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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#lvm. P4 {# {/ p! O# c
         http://linux.vbird.org/linux_basic/0230filesystem.php#gdisk6 G  ]- i' c- w1 @1 t3 W

* B( l$ s) W6 Z[敶扳曉之LV摰寥]
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" [7 F$ K) Q. }. m1) lvextend -l 178813 /dev/11HD_vg/11HD_lv   B/ @* C- V$ @7 G) E4 Z

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178813舀炬憭抒size,憒2.7T=178813 PE, 1 PE=16MB5 p$ q5 `7 t2 Y  X4 @) j) S! ~
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" \% d, i) l* C2 w: e2)lvresize -l 1966943 /dev/11HD_vg/11HD_lv
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: l. ^) e  j5 M$ p1966943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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# R5 ~8 \; D  r! z* ?/ VP.S憒曆迷disk隞,雿輻 yum install gdisk 摰鋆6 g/ y( Y# Y1 U& b5 G
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)" W4 r5 c! y( x7 ^9 M

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[蝘駁小v]
! A  Q- a8 M2 Gpvscan or pvdisplay 瘥蝖祉憿舐內:
& l0 F! H! s& G# X3 H2 _Couldn't find device with uuid WWeM0m-MLX2-o0da-tf7q-fJJu-eiGl-e7UmM3
5 Y2 t/ t4 f) G7 ?" p9 XPV Name               unknown device) P; [- p; f8 s: M2 y
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望潛′蝣瘥,蝝汲G,甇日蝘駁 PV:
5 {1 u5 h  q/ Mvgreduce --removemissing --force 11HD_vg  #雿銋 LV芷,撱 LV
. e7 M7 m; v& ~# ^4 g  y( Apvscan or pvdisplay 撠曹憿舐內 "unknown device"" V& C# V! h, i) i2 Y3 E
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+ [1 P/ T& I4 q; s2 n[憒雿mount 撌脣冽潔憿蝖祉找LVMpartition]
3 q4 x1 Q8 M& f7 ]5 v  ?- Z#pvscan1 a+ S& W6 C+ n; I+ s" O" I
  PV /dev/sdc2   VG vg_centos6   lvm2 [27.46 GiB / 0    free]      <===== 曆犖唾mount LVM (撌脣冽澆仿蝖祉)
/ @7 o( g9 ~3 o5 x1 p  PV /dev/sdb2   VG vg_test      lvm2 [18.92 GiB / 0    free]
, V  [. P2 M7 L2 U/ v) J5 e+ ]( y  Total: 2 [46.39 GiB] / in use: 2 [46.39 GiB] / in no VG: 0 [0   ]
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( s8 s7 s- ]* q, m- s" F#vgscan
/ _; ]4 J& V0 q: |, d* B/ D+ f  Reading all physical volumes.  This may take a while...' D* e3 h& f0 ~& {
  Found volume group "vg_centos6" using metadata type lvm2
; Q, {8 `8 T# o: p  Found volume group "vg_test" using metadata type lvm22 [! Y% T- E/ l5 i& \0 [- S
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#lvscan8 P1 f" F5 K; Y8 l+ B1 h
  inactive            '/dev/vg_centos6/lv_root' [21.84 GiB] inherit    <====芸# j7 ]* y4 {8 o1 F  k* T4 A! v
  inactive            '/dev/vg_centos6/lv_swap' [5.62 GiB] inherit    <====芸' J, g, i9 `9 r8 [
  ACTIVE            '/dev/vg_test/lv_root' [16.98 GiB] inherit
6 {! C4 h! J1 _1 v# O1 o( C# t4 O  ACTIVE            '/dev/vg_test/lv_swap' [1.94 GiB] inherit* N+ |7 p& L8 S  K" ?  }
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#lvdisplay /dev/vg_centos6/lv_root
1 Y; {5 k/ d1 v0 w& Z6 y; _  --- Logical volume ---9 Z& c9 g8 ~5 O5 {' p- U6 w; g' A
  LV Path                /dev/vg_centos6/lv_root
& S0 d* C: _0 ~+ r3 {8 a9 ^  LV Name                lv_root
5 k4 X8 p* W$ c/ `$ C  VG Name                vg_centos6
" o6 _) ?* q. l1 B5 j% m2 R  LV UUID                0nFiiu-yDQG-1JUB-JI2r-uoTe-Hupi-WGisCe/ X' `0 @) h: ~1 I
  LV Write Access        read/write
7 m; ^% `/ \1 d  LV Creation host, time ,
% s0 J* j- N2 H0 s* m  LV Status              unavailable      <==== 銝舐
3 P3 z4 Y& p% o9 i/ [# ?, Z  # open                 1, E$ L- z! Q# _0 L5 X
  LV Size                21.84 GiB2 r; z3 n: L  z# g( W
  Current LE             5591
9 V4 D; O1 D+ E" ~* F  Segments               1! Z) A6 l4 N7 [
  Allocation             inherit" [1 W# @+ S* T! R4 I2 `
  Read ahead sectors     auto7 X0 [5 ~0 U# g
  - currently set to     256
9 Q9 K( m0 I( f$ L, J* G  Block device           253:2
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vgchange -ay vg_centos6     <====== VG     (憒 VG ==> vgchange -an vg_centos6)
+ P) v$ G4 p3 \4 L乩甈 LV:
: G6 N" v; @/ {6 m#lvscan
6 P0 ]: J/ y4 [/ \7 j+ x  ACTIVE            '/dev/vg_centos6/lv_root' [21.84 GiB] inherit  <====撌脣鈭
. x( u/ B: f0 }$ [% d6 C! T: ^  ACTIVE            '/dev/vg_centos6/lv_swap' [5.62 GiB] inherit  <====撌脣鈭0 H% U8 j$ d3 a* E) F
  ACTIVE            '/dev/vg_test/lv_root' [16.98 GiB] inherit
8 U! a4 d3 j3 t7 B  ACTIVE            '/dev/vg_test/lv_swap' [1.94 GiB] inherit: _7 ~6 t2 M: a7 z
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! W3 M* f; G2 {& j9 |mount LVM:
) C' v0 B* c4 R1 [mkdir /mnt/lvmdisk
4 _5 l4 q8 B( K# h# P* kmount /dev/vg_centos6/lv_root  /mnt/lvmdisk
* g. m& f3 ?- Q9 T6 [% Y憭批!
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