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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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' a* ~, I) r- [" ~& f; a7 o : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid) b" n5 `% z: I5 _, \
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html9 h: [. f7 }6 R% U9 B( a9 \
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, ^2 X5 I6 K7 P" E% q
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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:/ ]1 Z) P  y* f, D
/dev/sdb1               /home2                  ext4    defaults        1 1
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parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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( s* k8 z* s% R( P0 ?! z4 Dfdisk 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: o& f" N' g  K2 Y; u' T
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parted [鋆蝵孫 [隞 [窟]
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隞文踝
' f9 T+ L# \' R6 e& j+ d5 Z          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯( }# X7 L2 p. a$ Y8 X7 J
          憿舐內莎print
* r# V7 P: x' @! ~+ V0 L0 u8 a          芷文莎rm [partition]
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寞銝:
' u, b4 A+ h+ ^8 f4 u(parted) mkpart primary 0 100% (primary皰artition name)4 k; ]/ P" g1 G  T1 I
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寞鈭:
; E) ~+ H& G5 B+ D1 o! oPartition name?  []? 30T_part" O/ c8 o7 A! F5 w" j' `* H8 D4 D
File system type?  [ext2]? ext2  (ext4銝霅血)5 e3 Y9 c2 W+ h5 y% f- S5 T5 {1 ]# ~
Start? 0B or 0%
9 P' a) ^) Y" c9 p) s/ p: m# ~End? 30TB or 100%
/ i& r' o) t; i. M0 y* }: xWarning: You requested a partition from 0.00B to 30.0TB.7 B7 e+ z' b- F" E1 U8 w# t
The closest location we can manage is 17.4kB to 30.0TB./ X: g3 ~9 y; j. C( v+ I/ ~3 X
Is this still acceptable to you?/ ]# x' o$ x4 H" ^* U" N
Yes/No? Yes& c5 x/ z( T* C* }5 V
Warning: The resulting partition is not properly aligned for best performance.
% _+ I# I4 R0 C$ c  `Ignore/Cancel?" T5 i+ ?* l. J  ]
雿輻牠xt2撠曹銝餈啗郎
; J0 _3 ^, c7 E, _1 ~2 p! \- Imkfs -t ext4 /dev/sdb1 ===> format) q$ Y5 {6 a7 U
ERROR:  b3 u: b$ e. k& e) V7 M
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits' L! P( t  h) V) H9 w
        using a blocksize of 4096
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit3 g4 B) ~/ o5 W0 I2 V5 X/ g7 Y
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
+ c  }; Y+ l+ o3 G4 q% o5 n, i/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz3 l6 z8 e2 [. f5 c2 h+ q1 ^
cd /usr/local/src/e2fsprogs-1.42.70 m1 z4 @5 S. N3 G: }, s2 q& ^$ `
mkdir build( `( n6 P+ K7 _, }4 B$ T9 U
cd build
" p. m  g2 S% u9 p ../configure5 \4 w* a2 p* N# ~; Z1 K( b/ N
make
& D$ i; ^/ [% p6 J make install
4 L+ q; f& s: c! S$ D) h, {mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1* b7 {8 e3 ^9 v9 ^
憿舐內銝:
2 [/ U/ x3 i4 Z: AThis filesystem will be automatically checked every 27 mounts or+ w: i$ [% j# X* |2 F, p; e7 V
180 days, whichever comes first.  Use tune2fs -c or -i to override.
' A% ], K0 p( [/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)% u( H) o: f! s2 ~$ C$ D$ ~% _
/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)* B% l/ A' K* v% ?) j7 Z' B5 W
mount /home25 J; F. {' a6 s$ [2 [2 {
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=======================================================================
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" b$ e" E' R* @6 e[蝖祉皜祈岫]1.
( M6 {1 }9 r4 |4 D& M  X% KLinux蝖祉撖怠仿摨行葫閰衣隞:, b/ x: M# ?/ b( |
#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
+ l$ B- {0 F$ Y- l& L/ J, V7 M4 t& v+ A1000000+0 records in3 w' C5 Y! Y) k* }
1000000+0 records out
( n2 m3 @# T, E2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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" a# `, }$ n( i  G4 W) ]real    0m3.590s% ?% R3 i0 Q& _
user    0m0.130s
2 U3 D( K8 Z% v- O- @( S" Tsys     0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:
2 m0 }6 ]- j9 W#time dd if=/home2/test of=/dev/null bs=2k
) {* s% N" k1 \+ V( n1000000+0 records in
! [8 A' |& P0 }. X9 `& M1 `1000000+0 records out
1 Z" l3 c1 V6 M2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s! G" J) x( Z3 J" S& h( b
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real    0m0.954s
  [7 b6 k- V" ?/ ^& r$ uuser    0m0.083s
, a, x1 l: m* A2 psys     0m0.868s' o( j0 M: t4 b* a/ M6 h. h3 G
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閫嚗/ f* w. r; k9 p# v
time 其閮' ]( y( A- f1 H# @' B
dd 其銴鋆踝敺if OF; O$ |! o* r4 y- o, A# p* i4 o) L
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- g  K! C+ u3 X0 Nbs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
! l; G1 w: N3 n- P9 c/ n鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
$ E: H( `1 {5 X% `! f2 r豢頞憭扯蝖殷憭甈⊥葫閰血撟喳( _; q3 _, ^' N7 k$ I3 _  s+ s
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭
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皜祈岫摰閮敺芷 /home2/test
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虫蝔格寞:
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0 v4 J% Z! N; o5 y1 D; J" b/ x皜祈岫蝖祉霈摨:8 J) }5 N) v9 s/ k: F7 d; V* W
hdparm -t /dev/sdb4 L( T4 X% ~1 q, m3 j2 t; O

6 J8 [! {7 y: z" d# \& s; k/dev/sdb: (雿輻禿aid0摨血翰)* v0 P+ A$ j, N3 m; f) x7 [
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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/ H- Z7 j9 b' h1 t, ?0 m7 q/dev/sdb: (敺靘寞LVM摨行)$ ~% }. y# L; m5 [( S8 t
/dev/sdb:
6 P1 ~" M; W  LTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
  m7 r  o3 t7 C8 `+ ~3 s皜祈岫蝖祉撖怠仿摨:+ h# t2 \/ H& m& S1 W! i" l) P0 U/ U
hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
& \6 P+ D' O& ?, E8 }" y" w- H Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec$ v6 ]1 b4 L! l7 |3 b
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/dev/sdb: (敺靘寞LVM摨行)' O% J. B1 g# v' |( d0 l
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec
# w% n$ m: D4 u7 Q+ N" R' X: t0 I8 E  q: k

  G" L; A; ^  G' C血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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