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[linux隞也 雿輻 gdiskparted(舀孱PT)隞支脩′蝣,fdisk 芣舀尋BR銝舀孱PT

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頝唾唳摰璅撅
璅銝
潸” 2016-1-2 20:13:26 | 芰閰脖 撣 |摨閬 |梯璅∪
砍敺 IT_man 2017-3-21 22:08 蝺刻摩
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: http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid( M- u" T) `5 X2 ?' a& B" _
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
  c9 C; g, k! S  L- F7 q% ^format 憭扳 16TB 蝖祉(>16TB銝摰閬冽迨隞) : http://www.unix-ninja.com/p/Formatting_Ext4_volumes_beyond_the_16TB_limit/http://blog.yourdream.cc/2014/11/19/morethan16t.html* c- M! h" Q0 [# R
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啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:8 ^$ d% I: |$ E3 X' H6 y
/dev/sdb1               /home2                  ext4    defaults        1 1
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4 s4 A# Q; V& n1 Gparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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fdisk 隞文芣舀 MBR 銝舀 GPT ,閬 GPT蝖祉雿輻 parted 游隞文脩′蝣,隞乩撠隞蝝 parted冽
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parted 臭誑湔亙其銵隞文撠勗莎臭撣詨末函隞歹摰撣貊函隤瘜憒銝嚗
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parted [鋆蝵孫 [隞 [窟]
+ \. c: q' R: A3 w5 @5 ^賊賂! I" y0 u( G2 i. {! O' Z2 n$ k
隞文踝
! g% A& y5 n# G& P5 @, i          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
+ ]7 y- o$ u, R' t3 f: K# A          憿舐內莎print
% k- O$ T  I- i. n: y: G+ w+ _          芷文莎rm [partition]+ j; I9 J6 }  d& r. i
靘憒:9 C) J. ~+ S+ b% j1 j( D

0 ?+ j& {! }, I* O  a寞銝:( L( Y3 C( f, d3 {+ O- S
(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:
) M/ W" h6 H9 P; g/ M, kPartition name?  []? 30T_part
! k) m) W' a4 o" L. i- x5 hFile system type?  [ext2]? ext2  (ext4銝霅血)( |7 |3 U, G5 j# a5 y3 Y
Start? 0B or 0%( k6 n3 R0 x; J# L" U8 k
End? 30TB or 100%
! \  I$ V" i. j7 h6 DWarning: You requested a partition from 0.00B to 30.0TB.
/ d& G4 j4 n% Q5 P6 w0 I- j. cThe closest location we can manage is 17.4kB to 30.0TB.5 y* v) |* }' |0 O. [. |
Is this still acceptable to you?
- U( v, v) l5 q* WYes/No? Yes$ B6 g% }' F6 B. X( \5 k" @1 `
Warning: The resulting partition is not properly aligned for best performance., q( C* k( [+ s: k
Ignore/Cancel?3 e2 B* i9 B. D* s8 H
雿輻牠xt2撠曹銝餈啗郎6 \% x8 _1 N/ u7 i
mkfs -t ext4 /dev/sdb1 ===> format
" K$ Z  R: z- \. k2 tERROR:! t4 l7 l9 {: r* w% w6 ~
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits, V2 M0 @6 t  [$ R# Y
        using a blocksize of 4096
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* ]$ n7 Y, y' R# I1 bformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit0 ?3 V* c' N2 ?) a  p6 w& A- a$ @6 n
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
$ v. X; k% |  k! c/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz7 X. e9 `/ Y1 {
cd /usr/local/src/e2fsprogs-1.42.7
+ j# @- q" Z/ f- e8 X: Imkdir build) R, n' R/ F  ?) Z
cd build
) `+ I" w) ^- h  I& E+ Y' j+ K1 J ../configure* o2 Z  d0 D9 S) Y+ C
make
; f0 d% x: q$ K" E4 x make install  z) Z) W+ _! c" k4 l% E9 y
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
/ Q, F* v) s) O2 `) W- r憿舐內銝:( E+ s: g, q$ D
This filesystem will be automatically checked every 27 mounts or
, y6 G7 q* y9 X& e  P. h# J% H180 days, whichever comes first.  Use tune2fs -c or -i to override.
: P' a9 N) ~0 m) X" {5 S/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
# \$ G  ~5 g- ~# p5 |/dev/sdb1     /home2     ext4    defaults     1 0(蝚砌詨1:瘥亙隞,蝚砌詨0:蝟餌絞銝甇撣豢fsck銝瑼X)
- \- A6 C% S2 w$ |" ?  f0 imount /home2
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=======================================================================( X# z9 a' [) ]5 d, I

, {4 p) F( g% O# e8 i& l3 g4 z. I5 ?[蝖祉皜祈岫]1.
- C- g  h3 d# r  a7 D5 d5 HLinux蝖祉撖怠仿摨行葫閰衣隞:* f, z( }: r+ ~* k* H* w. \
#time dd if=/dev/zero of=/home2/test bs=2k count=1000000   //     /home2 痂ount raid0 33TB 蝖祉, 11*3TB銋SCSI蝖祉: [: C* `1 f8 K  q* e7 _' U" s. \
1000000+0 records in
. S! C' }6 f: b$ ^1000000+0 records out/ ?! m. v* n, {. y! _2 u
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s8 G" r: j* u% j1 `# L3 b7 ]

4 C4 O) r; p+ N: W" _real    0m3.590s
- u1 a- V' N8 i# F. M; _user    0m0.130s8 ~5 A9 F! m  g6 N
sys     0m3.455s. s0 U% Y0 c* ~$ w' i4 p' t
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" y, X* g9 M6 j/ N/ [Linux蝖祉霈摨行葫閰衣隞:6 Z4 W* ]: D: m- D* j: f" \/ x
#time dd if=/home2/test of=/dev/null bs=2k; @) R  v% Y% B) R: D! _2 f! ~
1000000+0 records in  _5 S% F+ J( a+ {: t8 w9 j
1000000+0 records out
. `9 e& d/ r" {3 T# a. h! P, H) G2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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: c) O2 Q! m: V" ~* L; r$ xreal    0m0.954s' ^" b& A4 {+ S  I& V
user    0m0.083s& }1 j1 i; v& w- t( L' u5 x
sys     0m0.868s
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閫嚗
4 |9 L7 S/ x. xtime 其閮
, ?$ V) V. s2 \% Y/ gdd 其銴鋆踝敺if OF; U" |# c) W; y' x9 {. b# z; U" e
if=/dev/zero銝YIO嚗隞亙臭誑其皜祈岫蝝蝎孵神摨;璅 of=/dev/null 銝YIO嚗臭誑其皜祈岫蝝蝎寡摨6 a3 ?2 r2 J1 C7 c
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
5 R/ o% E- ^2 z1 D/ U4 a( C6 I鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
" }% }3 W2 Q1 P& _7 n9 T5 V豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
$ Z% _# o& T) p& X* {3 a7 Y4 j7 D望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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5 j$ C8 I" C% c6 t5 Y! @+ S皜祈岫摰閮敺芷 /home2/test5 [: x" K* _( w2 ^
2.
4 g' F4 ~! m% Y% R- }6 g虫蝔格寞:+ R! {* ?$ z4 p; s' k& E

3 k9 A* N: g4 H7 V0 Z9 w# l; |* m皜祈岫蝖祉霈摨:
2 L: n7 Y$ J& L) k% u, Yhdparm -t /dev/sdb& ]9 \  C) n3 c) j8 q9 M2 `
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/dev/sdb: (雿輻禿aid0摨血翰)4 Y# K9 b" r+ X" r( n0 Q
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec$ B+ S/ ~( A5 D; _) W

2 U  Y3 q; J& s7 w' E/dev/sdb: (敺靘寞LVM摨行)
5 m2 y0 V  e0 p1 y/dev/sdb:
7 o# E- P% z8 V. pTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec! J7 U% u3 q) C! o+ p! F- }  s
皜祈岫蝖祉撖怠仿摨:# b) w1 S  B; f/ ?# k0 u/ {/ Q
hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰). ]5 `( o7 P' e& R, p$ [5 z" d
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec+ W9 i" Y4 S2 Y) X6 x: w
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/dev/sdb: (敺靘寞LVM摨行), K" Z, e9 O, v- M1 A
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec
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) }& x! P, B+ c7 Q" b% f& r血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝. M6 g% x  a4 x0 x

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