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[linux隞也 LVM 摮

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2016-1-20 16:52:08 | 芰閰脖 撣 |摨閬 |梯璅∪
: http://linux.vbird.org/linux_basic/0420quota.php#lvm0 D2 o. E0 b$ B% I  Z' p/ w
         http://linux.vbird.org/linux_basic/0230filesystem.php#gdisk' I) o3 D! X* c. J1 A! b9 ^9 d
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[敶扳曉之LV摰寥]) c* l6 |$ ^% |; V& c3 R9 j% L
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) A, l7 j$ K- d' Z7 A1) lvextend -l 178813 /dev/11HD_vg/11HD_lv ' a1 t- M2 ~7 }- n- ^

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* V+ Q% e4 i" d1 b4 L178813舀炬憭抒size,憒2.7T=178813 PE, 1 PE=16MB! s9 D2 B! X, P4 Z) ^9 Z" j
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6 ]3 i0 s$ \8 V. p, [2)lvresize -l 1966943 /dev/11HD_vg/11HD_lv, _+ _4 U/ }5 n
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1966943臬憭批蝮編ize,憒30T=1966943 PE , 臭誑 vgdisplay 11HD_vg 亦桀 vg 閰喟敦鞈,咨otal size and free size ,桐賣 PE
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3)resize2fs /dev/11HD_vg/11HD_lv
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P.S憒曆迷disk隞,雿輻 yum install gdisk 摰鋆7 m. W7 E9 g8 o( x8 q8 K
雿輻 gdisk 脩,
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Hex code or GUID (L to show codes, Enter = 8300):  頛詨8e00  ===> LVM (logical volumn manager)7 |7 h/ X, l3 u" x
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[蝘駁小v]
$ h& G- U/ M, }8 Kpvscan or pvdisplay 瘥蝖祉憿舐內:3 v. V/ B5 q5 W: K  ]2 z
Couldn't find device with uuid WWeM0m-MLX2-o0da-tf7q-fJJu-eiGl-e7UmM3
2 u, o, e% K( A4 `- ?  YPV Name               unknown device& V. n/ A. V9 b0 a1 Y

, V$ }) o7 I- u$ i! ]' m望潛′蝣瘥,蝝汲G,甇日蝘駁 PV:3 j! a6 y( B8 c/ ~
vgreduce --removemissing --force 11HD_vg  #雿銋 LV芷,撱 LV1 O- i8 V. |: ~: m7 G  Z
pvscan or pvdisplay 撠曹憿舐內 "unknown device"
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[憒雿mount 撌脣冽潔憿蝖祉找LVMpartition]
4 f3 m+ Q7 ?! i& j3 X#pvscan7 L8 v/ t- P) n% i- l: Y) E
  PV /dev/sdc2   VG vg_centos6   lvm2 [27.46 GiB / 0    free]      <===== 曆犖唾mount LVM (撌脣冽澆仿蝖祉)
% S7 Y: x- Y" M3 {! h  PV /dev/sdb2   VG vg_test      lvm2 [18.92 GiB / 0    free]
' F# ?9 c) q; h; I; ?& ?$ h$ U  Total: 2 [46.39 GiB] / in use: 2 [46.39 GiB] / in no VG: 0 [0   ]6 N8 u% j# ^% K4 \& i  `/ ?- t) p
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#vgscan
! B3 C2 }$ |# Y/ k: y  Reading all physical volumes.  This may take a while..., C! T3 s9 P, c. a  E
  Found volume group "vg_centos6" using metadata type lvm2
8 o  O+ g& T5 W  i. O0 \  Found volume group "vg_test" using metadata type lvm2! _* K, ^! I9 J! f- J: q5 l7 p8 x( e

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#lvscan& {$ T( s" O% Y, x
  inactive            '/dev/vg_centos6/lv_root' [21.84 GiB] inherit    <====芸
" w3 I% r# b! |% K# z  inactive            '/dev/vg_centos6/lv_swap' [5.62 GiB] inherit    <====芸
$ N" X5 O9 A, i( W% D  ACTIVE            '/dev/vg_test/lv_root' [16.98 GiB] inherit
& T+ {- r" r0 w( @2 g! y6 X  ACTIVE            '/dev/vg_test/lv_swap' [1.94 GiB] inherit
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+ _# w6 ]2 X% Q8 M( R* H#lvdisplay /dev/vg_centos6/lv_root
: y( Z. A9 N+ f( n7 e8 v8 K) j0 w  --- Logical volume ---
+ h4 E5 j& K1 v4 A  LV Path                /dev/vg_centos6/lv_root
- @5 v2 V# @3 k, Q7 Z7 [  LV Name                lv_root
9 u( m; K% m& Y$ H: z4 Q% F  VG Name                vg_centos6
; e# d# S2 Z  z2 V' {  LV UUID                0nFiiu-yDQG-1JUB-JI2r-uoTe-Hupi-WGisCe3 o& Z) {7 F  D7 i7 E8 a
  LV Write Access        read/write
* U- o2 C% G' w/ b' n8 H6 _' O  LV Creation host, time ,
. R# J: W9 u  i) v5 O  LV Status              unavailable      <==== 銝舐
% H3 O' F( q( u' ^2 |  # open                 1
% {$ t+ i/ i- N# o# ?* h. P  LV Size                21.84 GiB
3 A8 i! M8 D' X$ k: {; V3 w  Current LE             5591
4 c6 b; ~" k6 z( h  Segments               1
5 d- x2 |! x0 o5 H; |, n4 H  Allocation             inherit
5 E: Y: u; {$ \  Read ahead sectors     auto
5 V& N6 G" U9 Z+ I: V& K  - currently set to     256, j4 d/ ?1 n, u7 S% X, L
  Block device           253:2# V8 U  s- e7 p& i6 G9 p

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暺券鋆:
: x+ S' w2 W% y3 qvgchange -ay vg_centos6     <====== VG     (憒 VG ==> vgchange -an vg_centos6)
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#lvscan/ C0 a$ H5 f5 U; w* k6 E' Q
  ACTIVE            '/dev/vg_centos6/lv_root' [21.84 GiB] inherit  <====撌脣鈭2 ?' K! o1 b$ G. |+ D; p5 c7 k  e
  ACTIVE            '/dev/vg_centos6/lv_swap' [5.62 GiB] inherit  <====撌脣鈭
! M9 E; w  j* i) k5 C7 U  ACTIVE            '/dev/vg_test/lv_root' [16.98 GiB] inherit
$ E+ v7 a# ]! V  ACTIVE            '/dev/vg_test/lv_swap' [1.94 GiB] inherit
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; y2 i; N' N9 m0 ~/ k1 P, Q; smount LVM:( \8 t7 F" W$ E6 r4 f6 h, D
mkdir /mnt/lvmdisk
" y& Z  u+ m7 e  C1 Nmount /dev/vg_centos6/lv_root  /mnt/lvmdisk
5 F, H$ f4 K" b+ m; i憭批!
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