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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( U4 F( x. F  ]. P0 \; a# I4 `- d
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html; b) ~4 f" `/ Y: D2 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
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* P1 m7 K$ G, ~/ \4 i啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
9 D$ N- }, O- N0 ^# y/dev/sdb1               /home2                  ext4    defaults        1 16 v/ v$ v& V. ^/ Y
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parted 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- `& z: n4 `4 Z3 d
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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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5 C# w4 Y, W. r( S- _* i% Lparted [鋆蝵孫 [隞 [窟]* I/ c' i& K' s+ D5 L8 ?
賊賂
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          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯
) f9 \# P9 W# Q7 M          憿舐內莎print. J: p6 b0 }6 y
          芷文莎rm [partition]
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寞銝:- V  ]) z2 }+ X3 a. s' q9 \' p
(parted) mkpart primary 0 100% (primary皰artition name)# Q( I& ?& h; s0 {

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Partition name?  []? 30T_part
& a2 {3 u; M7 {1 U! mFile system type?  [ext2]? ext2  (ext4銝霅血)
1 x9 P' ~/ I) Z& AStart? 0B or 0%4 x+ O+ k) E1 |
End? 30TB or 100%
1 s4 V" u8 u) L, ~# fWarning: You requested a partition from 0.00B to 30.0TB.
, c/ e, e  V, T" NThe closest location we can manage is 17.4kB to 30.0TB.
4 v+ U: p* w% e3 Q4 w' _2 t/ lIs this still acceptable to you?
9 Z* E$ O2 O, _# QYes/No? Yes; U; o. r$ c: m8 {- S# N/ y
Warning: The resulting partition is not properly aligned for best performance.8 ?% u2 b/ @- t6 B
Ignore/Cancel?
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1 a) Q8 m: B8 e, bmkfs -t ext4 /dev/sdb1 ===> format# v8 v7 F8 H) p5 ~$ a
ERROR:0 u! J& G! @/ p0 t
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits) h- O" k: }# z; D3 M
        using a blocksize of 4096
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! o  j! v- I+ n9 c  I0 p% Wformat > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
4 }$ h' V7 Z9 u. v# e( o/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
: W/ Z9 D' @' G5 P9 m  [/ U% t  x/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz2 X, X, N! e: p# N# y3 w
cd /usr/local/src/e2fsprogs-1.42.7
& R/ o1 f! J3 e9 n0 N" ?2 K2 fmkdir build2 L7 o1 h, X; X1 a
cd build
2 a  O$ B8 L9 y' l9 ` ../configure
( q! g" L( [* q* \/ B% Z" {, a- e7 m make
0 Q$ D! L4 C" ?( O5 s5 C7 d make install
3 j4 @! q* y! l- Jmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
. v( `2 Z3 N! M% E5 b憿舐內銝:! _. B2 k' [6 C5 }( l- p3 q
This filesystem will be automatically checked every 27 mounts or% m7 V- f  C9 D! e. W: s, a3 P
180 days, whichever comes first.  Use tune2fs -c or -i to override.; K. m1 Q1 F$ D+ i6 y
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
# j0 E+ ]$ _- u' l7 K/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)) J( o6 l% j4 Q6 r" B( M( \  r
mount /home2. L! L" ]: s' ?
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" H" d+ K) n& Z. y/ s' I* r=======================================================================
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[蝖祉皜祈岫]1.
; e1 o# X; M2 {1 f1 n( u! SLinux蝖祉撖怠仿摨行葫閰衣隞:6 o* |% X4 q4 \# I9 S, o5 ]6 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) Q3 Q4 Z" g5 o9 g) L# W
1000000+0 records in8 G  p8 B% m' o, _7 T% c) b5 F
1000000+0 records out1 W3 t' Z, S! L- h7 g4 S6 P3 x8 L6 e7 j
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s8 i, d  u8 y3 H) A0 t( d
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real    0m3.590s- C& \& `8 ?; f, ?% ]. j
user    0m0.130s& a0 Y7 R% Y; b4 u. q3 }2 w
sys     0m3.455s
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. Z: e6 b4 c- t: p4 WLinux蝖祉霈摨行葫閰衣隞:) {8 ?' f0 |- n7 L6 l5 _
#time dd if=/home2/test of=/dev/null bs=2k
$ b& I- I1 \$ r" h3 K. k6 o1000000+0 records in; M: S5 o5 a1 W) ?
1000000+0 records out
* [; l- q' f) w1 A* s5 M2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s3 i* y* Y+ T1 Z* e- j
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real    0m0.954s: N6 U# e# S* }5 C& l& W1 w
user    0m0.083s2 m" o7 k4 x+ ?+ V
sys     0m0.868s( u- U4 i' x! ^7 e+ {  v. S

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time 其閮
/ X3 W' W4 u, Q; k% E% ]1 c5 sdd 其銴鋆踝敺if OF& |& ]' _9 ]0 n1 ]6 K
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
' l! t7 M/ s. ^bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.$ T: T1 d0 }- z4 `6 E5 T' h
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
7 X- s) k: W1 n1 e8 W" _豢頞憭扯蝖殷憭甈⊥葫閰血撟喳9 z3 r- k- I; R" r. _
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭1 r' _3 d% m& E# h$ y! X, E! F4 I

! u- P0 n- I, N皜祈岫摰閮敺芷 /home2/test
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+ }! p! l% C& w# V/ ~0 G! r虫蝔格寞:8 |- ^; G+ ^1 Q, H8 k# V

; k3 N( a& v0 S" H7 Q皜祈岫蝖祉霈摨:  Q1 m8 R- I& ?: R; N. ^( ^
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)% m' n3 g9 V0 u; P
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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! K  f' A  N9 l) ?/dev/sdb: (敺靘寞LVM摨行)
  s5 s3 A( E7 p: `- ^/ M& N' O/dev/sdb:
4 |0 y. W# `' |& r% y% Z# K3 FTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
: J' A7 i& l: Z" f" O  @$ ^皜祈岫蝖祉撖怠仿摨:% k' d6 K0 P4 l, N1 u" C
hdparm -t --direct /dev/sdb
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6 w( e2 c5 j( Z: F+ ?; e3 r5 V0 N; _/dev/sdb: (雿輻禿aid0摨血翰)5 C8 I( r4 U' Y6 ~- x: z. {' w* B
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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0 O* c& T+ K* {/ F- W4 i5 }! X+ }/dev/sdb: (敺靘寞LVM摨行)
4 k( g: o( P# K Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec5 s# B2 ^& N$ j: `

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3 u. n4 X9 l: ]6 W$ Y. T* |+ l( W血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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雿輻券

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