连起来写的
二、lvM扩展(本次扩展需要pv、vg、LV等扩展) ) ) ) ) ) ) )。
需求分析:
/ora01需要5G扩展
)1)查看想要放大的/ora01的空间状况(root@DB01test ) #df-h
filesystemsizeusedavailuse % mounted on
/dev/sda345G4.4G39G11%/
tmpfs1004M01004M0%/dev/shm
/dev/sda1485M39M421M9%/boot
/dev/sdb279G184M75G1%/oracle
/dev/sdb120G172M19G1%/soft
/dev/SDD 11007 M18 m 939 m2 %/Alex Peng
/dev/mapper/Oracle VG-LV Oracle 2.0g 68m 1.9 G4 %/ora 01
)2)查看当前vg大小,可用空间小于5g的5G[root@db01test]#vgs
VG#PV#LV#SNAttrVSizeVFree
OracleVG310wz----n-5.99g3.99g
[root@db01/]#vgdisplay
---卷组--- -
VGNameoraclevg
系统身份
格式LVM 2
元数据areas 3
MetadataSequenceNo2
VGAccessread/write
VGStatusresizable
MAXLV0
CurLV1
OpenLV1
MaxPV0
CurPV3
ActPV3
VGSize5.99GiB
PESize4.00MiB
总PE 1533
AllocPE/Size512/2.00GiB
FreePE/Size1021/3.99GiB
vguidiznwjz-xbio-uvvl-y3h6- KVM4- gfuy-CX IAD 1
)3)加载磁盘并检查磁盘状况[ root @ db01/] # fdisk-l|grep ' disk/dev/SD '
warning :指南可检测的on '/dev/SDD '! theutilfdiskdoesn ' tsupportgpt.usegnuparted.'
磁盘/dev/sda :53.7 GB,53687091200bytes
磁盘/dev/sdb :107.4 GB,107374182400bytes
磁盘/dev/SDC :107.4 GB,107374182400bytes
磁盘/dev/SDD :1073 MB,1073741824bytes
磁盘/dev/SDE :2147 MB,2147483648bytes
Disk/dev/sdf:2147MB,2147483648字节
磁盘/dev/SDG :2147 MB,2147483648bytes
Disk/dev/sdh:2147MB,2147483648bytes
)4)将新添加的磁盘添加到物理卷
说明:将整个磁盘添加到PV。 不使用分区也可以不格式化。 向PV添加分区时,必须使用上面提到的fdisk或parted分区。 [root@db01/]#pvcreate/dev/sdh
物理卷'/dev/SDH ' successfully created
[root@db01/]#
[root@db01/]#pvs
PVVGFmtAttrPSizePFree
/dev/sdeoraclevglvm 2a---- 2.00 G0
/dev/sdforaclevglvm 2a---- 2.00 g 1.99 g
/dev/sdgoraclevglvm 2a---- 2.00 g 2.00 g
/dev/sdhlvm2a--2.00g2.00g
)5)将新物理卷扩展到卷组[根@ db01/] # vgextendoraclevg/dev/SDH
卷组' Oracle VG ' successfully extended
[root@db01/]#
[root@db01/]#vgs
VG#PV#LV#SNAttrVSizeVFree
OracleVG410wz----n-7.98g5.98g
(6)将逻辑卷扩展到卷组[root@db01/]#lvs
lvgattrlsizepoolorigindata % movelogcpy % sync convert
lvoracleoraclevg-wi-ao----2.00g
[ root @ db01/] # lvextend-l5g/dev/Oracle VG/LV Oracle # # LV Oracle扩展了5g
extendinglogicalvolumelvoracleto 7.00 gib
logicalvolumelvoraclesuccessfullyresized
[root@db01/]#
[root@db01/]#
[root@db01/]#lvs
lvgattrlsizepoolorigindata % movelogcpy % sync convert
lvoracleoraclevg-wi-ao---- 7.00 g
(7)重新设置LV的文件系统大小[ root @ db01/] # resize2fs/dev/Oracle VG/LV Oracle
resize2fs1. 41.12 (17天- 2010 )。
filesys temat/dev/Oracle VG/lvoracleismountedon/ora 01; 在线签名请求
olddesc_blocks=1,new_desc_blocks=1
性能与在线版/dev/Oracle VG/lvoracleto 1835008 (4k ) blocks。
thefilesystemon/dev/Oracle VG/lvoracleisnow 1835008块长。
)8)检查是否加载了逻辑卷扩展[root@db01/]#df-h
filesystemsizeusedavailuse % mounted on
/dev/sda345G4.4G39G11%/
tmpfs1004M01004M0%/dev/shm
/dev/sda1485M39M421M9%/boot
/dev/sdb279G184M75G1%/oracle
/dev/sdb120G172M19G1%/soft
/dev/SDD 11007 M18 m 939 m2 %/Alex Peng
/dev/mapper/Oracle VG-LV Oracle 6.9 g 69 m 6.5 G2 %/ora 01