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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
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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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* x2 x; ?2 b% A# g7 v5 D$ Z1 @. V : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid( G& Y# a& F/ _. P
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html- j! G, g$ u' b% t+ {" d* n9 X  j  o
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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啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
* W6 m& f/ J( q+ d6 J0 R1 c0 n/dev/sdb1               /home2                  ext4    defaults        1 1+ F. U* x& V% ^  }! z) J

. K9 P( W. i( ^3 @4 @0 fparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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0 y5 L+ O. Y9 Nfdisk 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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2 H; r+ U3 E! _+ J& U$ A4 L, d) lparted 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* j# }5 I4 x6 V; T
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parted [鋆蝵孫 [隞 [窟]
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, |% m' d& s( n/ J; ^- j隞文踝- S$ }: H- j5 e: P# x
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯# f& C" P. l0 m$ N+ \6 h; V
          憿舐內莎print
( C) u+ R/ e5 T8 V' r          芷文莎rm [partition]# P8 Z. h+ H1 B; [0 j
靘憒:
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寞銝:
* m1 W; k! X) f+ A(parted) mkpart primary 0 100% (primary皰artition name)
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, s! ~: Q4 N2 O. w寞鈭:; L! V; \  A& v3 ^
Partition name?  []? 30T_part. i2 _* M" u0 Y: c
File system type?  [ext2]? ext2  (ext4銝霅血)
( |$ c  t- E9 W  UStart? 0B or 0%
6 j5 S; @9 c' u% D9 H. y/ mEnd? 30TB or 100%
6 G5 J% `$ ]# Y; oWarning: You requested a partition from 0.00B to 30.0TB.
8 N- M0 b. x4 sThe closest location we can manage is 17.4kB to 30.0TB.
( S' L( U) H- e* ~2 H' qIs this still acceptable to you?
5 |+ J& Q/ n' e* Z; kYes/No? Yes
, I( }  h6 t+ K  YWarning: The resulting partition is not properly aligned for best performance.  m: {4 i/ C0 W3 P
Ignore/Cancel?
- K3 M  T& X$ f0 H1 t$ T5 T9 |6 F  A雿輻牠xt2撠曹銝餈啗郎- p. T% e4 J6 N) F; w2 Y, Y
mkfs -t ext4 /dev/sdb1 ===> format
0 c& R+ o& J* i, O0 Q/ H/ VERROR:6 l% l; c: F7 _
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits, ^& l$ w# n1 w6 [& }+ @
        using a blocksize of 4096- A8 |) c4 M! t+ x* P
SOL:
6 J+ i" ?8 p8 p% H' t0 _) V) Oformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
( n8 }( j8 q7 \- ]' t1 C- b- x, {/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca39 V! w+ ?5 ^  V8 Z; E( r7 a! b. O
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz0 N5 G; _# k1 q+ B% ]. i' E! ^3 \" {
cd /usr/local/src/e2fsprogs-1.42.7+ K, i$ b0 C* P0 n4 Y
mkdir build% a) v* B  e# z
cd build
) j1 R% ?5 S1 ?) X5 M; j ../configure
7 D; O  {' i/ V- R* T* w' H8 C make
% }6 u) y# f( {# w4 v: E+ x make install0 U& g; J% t6 `4 ~( ?: e1 j5 P
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb15 e/ X6 A* k) c/ |5 t; M
憿舐內銝:
0 v: x3 C2 E" C+ h0 qThis filesystem will be automatically checked every 27 mounts or6 r/ I- s" q" R7 c
180 days, whichever comes first.  Use tune2fs -c or -i to override.( e% h4 @1 V: `  ]# J: Y, n
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
& p* v8 B, @5 _  F) I& J/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)( r9 h* M0 q! D# `, `. f! a
mount /home2
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=======================================================================
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, @0 C( Q0 W3 X7 E9 l( {7 ~8 \[蝖祉皜祈岫]1.
5 d) W1 C3 R1 Z! q4 e; N$ K8 l- s$ y2 {Linux蝖祉撖怠仿摨行葫閰衣隞:
0 I- F2 ?$ U2 K/ N  W* L+ _#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/ @! S2 i. G2 _$ ]% U
1000000+0 records in
% K2 w6 v" x0 w/ i. P1 M1000000+0 records out- k8 _  S- M7 D# I' e' n3 U6 R1 u5 r' k
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s
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% ~9 I! @6 y* X  |6 _0 A2 S8 c0 c. Ireal    0m3.590s" a& Z0 U) H+ L; C4 K
user    0m0.130s
: R" p& e5 c4 B" P2 h. xsys     0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:  g% `& D7 o* f4 E  F
#time dd if=/home2/test of=/dev/null bs=2k
" d+ V- W5 Y3 q' J1000000+0 records in/ g/ N+ U+ I: G
1000000+0 records out, {: }, ]' z+ i1 K: `
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s4 l# T8 Q+ N5 s+ p2 M+ O+ M
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real    0m0.954s. X. X9 S* N1 g( Y$ N+ x
user    0m0.083s" W: B, G7 s9 z' h# N% g
sys     0m0.868s
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閫嚗" u$ Q$ M: y$ t' Z( C
time 其閮
; Q/ {7 ^1 L9 H+ fdd 其銴鋆踝敺if OF: Z3 k7 W9 r% K( {9 S
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
% k9 S/ G# j0 Mbs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.. v' V! ~! ~- y* y7 a
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦; _! Y; R% l" j- h; Y4 L$ ~
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳/ k( W( o2 T8 {. p& N
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭  c; U  C8 [1 J! M0 D; P' H

: ^) u3 _9 R. \: O5 D皜祈岫摰閮敺芷 /home2/test
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! A2 D! r8 L# U1 y虫蝔格寞:3 p. O5 l( G$ N

6 N+ h0 m5 m$ a8 g8 c皜祈岫蝖祉霈摨:, d0 N" L0 L4 q# P
hdparm -t /dev/sdb: S7 R, P, u/ x9 Z5 d9 N. `- ^: k! t

. n6 m; K" a7 ~2 E! G/dev/sdb: (雿輻禿aid0摨血翰)( c. ?9 o8 c! k4 K1 H, V" E
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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' t: L# a# v' i9 L/ l2 g/dev/sdb: (敺靘寞LVM摨行)
3 T! U5 W; r9 X4 ?/dev/sdb:
; B% ^  j, u; F9 m" V. jTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
4 M7 ?: Z8 X* w7 r, O2 @. z皜祈岫蝖祉撖怠仿摨:* P" h2 o+ Z. k+ r  c
hdparm -t --direct /dev/sdb  @- s+ D, ^: Z6 j. H, @& [6 A! ]

# N; x. o" J3 S& P- r( Q/dev/sdb: (雿輻禿aid0摨血翰)
. [- K6 W4 u4 f4 {" n2 e, B Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec% m8 U2 _: |( _7 W

' I& Z1 Y) x" U4 A/dev/sdb: (敺靘寞LVM摨行)
" r  ?( `5 P" V0 H Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec
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血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝3 a' m3 O! V( U
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雿輻券

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