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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 9 q, q4 G3 q, |. ?

$ d* \! ^8 |) ?+ r+ S& w  Q6 u& S0 U : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid2 P8 U1 t/ v1 B5 ~4 p9 ?. U
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html$ N# B+ n( T$ A4 j
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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# F3 p  ]0 _. t5 i  s' E啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:
/ H# Y# }0 X4 R7 w* m/dev/sdb1               /home2                  ext4    defaults        1 1$ Z* h8 n- J" i$ ^
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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
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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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% h$ J- j/ T- s- K% hparted [鋆蝵孫 [隞 [窟]
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隞文踝# r$ j2 B! i3 y
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯! ?6 N& [! S6 g* @7 ?2 n, p
          憿舐內莎print. U  n% \& {+ y( w
          芷文莎rm [partition]
5 W2 k  }1 r$ k; {) s靘憒:
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寞銝:6 x( g; v" k/ z" e; H
(parted) mkpart primary 0 100% (primary皰artition name)) v/ G, H  f: O

2 G2 c! e* U' i+ p寞鈭:1 f: i. h) \- W7 l1 A1 y  ^; D
Partition name?  []? 30T_part0 V0 }/ g. I5 ~  J; K$ ~/ Z
File system type?  [ext2]? ext2  (ext4銝霅血)* ^: v; I$ ^, @6 ?* T
Start? 0B or 0%
7 p  J$ Y5 ^- \End? 30TB or 100%$ v/ u2 E5 _  c3 s/ N/ g$ b
Warning: You requested a partition from 0.00B to 30.0TB.& {7 g8 C! q3 d1 [! u! V3 i- K* G
The closest location we can manage is 17.4kB to 30.0TB.  x: t# O8 B! `7 P+ V! ^7 l! d  `
Is this still acceptable to you?; W# L6 i) H1 W$ y) N: A6 k- C1 J
Yes/No? Yes
* Y* {- L' i4 c+ yWarning: The resulting partition is not properly aligned for best performance.
' `/ H& X% _& j) w, M7 CIgnore/Cancel?# v1 J' k! K+ w' K* F* e
雿輻牠xt2撠曹銝餈啗郎9 ^% p% x6 e; ]# Y
mkfs -t ext4 /dev/sdb1 ===> format
; R+ X: j4 E4 b/ F2 x3 ZERROR:: I5 M; A; k1 w/ P) J$ L: r' `3 o
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
( [% j! X# U3 {; x* |8 [+ R' y1 m! \3 T        using a blocksize of 4096
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" E3 R( c6 D8 _% p. o, |format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit: _; @1 O2 w3 j3 Q8 X* J, J
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3. F* v' X  u4 O# w! L
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
( k( o! k2 b- h5 Ycd /usr/local/src/e2fsprogs-1.42.7
7 F# j) G- E2 gmkdir build) G+ h, {* ~& q
cd build' u) `+ A- Z- l5 |" \2 I! G
../configure
( v8 K; S) t$ h8 i6 B- ]) ]8 u make- ~+ o2 z, V+ x
make install
, F6 s+ n) R% y+ u" dmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1+ E$ L6 H7 @, ]! X+ N$ z
憿舐內銝:; s3 s3 j+ O) u3 u0 I4 }5 A& W0 {
This filesystem will be automatically checked every 27 mounts or
- E: v2 ?5 {1 H7 \2 O# d; w180 days, whichever comes first.  Use tune2fs -c or -i to override.' G% Q# I9 e; F8 E2 ^( W
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)' b8 k3 @. j. v% W; ^; L# l; h' G
/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)' ]( P3 C- Y/ l4 u3 M! e
mount /home2& a! P' s5 E$ v: F4 h- Z

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& u4 |3 b7 |! |& X' |! O=======================================================================7 w' O. Q8 O& m) F

  Z2 _+ {2 x4 R  x; b[蝖祉皜祈岫]1.; l7 w  V! L0 |! f0 x
Linux蝖祉撖怠仿摨行葫閰衣隞:) b6 Z9 `% J  y: E% S2 f( I
#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& h" S3 c% @- S3 E- X1000000+0 records in
$ z5 x+ F" u* p% o. n) F$ U1000000+0 records out
! l1 V! Z0 c# L) E- [  y! {6 B2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s" }1 c# I' b1 P
2 O3 ?+ ^2 [& p# E, e& L
real    0m3.590s
' `/ w0 f+ ^# W, Vuser    0m0.130s: @1 N% \0 t5 R4 m) e) U
sys     0m3.455s! {. j! I2 }2 l/ j* }2 b) B
9 ]* K# L. Z( H1 i4 D# e; G+ h

# t$ p- x) c/ j0 n' NLinux蝖祉霈摨行葫閰衣隞:
7 U) G2 a0 w( p; \! h: q* w4 d7 }#time dd if=/home2/test of=/dev/null bs=2k  e7 _4 E$ ^% h+ C" s
1000000+0 records in
( n6 e' q/ Q! m  t$ [6 n- U1000000+0 records out* B' D4 X) p9 q; W% }! {$ z5 x
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s9 K( {2 i8 X& p

; a1 O/ Q! @1 s+ w$ S5 a5 Oreal    0m0.954s
" R) \% b" M' k" \5 x. cuser    0m0.083s7 M% v5 k) ^7 K* d
sys     0m0.868s
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閫嚗0 r' i4 @7 J# \9 r* A7 p+ s; y
time 其閮
+ ]+ V: U1 A! a4 L- xdd 其銴鋆踝敺if OF
/ R8 k1 S1 ]1 D5 [* |5 {4 S! Kif=/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
" ^8 o0 G6 A. w3 W( q6 obs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.) o/ }/ B4 a. I$ Z, e
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦
/ b; x+ K) y+ k- r/ w9 g0 U3 i8 I9 ]豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
) ]& W7 v$ t" l  {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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皜祈岫蝖祉霈摨:: A6 D1 B- m3 Z0 q& p: Y
hdparm -t /dev/sdb. j5 ]' H# E9 e% D/ L

5 `6 z2 y7 k) Y/dev/sdb: (雿輻禿aid0摨血翰)
3 b3 e) U* m  q1 I/ o Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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/dev/sdb: (敺靘寞LVM摨行)3 z3 x- F* N& F& h5 }, L& o
/dev/sdb:! b: r, i8 \; a# ~/ B' P- |
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec* ?6 [/ Z) ?: \6 t  U* p
皜祈岫蝖祉撖怠仿摨:
/ L2 I- e% v- i) z( q! I hdparm -t --direct /dev/sdb: Z  J. `! b# N! B* Y: z
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/dev/sdb: (雿輻禿aid0摨血翰)- x- {/ T5 B$ ]2 r( a; {1 P& D
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec3 X7 @1 B" Y  P( @
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/dev/sdb: (敺靘寞LVM摨行)( [: j% `) b  h. B
Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec! d+ m: Y- q$ V
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, N4 B8 u/ D( G! z  L" D! ~血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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