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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 $ Q; l8 H! X, \$ l5 M% v2 H0 f
# @- r3 I' d4 x
: http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid7 [+ Y& X# I+ D1 e& G
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html7 e* @% O' t" h3 l) T! F: X
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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9 D3 @( Z+ M% A啣蝖祉,璈芸mount(銝隞孑ount芣舀急,璈銝芸mount) :/etc/fstab 乩銝銵:. \' H, X8 p' c: }
/dev/sdb1               /home2                  ext4    defaults        1 1: G! ^8 s; Z8 G! T! }5 {+ ~

4 ^% ]4 V, ?8 u5 Hparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/, H: B, M) _- n
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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4 R+ {5 o' p" v3 I5 b0 D6 Q
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! N5 L/ B3 G& C# R0 c9 N) ]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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1 K  P7 E$ ^( ~9 C* {4 k. Pparted [鋆蝵孫 [隞 [窟]
! c! j2 u; M+ Z; u! Q# u4 F賊賂
! {+ `) |8 C8 R3 ~! @隞文踝
4 p. o; [5 p4 I5 a          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯4 N% ?  o0 @; ]1 p6 `1 O/ c
          憿舐內莎print3 h1 e$ W8 y4 v( B
          芷文莎rm [partition]
7 F8 h! y8 m% X1 b. l7 U2 b% E靘憒:
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* W# e, \( f+ g2 K! r. z; n寞銝:
# S2 x- l5 I' B' c2 x' @(parted) mkpart primary 0 100% (primary皰artition name)
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% J8 T& A3 Y) ?8 D+ ^$ y1 O寞鈭:5 s- `: z8 S6 e
Partition name?  []? 30T_part  b8 U  t4 \% I& J0 }2 [# D1 s
File system type?  [ext2]? ext2  (ext4銝霅血)  [# }" ~5 v& Z8 o$ p
Start? 0B or 0%
' i* }* U  e* y# G/ EEnd? 30TB or 100%' o0 X; n* u4 Q
Warning: You requested a partition from 0.00B to 30.0TB.
$ V! q) b" k0 {7 ]: ], K4 kThe closest location we can manage is 17.4kB to 30.0TB.; X  V4 L; d, y$ K5 A! m
Is this still acceptable to you?; h) c$ K' H0 b$ ?: I, P# b
Yes/No? Yes
# S# i. R% H* LWarning: The resulting partition is not properly aligned for best performance.
* L( Y0 e# X- `4 _% VIgnore/Cancel?/ b& i! @+ @; S" _7 u
雿輻牠xt2撠曹銝餈啗郎3 b; R) z8 S. b8 }5 I! v: |  D
mkfs -t ext4 /dev/sdb1 ===> format
  {! E; G$ ^: a, P7 rERROR:( F1 {/ I9 Q. u# Y, k! S
mkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
1 |7 n- z3 u( m7 T        using a blocksize of 4096
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8 j* y2 j/ v9 A9 H1 _format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit, r; M; T+ h8 E9 X( M$ U7 G
/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3& G# E% L  ~! _4 @9 {3 `# @- U
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
. E$ [. j8 B! ?! j% D) Bcd /usr/local/src/e2fsprogs-1.42.7
' }+ }/ e- J! Q+ Dmkdir build) Z; C+ I! d+ K/ `7 c; U& y- d* [
cd build6 I) i( M5 I/ x6 l$ d( q- C
../configure
9 ^8 U7 z2 z$ }# f% E6 W make
! C3 @/ [$ y2 T& u: O, f+ E; Y- Q make install
  Z  U/ D, c/ L" vmke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
1 f5 s) A4 |+ ^憿舐內銝:
* G9 i: q6 l/ P; C2 _This filesystem will be automatically checked every 27 mounts or
. M9 C1 T4 g; o+ s180 days, whichever comes first.  Use tune2fs -c or -i to override.
8 G7 B7 {/ l# k0 p; e+ X/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
% S9 i" R4 h. b4 t: x! _0 y' N/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): ?, a, K; M7 z7 ]0 h$ S3 [* C: q
mount /home24 v4 c! c9 j3 Y) v! B# S
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=======================================================================
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# v$ r! `5 w! d6 J# X5 D9 m[蝖祉皜祈岫]1.% X4 L. I" B) Y$ e' A! z. m
Linux蝖祉撖怠仿摨行葫閰衣隞:5 D9 `1 J' h+ N* \. `+ P  `7 a
#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
8 K, J, ]$ G4 c! E! V% L1000000+0 records in
: Q! |$ ]0 U  \9 k9 l1000000+0 records out, p  D5 [6 c4 ?+ a. W$ U2 M
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s6 ~) A. m8 J" R* Y1 i
6 O* \( T* d7 J  {1 J9 ~! y
real    0m3.590s
5 G5 e: L2 y3 huser    0m0.130s
- v& N5 ]3 S- j6 ~8 m2 |! t  R" ^sys     0m3.455s
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$ Z' ]# e6 M" P. u; d1 v, D
Linux蝖祉霈摨行葫閰衣隞:! v7 P- _5 E# @) J
#time dd if=/home2/test of=/dev/null bs=2k
, m# F  G$ g3 ^4 I0 {) W- {) u1000000+0 records in) k4 H* _0 l& @2 ?! P$ O, A
1000000+0 records out: [  l6 S# m. H7 q2 Q5 y8 z
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s3 k: ?3 ]& J% N* Y3 o# V3 R4 o0 E
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real    0m0.954s2 o- ]- \  g, U2 U$ H
user    0m0.083s
4 M& b+ S- ]" c' ~. Lsys     0m0.868s  d. a0 |. ~& T

) e) |7 p4 v# G4 k7 }9 G4 Z閫嚗
2 ^; O6 M, t1 k) s. t$ j( E: Vtime 其閮
* I; ~+ N/ J* [dd 其銴鋆踝敺if OF
4 ?1 V; e, e# o! `; D) qif=/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' @! H# z+ X9 S* O  M
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
+ t& D% r) l' s" ^鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦1 ]! f; I$ k+ I- X6 }4 Y
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳) }3 H. X: V5 D8 z
望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭1 ]- I+ A. \- @# Y# k2 ?0 Z' R
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皜祈岫摰閮敺芷 /home2/test! S, r5 m- w& @8 l5 ~2 R! Z! P
2.
$ Q: l6 x  N4 b% p: r. _. j( d虫蝔格寞:
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皜祈岫蝖祉霈摨:2 X! v+ b" t( O& E% S0 k
hdparm -t /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)# U& A2 u- y; x) _
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec9 l5 j  r$ g! W

6 W% Z, n) k# S! P8 N6 Z/dev/sdb: (敺靘寞LVM摨行)
2 W7 \0 R1 j/ U2 n& ^! S/dev/sdb:
3 W' ~5 i& l+ @! UTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
; J8 t0 V8 A  g( V& f5 Z; X皜祈岫蝖祉撖怠仿摨:. t/ i2 {; ^8 W' v# n2 w
hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)5 Y$ |/ n  H3 i
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec; F! l, y* i" m, n  e- F! ^- v
* }( J# V& y& o7 x' Q8 B
/dev/sdb: (敺靘寞LVM摨行)
. _+ n  J7 O* f. U Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec* @; r& F9 ?: Q& U; |
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, T5 d& s" k1 h. i& E* G8 w% w* {血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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