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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 9 e) s7 ^7 D+ h5 L6 @
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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
4 Q9 y- q3 K- N+ C% Y8 _% x3 V5 Ofdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html' f: B* S5 M. B$ W
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:7 Y4 N( s7 r; G( k3 P8 {
/dev/sdb1               /home2                  ext4    defaults        1 1  r2 }  }2 h" z5 u

1 b4 L7 C, T% z* k; e' u$ |parted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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' b: w: h5 c8 q2 Y2 y9 Bfdisk 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4 G( b# }4 m  Q3 c/ p! R

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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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3 ?: \: p- t: I0 m. E/ Pparted [鋆蝵孫 [隞 [窟]
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  z& U0 s9 \2 J, N6 ^9 i0 d隞文踝6 j+ _2 J0 ^; \- g- ^
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯. I8 @2 K9 G" y, |+ \
          憿舐內莎print
1 k* D- d. c, n          芷文莎rm [partition]
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寞銝:& x0 m5 |# i; R; k, F+ M0 r5 i
(parted) mkpart primary 0 100% (primary皰artition name). [, J( ]  p# u& B8 c
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寞鈭:9 K2 Z1 C2 O* u$ ~2 x3 N6 Y# V
Partition name?  []? 30T_part
5 Q7 y) Q- P2 R) `- K& KFile system type?  [ext2]? ext2  (ext4銝霅血)
/ ~) L& W& n' yStart? 0B or 0%
9 ~0 {6 a6 o" ]- s+ K, `3 lEnd? 30TB or 100%- R; ?8 n8 ]. t- Z. e
Warning: You requested a partition from 0.00B to 30.0TB.0 p0 ?3 P/ a7 K" e
The closest location we can manage is 17.4kB to 30.0TB.5 O) a# L( K4 A' I* w
Is this still acceptable to you?
( u, w/ E5 e4 j' J" E# `' Y; VYes/No? Yes- w# z2 i9 q2 h: t& P3 t. a8 t( E
Warning: The resulting partition is not properly aligned for best performance.
: i2 Q5 Y/ d! {3 t7 l( W: j. v% EIgnore/Cancel?
/ V+ _; F/ d) b1 O雿輻牠xt2撠曹銝餈啗郎/ D1 H& D: k1 n3 h4 [
mkfs -t ext4 /dev/sdb1 ===> format
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# C5 @+ w+ T# j2 emkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits# m' ~2 z* T- r% S3 V$ q0 {5 \
        using a blocksize of 4096
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format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
& }! C$ C' ^  A- O* x/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3( o$ h( U$ N6 c  N) W4 T9 _  f
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz; I$ ]/ E3 v5 z% F! @1 j9 p) T
cd /usr/local/src/e2fsprogs-1.42.7
' l, E! u8 o* m, X! Q& ]; B' w! Wmkdir build* `0 p! r1 ~, o$ \7 I, i
cd build
2 P4 E/ x6 k8 I ../configure
$ A4 O- G5 i! d5 }. q make! P& E  x4 x. J$ p$ ~
make install
% e# K, w1 z( J& lmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1" F( |" Y& O# |6 U. m' y' P
憿舐內銝:9 H( X/ z6 T  }" O
This filesystem will be automatically checked every 27 mounts or
( R6 V9 F7 h& ]. }180 days, whichever comes first.  Use tune2fs -c or -i to override.& n! A$ ~9 X, `' p( G' u, M* G) ]+ Q# z" W
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
7 Z, n6 l) H' M& m+ |/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)' l$ ^8 t: ?! ^- E( `+ k* C
mount /home2/ n3 E4 J. f6 p6 p" o8 H

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6 W4 F: R  _- r1 y" Z=======================================================================) _& s8 {' i2 W0 v, F

' N  _- v4 l8 H1 N& H[蝖祉皜祈岫]1.& ~" u- C- m/ {4 O, m! Q" I' e0 {( b
Linux蝖祉撖怠仿摨行葫閰衣隞:
- h* V! b7 U7 w: `- g$ r#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3 \, m! W5 q4 V4 J
1000000+0 records in% [6 r6 q! \3 p- d! a, R, Q
1000000+0 records out* s! k. Y% I2 \! H- S- x
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s7 q( Z$ U: N1 c9 }

8 V! W' x) S# S# U/ Q6 C# ~real    0m3.590s
9 C4 Z* s" A" A( ^% cuser    0m0.130s' h5 O4 \6 T5 q  u5 \+ U& I
sys     0m3.455s
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Linux蝖祉霈摨行葫閰衣隞:
3 i- f( O8 F1 L. G6 w. Q+ x, o#time dd if=/home2/test of=/dev/null bs=2k
/ A/ q$ c( M% C1 C8 Z8 V1000000+0 records in6 x& b' [: R5 O( j3 q
1000000+0 records out
6 h' |; F& n) d  z  U5 D; ?7 ^2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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- w, U! o# t- Z# [1 l- M  S" `real    0m0.954s( T5 d. v! v9 U; R1 c8 w% _9 A
user    0m0.083s
* R" x. `' o; ]! X* }% a4 x9 Ksys     0m0.868s
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閫嚗% h& G/ q7 @# Y* b) B, Z8 i- u! i& s
time 其閮
" }3 K4 D- I( s' u! ?3 q, [# Bdd 其銴鋆踝敺if OF
2 ^, C, Q+ y* F  D' F6 q0 O; C0 u- `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, S; ^( D. Z( d+ J4 }, S
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
/ T- l. w  j+ ^* W鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦" n6 h9 L2 j# v/ V* r. G
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
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) J. G# H7 @' H7 c皜祈岫摰閮敺芷 /home2/test
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0 _: @& [  L' ~1 @8 g" F虫蝔格寞:! L$ I( B/ ~% u! e2 \

  _) l* k, P3 a6 ?- |8 A+ H皜祈岫蝖祉霈摨:9 U$ c/ M# S( O: Y9 ]' n' o
hdparm -t /dev/sdb9 d' M1 R7 y* @/ c. p
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/dev/sdb: (雿輻禿aid0摨血翰)
$ X4 W! k* I& u: N' D- R) F6 v Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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1 e% Q% p9 p7 w! L" u' A# [/dev/sdb: (敺靘寞LVM摨行)
) Q( G# w6 ~  o4 E: }2 O/dev/sdb:* X3 e- q$ m. N/ y8 I3 z
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec$ H1 G, x7 K1 q; R. D) J2 `& j
皜祈岫蝖祉撖怠仿摨:$ z% t2 i3 p# Z
hdparm -t --direct /dev/sdb! \) n* A9 N' u- E- e; \7 c
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/dev/sdb: (雿輻禿aid0摨血翰)/ X0 ~! d  ^1 W3 [: P3 f
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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. M# j! J7 w: H1 m9 {5 J' C/dev/sdb: (敺靘寞LVM摨行)) Z5 {: K+ s2 v  B" W- u5 C0 ^6 K) Y- r
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec; Q5 r$ {. U3 m6 k

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2 i' A9 b: _/ J  K& y5 e血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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