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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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! d; H: g/ R1 z, p : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid5 A, ]" g4 R- Z+ z) y
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
* s# X; S  j) ?" F' Qformat 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 G# n, D8 V! B# i9 h* ?( F7 P' j
/dev/sdb1               /home2                  ext4    defaults        1 1
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' r/ n' l# X, L% u5 j7 wparted 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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1 L! G8 X1 U0 \% d& aparted 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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/ }; {+ s% K# Q0 V" s: r1 @parted [鋆蝵孫 [隞 [窟]; {; l$ t4 p4 O8 y4 v0 p. _4 b  [) f
賊賂* }/ u' a! f1 B' }9 ?3 z  b
隞文踝- y* [/ D& E. c4 o& q3 W
          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯* v% L7 ]7 c9 E  ~! y* S* t
          憿舐內莎print4 n9 J1 d$ Z* f. u% G' l- f
          芷文莎rm [partition]( I  w/ u1 _, O* I' Q5 @
靘憒:! s4 D# o" i6 f; M

: H% @6 ]9 S1 b/ f5 @8 v寞銝:
) k6 v; ]: x4 S6 N. g(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:9 d/ m2 X) V9 e- u+ L# z
Partition name?  []? 30T_part
+ V( J1 M) z1 e8 K- VFile system type?  [ext2]? ext2  (ext4銝霅血)
0 I! S, `+ ~" W3 g( b. i/ `5 s, fStart? 0B or 0%
2 V! G! \( C. [# ~End? 30TB or 100%
# l& K, x) C" sWarning: You requested a partition from 0.00B to 30.0TB.3 l9 H6 e) n) Y
The closest location we can manage is 17.4kB to 30.0TB.4 n3 h# C1 x. O: ~8 O
Is this still acceptable to you?0 P: S& ?2 P  ?2 Y; |8 T
Yes/No? Yes
( c! o( r* q9 P5 V8 oWarning: The resulting partition is not properly aligned for best performance.
9 q4 ?# a+ W7 J& d+ V" z2 JIgnore/Cancel?
2 S& \9 s, D  m5 l雿輻牠xt2撠曹銝餈啗郎
) K) @( Y& s6 v( ?& X$ A# xmkfs -t ext4 /dev/sdb1 ===> format
8 v3 ~, j. z5 H' \% ~9 n" I, [+ YERROR:
$ x( }2 v. E8 O5 \" P) omkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits
9 y0 J2 R( N1 T( O1 X* i: @% Y  U, J        using a blocksize of 4096  S& s  R# ?1 a* v2 o4 l7 z
SOL:
3 R9 C- p3 H5 c( l' Z& {) S+ p* v3 @format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
/ a+ k$ I0 Y- L5 A4 I& I/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3
& _: \- r' N1 ?) F/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
* l% ]1 y. h3 H: V4 ncd /usr/local/src/e2fsprogs-1.42.7
  F5 q+ ^7 N; x. Y' Dmkdir build
5 g$ C. D/ t) f/ p, Vcd build
6 w7 S3 Z0 S$ \" Z; Z  q ../configure9 M: q$ u6 ~! h% @1 H8 v
make  S- R$ j) m+ M2 k! p
make install
: W2 o  G' W, _6 Ymke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1
3 z' f2 j7 V4 q9 j, _; j憿舐內銝:' ]- S! l) J8 B# a7 R/ y, X  G
This filesystem will be automatically checked every 27 mounts or( x3 k  w8 Y9 z. w2 e
180 days, whichever comes first.  Use tune2fs -c or -i to override.
4 g2 @$ P' x. R- S" B( x' M( R% Y* @/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)9 b! P! ]& k; R# }5 B, Z2 G( q
/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)
3 g' {$ U; U0 Xmount /home2# v0 e* z  @0 Z: i6 g

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: C, p- V8 n3 f3 i) Y=======================================================================
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2 X4 n* f5 v# j1 s3 P+ z[蝖祉皜祈岫]1.
$ \: ]5 P* r& C. s7 [  U, xLinux蝖祉撖怠仿摨行葫閰衣隞:* e8 E- B# d; Q
#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
2 o2 H" x8 K$ l  k+ a1000000+0 records in& B8 g2 \+ n% n' y: r, r$ e; h  R& }/ H
1000000+0 records out8 g/ J8 @% F$ W% S
2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s" d; j! z2 s1 ^2 c# o5 ?0 ], X

1 B& S+ u" V: J+ Y6 \real    0m3.590s1 q2 B- d2 s; b' ]: |1 h- Z/ d
user    0m0.130s
6 C% V  ?& U" j3 ?  N' I7 Z6 p# Hsys     0m3.455s; c' v" Y# S4 O" `. D2 |

: ^$ V  a" ?5 J7 D& z5 m; ~* \# J6 H$ d1 b2 Z' i
Linux蝖祉霈摨行葫閰衣隞:
0 A# s- ]& j5 p, L  q& v( e#time dd if=/home2/test of=/dev/null bs=2k
; c  b& j3 ]: T: i1000000+0 records in
6 J! `+ g/ E7 e' Y. A1000000+0 records out" m& Q' S7 s* F
2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
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real    0m0.954s
  t" }; f7 G2 y9 N6 d5 ^3 G! Y0 nuser    0m0.083s
$ k, ?1 A6 j$ i$ [sys     0m0.868s) ^" a2 V2 m/ _$ p; l: h1 _
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閫嚗
% J) s% Q  h6 I, Itime 其閮
4 W5 n1 L4 ~) ]dd 其銴鋆踝敺if OF' k* U! Z  }' _3 Y  l
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
: Q: b0 z# ~: I( [bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.% Q3 ~) {9 b3 a/ D3 L
鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦) _& i- i; z! o/ u1 T8 F* S: G0 U, k! s4 P
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳
2 f" u8 x& x: d+ W: E, f9 n5 G+ ~望葫閰衣敺啁豢憿舐內摨衣貊嗅翰鈭& u6 m! a- O0 E; x4 L7 x; Y) N. H

+ a& s2 Z% U4 |! ?3 q皜祈岫摰閮敺芷 /home2/test
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虫蝔格寞:& ]3 p4 u# e) o" u9 }# m) _# A

, j% J8 {8 u( N# u" ^& L& q皜祈岫蝖祉霈摨:1 ]5 k, |& K% O$ h; ]
hdparm -t /dev/sdb
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- U) c" n7 U- u) T) _, H4 Z. {/dev/sdb: (雿輻禿aid0摨血翰)% X) @/ L8 A- E5 x: r  z. V- _
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)
% D$ k1 r/ f( t- u% R- ]/dev/sdb:
) X$ u) n8 H- _$ I" v8 FTiming buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec+ F2 F. F  w6 o$ V7 X, R
皜祈岫蝖祉撖怠仿摨:
# Q: C, i0 s9 i% I# B5 h hdparm -t --direct /dev/sdb
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/dev/sdb: (雿輻禿aid0摨血翰)
: E- m$ `9 g7 E/ ?7 U$ C# s Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec
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& l2 J. z3 z( V# p3 _9 n' h/dev/sdb: (敺靘寞LVM摨行)
# g6 a, H; s* f, ] Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec
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& k6 s/ {* p( M* J. |! Z+ k血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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# u1 p- L2 \1 t0 \( c( }0 Z; c
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