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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$ ?& g! C6 s8 ]9 h
         http://linux.vbird.org/linux_basic/0230filesystem.php#gdisk
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[敶扳曉之LV摰寥]" f1 c7 u, \: L1 t! c1 \/ K

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, p0 M& G, t, u+ |0 U  Y; e1) lvextend -l 178813 /dev/11HD_vg/11HD_lv
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, i" s$ ?# I2 D% d178813舀炬憭抒size,憒2.7T=178813 PE, 1 PE=16MB1 a* p! D# o# u/ u- ~% w

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* N  c- f  M/ r" b+ t2)lvresize -l 1966943 /dev/11HD_vg/11HD_lv8 i8 U4 J* A+ D  I, C, O0 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, y; {4 C% d; K8 _3 |
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3)resize2fs /dev/11HD_vg/11HD_lv
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3 C+ c* G' c! _( P3 v2 SP.S憒曆迷disk隞,雿輻 yum install gdisk 摰鋆
8 Y3 ^5 R( ^! h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)9 w, h4 u# j# `0 ?

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[蝘駁小v]" O# p2 r: }$ U8 p* W; \5 i6 H
pvscan or pvdisplay 瘥蝖祉憿舐內:
( E7 x; {% e! s( I4 lCouldn't find device with uuid WWeM0m-MLX2-o0da-tf7q-fJJu-eiGl-e7UmM3* s: w3 h  \$ Y
PV Name               unknown device, Y( [) m3 `% |( l- B
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望潛′蝣瘥,蝝汲G,甇日蝘駁 PV:
8 b7 o  w8 o' m' V; f6 Cvgreduce --removemissing --force 11HD_vg  #雿銋 LV芷,撱 LV! l- c8 T4 k* S& S
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]
+ P- v' w& }, f#pvscan
' O0 E: {+ y% ^, S: D- 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)8 }* `$ C8 `& P5 I
  PV /dev/sdb2   VG vg_test      lvm2 [18.92 GiB / 0    free]2 E  l' ], ]$ j  Z
  Total: 2 [46.39 GiB] / in use: 2 [46.39 GiB] / in no VG: 0 [0   ]
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' _1 [: A. m) d; \# l( s#vgscan' m0 u, i% q* B+ N
  Reading all physical volumes.  This may take a while...
3 F9 ~) ?1 L$ ?+ d& O0 _  Found volume group "vg_centos6" using metadata type lvm26 I/ A/ S8 Y& @, S# a, N7 A2 D( ?! o& T
  Found volume group "vg_test" using metadata type lvm2
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& R+ j3 }. f: r0 j; w9 i' Y% N#lvscan( M! r9 j& w: Y: i* X8 P
  inactive            '/dev/vg_centos6/lv_root' [21.84 GiB] inherit    <====芸
& |  Y: Z5 r2 _/ `4 j/ \$ C  inactive            '/dev/vg_centos6/lv_swap' [5.62 GiB] inherit    <====芸: p( X& e  [7 v: B, }% V
  ACTIVE            '/dev/vg_test/lv_root' [16.98 GiB] inherit4 n* k: ^% }) k; n! U3 X
  ACTIVE            '/dev/vg_test/lv_swap' [1.94 GiB] inherit8 w$ H& l8 a3 @! c( k0 |& a
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#lvdisplay /dev/vg_centos6/lv_root# j7 X6 s7 y/ E9 w& ^6 z% H
  --- Logical volume ---
6 K, a6 i) z. J# V( C% P( W3 \  LV Path                /dev/vg_centos6/lv_root# P! U. ~3 P7 T2 D6 Z  n) K7 X$ @$ a' n
  LV Name                lv_root
/ i  r# S7 P9 g/ z$ D3 @( \% ?  VG Name                vg_centos6
0 m3 _- \# [7 i- N/ B  LV UUID                0nFiiu-yDQG-1JUB-JI2r-uoTe-Hupi-WGisCe! u$ Y+ g! r3 N8 H8 p) [
  LV Write Access        read/write/ M6 [4 V7 E' Q) K& V2 p. F
  LV Creation host, time ,& T. U- o6 V% o
  LV Status              unavailable      <==== 銝舐
2 |, [- W+ ]% _7 o8 k& Y) z: y3 K  # open                 1- y" J2 \! b0 ~$ G' I! x
  LV Size                21.84 GiB
7 z2 ^* J5 l- P4 k) a8 X* a4 t  Current LE             5591; j) G2 Y0 a& _' K
  Segments               1, t- T" q, d% W: b4 x7 `
  Allocation             inherit
( T0 B1 \7 f8 V. W  Read ahead sectors     auto$ P9 r1 |  K! x! H6 _  \
  - currently set to     256
: G0 M- q% T2 c- r/ G# N" d8 r  Block device           253:2+ N& v  L9 }+ n) b# Q* @- R
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暺券鋆:" j8 p4 ]/ x2 v( ?
vgchange -ay vg_centos6     <====== VG     (憒 VG ==> vgchange -an vg_centos6)
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8 _/ \4 q4 v7 L0 e2 W% N4 V#lvscan' w$ P. \* u3 d+ O, u
  ACTIVE            '/dev/vg_centos6/lv_root' [21.84 GiB] inherit  <====撌脣鈭
  D1 R' ]) n& C$ ]5 x  ACTIVE            '/dev/vg_centos6/lv_swap' [5.62 GiB] inherit  <====撌脣鈭0 Y: j9 h% Z8 z3 G& c% M4 s) j
  ACTIVE            '/dev/vg_test/lv_root' [16.98 GiB] inherit
* j' n# G7 H1 p% q5 w* m" r/ }9 z7 V  ACTIVE            '/dev/vg_test/lv_swap' [1.94 GiB] inherit1 l$ e, L( ^" c' e0 }1 P. e1 X

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mount LVM:
3 x0 i4 Z! w" }, U- Pmkdir /mnt/lvmdisk$ l2 N& ]2 C+ B5 b) m- [' G5 v+ n
mount /dev/vg_centos6/lv_root  /mnt/lvmdisk
6 L2 Y# x3 s6 n" n- r2 f. N5 N憭批!
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雿輻券

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