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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
# B" `5 [1 M2 S% T" _- Z
6 e1 m- M. p$ ^6 B; t : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid" N2 C1 j! f. G" u1 _2 X
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html6 a% W& N9 g1 _. f
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" j& z3 ~* Y+ b5 B5 |9 e* C2 J
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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:! Z) y) W6 q. p7 H1 _
/dev/sdb1               /home2                  ext4    defaults        1 1* ~! X( B" l% }
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parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/3 d8 l! \) U, R0 \$ t2 A% D! S% I' P/ v7 F
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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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4 Z* d  {/ R2 _0 `2 l2 iparted 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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! v0 ?; M: t2 J  l  W( \" Yparted [鋆蝵孫 [隞 [窟]5 [& I! O0 E5 Q( `% [+ l3 _5 K
賊賂7 ]/ y; n, M, ^5 x- R! n" _
隞文踝
, Q# h/ V3 p5 H& V. w4 k& |          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯6 W3 g' n7 [& c; ~
          憿舐內莎print5 w9 m  X: B9 ?! g
          芷文莎rm [partition]
& l0 q0 \# P7 S9 z4 c2 Y靘憒:0 X) F, _# s1 n! G  F- S  T

# Z8 g( }8 Z, {  f( i/ s% O寞銝:
7 Z6 j5 c( p- ~3 u% ~(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:
! Z1 j& _5 f2 EPartition name?  []? 30T_part9 B) X0 E+ \0 g& e8 ~# @
File system type?  [ext2]? ext2  (ext4銝霅血)& [4 P# z" e( E0 v
Start? 0B or 0%1 N( Z) V4 _& M8 [! k
End? 30TB or 100%# t( `: @, k& m9 U3 v) [
Warning: You requested a partition from 0.00B to 30.0TB.
$ s# @4 P" z5 D  E: LThe closest location we can manage is 17.4kB to 30.0TB.
( l5 X+ ^& g5 Q' o& YIs this still acceptable to you?! J9 s' a' L1 N" z7 ?
Yes/No? Yes2 F9 c, T" u) H$ v0 s. @
Warning: The resulting partition is not properly aligned for best performance.
. a! o2 S! F+ m" @7 A0 ]Ignore/Cancel?' p. O3 p- H% y' m% s+ O- {
雿輻牠xt2撠曹銝餈啗郎
( Q4 \: _1 Z) w8 \+ o8 ~! }. b/ V% M. g  emkfs -t ext4 /dev/sdb1 ===> format
7 T. A/ _/ ]/ {5 WERROR:- s2 p; v8 P, p8 r
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
* Q& p- x) x& {1 o  W3 }        using a blocksize of 4096* ^0 X9 ?  S3 `5 P
SOL:
# S) K+ W- B! L* Eformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit$ D+ d# F* w4 g$ _  m3 G1 D9 c
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca38 r/ }2 L4 O. m( S+ ?8 I
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz7 m1 `+ O8 X4 W' ]3 ~
cd /usr/local/src/e2fsprogs-1.42.7
' y6 U8 ~* x% Q8 |8 U% Q# o7 F. Mmkdir build. ?$ h" Y+ A) R
cd build. l: X0 n% r  _3 `9 s: E
../configure7 l8 h; g1 ?: B3 |% W: Y# Q
make' m$ T; {+ m4 m4 |& i( A
make install
! \- A5 C7 o- B, v: o+ }mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
3 A# L: X# v! o; m  Q' Z憿舐內銝:3 L0 Q. o5 S# }0 n
This filesystem will be automatically checked every 27 mounts or
3 T+ S8 E: n( B180 days, whichever comes first.  Use tune2fs -c or -i to override.
' q9 W6 b! H- z2 d4 G6 L. u8 ?/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)* P5 N$ T& K. w! h; E7 N
/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)
9 U' \/ @+ d7 e. r1 Kmount /home2
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& T6 p2 M+ @, F0 K# ^. R4 u; r4 H=======================================================================0 l& I$ J& z% y, P; L
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[蝖祉皜祈岫]1.
! E# o+ ~. K4 Q4 @4 b% \! e1 p- A7 XLinux蝖祉撖怠仿摨行葫閰衣隞:
* j4 w% y4 V8 E  n0 ]1 `#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( N/ {) |' G' V" l) r6 p% m
1000000+0 records in3 }0 X6 E4 z6 X5 u- ^' W3 l
1000000+0 records out: L  f* M8 @3 g9 e6 R( Z' G
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
3 a: \$ N! |/ ?
( N7 s2 c! ~8 ^9 P- N6 l8 Qreal    0m3.590s+ R) B( g5 A: D' _0 |% @3 F
user    0m0.130s! h$ j' d5 t5 w% L4 ?) Z/ f
sys     0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:
8 D1 n! I2 L% w$ A  T( U7 K#time dd if=/home2/test of=/dev/null bs=2k
& G5 C% B9 t$ S. S- c1000000+0 records in
" ~& b: q: y8 k, k! _1000000+0 records out8 Q6 y0 X3 f4 b
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
* A8 J& B# Y  Z" V: D; `
& t( V" u& x& t7 \, a% zreal    0m0.954s
  x% a1 s' T; m. R9 C5 e. kuser    0m0.083s
* j1 x: T, f% W7 j  j6 `# xsys     0m0.868s
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閫嚗
9 c# K. E, X3 x7 T. [- T% ztime 其閮
! ^6 u4 h  w& ]4 K$ wdd 其銴鋆踝敺if OF3 _0 `. w1 V" w6 \  c8 M/ [
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- u; @5 f5 O" k  f5 B8 T+ C. w
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
- p8 J8 @& r6 s3 h. t3 @/ N鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
* B# q9 y- A( P$ k- m豢頞憭扯蝖殷憭甈⊥葫閰血撟喳6 }5 G* B. W4 C0 I7 J
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭/ F. T" W$ @3 H1 t2 _' y

1 m& p1 O2 R9 q+ h: L( B皜祈岫摰閮敺芷 /home2/test; i9 O" ?1 c2 `+ \* z5 K3 s& ?
2.
2 e1 ~' e2 f) G8 |' q6 [2 w虫蝔格寞:2 Y9 T* X6 }6 l! _6 V- h

: F3 B) S0 s1 A皜祈岫蝖祉霈摨:+ ]  ?' p1 R1 X
hdparm -t /dev/sdb5 S" m1 [* A: L9 L

; T! A, ~# J. R0 \. }/dev/sdb: (雿輻禿aid0摨血翰). C$ B0 l# a8 f) c' C
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
- \$ K0 ^3 r  n9 e
$ |8 g2 [( L5 ?1 i8 F/dev/sdb: (敺靘寞LVM摨行)
# S& G- W8 p5 S* w# ?+ f0 H/dev/sdb:
! c, t7 N3 a' j- G" w# `3 Y6 [Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec+ V3 S3 K5 v/ I6 {
皜祈岫蝖祉撖怠仿摨:* S1 T, `: ~0 I7 L
hdparm -t --direct /dev/sdb
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2 |" p- w4 k7 v0 P/dev/sdb: (雿輻禿aid0摨血翰)1 ~1 J0 ~0 \$ u- F. y, B# I
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec; O. }4 Q5 ~( x* D2 q9 y9 @# N' P6 Y, v

3 P6 o, _5 H( Z1 k7 X7 q; h% m/dev/sdb: (敺靘寞LVM摨行)
) `) n3 o3 j" t! v Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec8 t! ^( g, V9 E7 Z) R4 A# T
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1 W' }8 D+ {& ~2 \血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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