup-lv_root

resize2fs1.41.12(17-May-2010)

Filesystemat/dev/mapper/VolGroup-lv_rootismountedon/;on-lineresizingrequired

olddesc_blocks=2,new_desc_blocks=3

Performinganon-lineresizeof/dev/mapper/VolGroup-lv_rootto11935744(4k)blocks.

Thefilesystemon/dev/mapper/VolGroup-lv_rootisnow11935744blockslong.

45G24G20G55%/

[root@localhosthtml]#df

Filesystem1K-blocksUsedAvailableUse%Mountedon

47002548242417282038722455%/

tmpfs50824005082400%/dev/shm

/dev/xvda1495844319434383017%/boot

150062015006200100%/home/iamyou/iso/d2

MetadataSequenceNo7

AllocPE/Size12160/47.50GiB

[root@localhosthtml]#lvdisplay

---Logicalvolume---

LVPath/dev/VolGroup/lv_root

LVNamelv_root

LVUUIDtWVTIT-JFOG-SdLZ-sYU2-0fNv-VtMV-kjlkq6

LVWriteAccessread/write

LVCreationhost,timelocalhost.localdomain,2013-07-1116:25:45+0800

LVStatusavailable

#open1

LVSize45.53GiB

CurrentLE11656

Segments3

Allocationinherit

Readaheadsectorsauto

-currentlysetto256

Blockdevice253:0

LVPath/dev/VolGroup/lv_swap

LVNamelv_swap

LVUUIDksYpr3-cmif-8srx-iphm-ormy-nwyy-edPD15

LVCreationhost,timelocalhost.localdomain,2013-07-1116:25:48+0800

LVSize1.97GiB

CurrentLE504

Segments1

Blockdevice253:1

[root@localhosthtml]#df-k

47002548242417442038720855%/

本文转自 jxwpx 51CTO博客，原文链接：http://blog.51cto.com/jxwpx/1298037，如需转载请自行联系原作者