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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 ) l4 W3 B( a0 @

5 D3 \( u1 V  R! z : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid: P8 |2 u  X% J
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html7 U. B2 R. F1 }  x; y! v1 S% l
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
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4 b3 K' s* f% F6 k3 M啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
$ ]  l$ e( P/ U2 K9 g0 U' ~/dev/sdb1               /home2                  ext4    defaults        1 10 K' G* e  Z6 e9 W! _8 x' g

1 W! }0 c1 l' zparted 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+ ?6 _2 X; a9 W7 `7 ]! [
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) P' o! k3 d1 \- y; j+ n* Uparted 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2 _- v& z) T0 W; E4 C& Z0 j1 W

+ q7 H' n8 C: a6 ^! K( T0 `$ jparted [鋆蝵孫 [隞 [窟]  ]8 ~$ r1 |  c, q6 k1 S
賊賂9 B3 w; c6 ^; @( T; c0 Y. Z
隞文踝
& ^; y: [  Y' M* h( l9 [          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯- P8 M% ~/ W% T/ M* u5 N  F1 r( b
          憿舐內莎print
  s6 A" t7 x# X          芷文莎rm [partition]4 \! u7 c& c5 ]) H
靘憒:6 H7 z0 O, k" I2 c6 D
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寞銝:: V9 Y5 }* {6 d9 ]) f0 a4 n) G( m
(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:
1 k% C( i; K! k8 e" O/ N% S4 yPartition name?  []? 30T_part, V" ^' F+ {5 |' H5 _* ^
File system type?  [ext2]? ext2  (ext4銝霅血)
  e# |7 j! G, B. A& m2 t" jStart? 0B or 0%& b- s. Q8 e7 D
End? 30TB or 100%
9 I( e; T* H1 I. q: h+ EWarning: You requested a partition from 0.00B to 30.0TB.
( Z2 x+ n9 k* l, vThe closest location we can manage is 17.4kB to 30.0TB.
" h) }9 `) }- dIs this still acceptable to you?: m7 G. u" q- _7 Q2 c9 `7 t/ E2 r
Yes/No? Yes
7 ~: u/ H5 X1 \/ E8 \: X! ZWarning: The resulting partition is not properly aligned for best performance./ _) y  Z  ~2 P$ c* |/ e# f
Ignore/Cancel?3 G1 q3 o1 K' K2 q# P8 D$ ?3 a! E
雿輻牠xt2撠曹銝餈啗郎
& G) V6 f# S1 ?mkfs -t ext4 /dev/sdb1 ===> format6 L% E6 Y1 Z7 s, q$ H' A0 b/ r
ERROR:6 I1 c9 C* r( d# ~5 f0 Z
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits: u# @4 `5 m& P# l! R. [
        using a blocksize of 4096
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit( I' X% m0 Y$ p  W" x  s
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3; o7 n7 P, r$ p* k2 p5 V" f. e
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz8 t2 L1 |+ b2 j5 b# J
cd /usr/local/src/e2fsprogs-1.42.7
; c8 H* P- ^3 q2 Y8 q; B' {0 t4 Fmkdir build, r8 _9 Q5 r& ]$ |& x
cd build
; p9 n/ M6 ~% A" Z# A5 N, H4 { ../configure$ e8 a4 C( K* K: J( K7 _
make
* ?5 J  ^2 X6 T$ N make install7 d; q0 z/ v/ _
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
" r& r& j7 g! V7 e6 [/ P! h憿舐內銝:/ @3 Y: G( Y: e5 T5 r$ u( H. T) |3 u
This filesystem will be automatically checked every 27 mounts or
0 i7 G9 H) q. ]) u" C6 z180 days, whichever comes first.  Use tune2fs -c or -i to override.+ m- T8 L. x" V3 r! \+ ^: ^
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
2 s9 D6 m/ c: {& H/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)" i( F7 ~2 Z: L3 D2 p5 |5 \
mount /home22 u0 B9 n% s8 c& B: ^7 q3 b
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0 o7 D' F% N+ p, Z- b# V$ q=======================================================================* f( X; E- W* J7 p8 t. |' J; K1 ~* @

4 j5 T) L  Y! ^' [[蝖祉皜祈岫]1." n$ \8 t+ G" y) y
Linux蝖祉撖怠仿摨行葫閰衣隞:& t5 L7 K$ W) ]7 Z
#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4 {8 e, B$ f2 _7 @6 x! F
1000000+0 records in
* T) ^( e8 _) v2 \1000000+0 records out  P1 e  m; K1 x5 f' N/ W: g3 ?
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
! D$ q3 V" D5 F, K$ A& |5 O: I
$ |) b; u4 B5 _8 r7 P* Breal    0m3.590s
0 G6 _; A$ y" @+ J! e4 Uuser    0m0.130s* m! v9 g0 g, r4 P& C
sys     0m3.455s* P' |( N! @' e. E

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Linux蝖祉霈摨行葫閰衣隞:
, Q) z9 `! U6 L- ^#time dd if=/home2/test of=/dev/null bs=2k7 {) X& i! ?& g" A# ^1 q
1000000+0 records in
8 _' L/ J2 N7 R8 f- y1000000+0 records out( |5 P7 j5 ~0 b8 x, B! y- L
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
# h' x9 G0 O" e( z
% t; X& {9 f2 M2 H. @9 Yreal    0m0.954s5 b6 H$ g! `- `8 Q- r, ]- m  C6 {
user    0m0.083s
( s) _6 }" S% l4 @: ?: Csys     0m0.868s6 e$ w' J( i8 u0 N  z, s

5 ?1 M; Q1 b! J. i! L8 q8 }: `閫嚗  `. z' }  x! b: Y) c/ l2 A, |" f( S
time 其閮- b& d& d. A  C5 T, x2 a
dd 其銴鋆踝敺if OF) F) j) r4 _5 J
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( ~* x& ^) w; C0 p  v! P
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
. G' q6 b- n9 c  S5 ^& B鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
# F. x% O8 Q. i9 r2 B! ~豢頞憭扯蝖殷憭甈⊥葫閰血撟喳& j% T- L8 e% U4 e4 x
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭5 R1 ]0 g2 R+ e* d2 [

0 q4 s% o- X$ E' n皜祈岫摰閮敺芷 /home2/test" k$ s9 J% K$ A; }  |/ _) X- p
2.1 d6 R. |! S# R' {/ \
虫蝔格寞:
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皜祈岫蝖祉霈摨:
" B5 X( l. v9 r! s$ y0 d% h0 ]hdparm -t /dev/sdb' |$ Q  a) s$ D7 v7 v* `
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/dev/sdb: (雿輻禿aid0摨血翰)
# H; t. t9 T" ]( q9 x3 }4 ] Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec. \3 O' X8 H9 C
/ m; I# a  \; r: z( g; G9 q5 c' w: n
/dev/sdb: (敺靘寞LVM摨行)
8 Y# t7 K( @" w& A( \& y/dev/sdb:
7 m8 T* S5 v# f7 y8 nTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec6 z. @/ x6 `, q
皜祈岫蝖祉撖怠仿摨:2 l7 \7 @' i4 i$ p
hdparm -t --direct /dev/sdb
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3 D. d! [4 Y; r/ Y/dev/sdb: (雿輻禿aid0摨血翰)
/ c. e! q" W$ q Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec! c6 @3 K% g- D, p6 M9 ^5 `
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/dev/sdb: (敺靘寞LVM摨行)
; n( X) w, Q+ B- ?! E" d Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec5 a5 h5 ^+ M# T9 u
/ s! s4 v6 O4 {: u) E, k: R

) g  D1 }& E* m0 e! r; b血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝. k) A/ L6 X5 s

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