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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 |甇摨閬 |梯璅∪
砍敺 IT_man 2017-3-21 22:08 蝺刻摩 , j! i) J+ W: j6 }

! w% }) A7 o2 p) z6 u9 |. |) t : http://linux.vbird.org/linux_basic/0230filesystem.php#parted  http://blog.yam.com/wesley1981/article/16596463        賊隞 fstab, findfs, mount  blkid$ `, B0 u+ y, _! P& t. Q
fdisk 隢 :http://blogger.gtwang.org/2012/02/linux.html
$ y; c1 v' K( O$ Y  V3 o7 k# `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/ I( U, t: t$ t5 Z0 P3 _: `3 p
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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:
- l; I. m# u$ c  {) d/dev/sdb1               /home2                  ext4    defaults        1 1  ~6 [. I, c& u: R( w# T, Y

! ]8 A0 [3 ]1 X1 z8 T. Zparted 閰喟敦隞:https://blog.gtwang.org/linux/pa ... -disk-partitions/2/
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* t5 B9 k. s' R' F8 J: Ifdisk 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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! E5 Y8 X  X3 F1 Y( Mparted 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 h5 X! G6 l0 b( H" gparted [鋆蝵孫 [隞 [窟]5 ?: X  Z5 d0 c5 _; q  C! A
賊賂+ l$ o" ?$ A9 n
隞文踝
5 Z& y! f: e+ o6 ~- t6 E: U! F          啣莎mkpart [primary|logical|extended] [ext4|vfat|xfs] 憪 蝯  M* f" O' C9 p- }+ s: ~6 G# M
          憿舐內莎print+ Y* G+ w8 G2 ?9 [: m
          芷文莎rm [partition]. p3 a- T! R0 a
靘憒:
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寞銝:
; K5 F1 Z9 S7 S8 n1 x0 g8 M( K(parted) mkpart primary 0 100% (primary皰artition name)
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寞鈭:
6 `' \6 V7 r" v9 CPartition name?  []? 30T_part; }) \& x' r# M/ h- \1 T" R
File system type?  [ext2]? ext2  (ext4銝霅血)
& r% h* s6 U! \( h! dStart? 0B or 0%
+ v6 a7 Z- `9 H6 C2 lEnd? 30TB or 100%6 l0 v6 N- G8 N3 q$ H  ?! c5 C" U
Warning: You requested a partition from 0.00B to 30.0TB.# R6 h8 n) ~7 `5 z; z5 B/ ]
The closest location we can manage is 17.4kB to 30.0TB.
. v0 _) ^- ^/ {! |5 y0 g- XIs this still acceptable to you?5 x) N3 |1 t' Q- Z+ r9 m
Yes/No? Yes& U0 `+ w" S4 v5 j5 u6 e2 Z4 I
Warning: The resulting partition is not properly aligned for best performance.$ ~8 a3 A* I, Z7 b- a' x
Ignore/Cancel?
' N/ v6 K/ \2 T; s+ v雿輻牠xt2撠曹銝餈啗郎
. G. ~7 ^+ h% l7 r0 ~  u% omkfs -t ext4 /dev/sdb1 ===> format
* o9 I  S- A" K1 d$ d) zERROR:
$ n" Q4 J% K; O( c: d4 `3 imkfs.ext4: Size of device /dev/sdb1 too big to be expressed in 32 bits4 ^2 ]' S# z: c" f& S8 n) V% |' ^
        using a blocksize of 4096
  M2 _2 u. T+ k, [+ O/ A4 cSOL:
' _( r" T- _" c) C( p) {format > 16TB see https://www.unix-ninja.com/p/For ... yond_the_16TB_limit
" u9 n/ `3 {: ?1 F+ H  i. U2 Y/usr/local/src/wget -Oe2fsprogs-1.42.7.tar.gz http://downloads.sourceforge.net ... _mirror=superb-dca3: z7 k; S% y; _( v2 r/ A# c/ x
/usr/local/src/tar -zxvf e2fsprogs-1.42.7.tar.gz
5 o7 I( v' p6 v  c$ ?5 r. ]/ Y' Xcd /usr/local/src/e2fsprogs-1.42.7
. O; [$ H7 k% Hmkdir build* m. J0 F( b, v( ?8 U% a
cd build0 P3 t2 e; O  a3 p8 Q, o0 M  m
../configure
3 M' S4 [# d: X7 |* m" {( w# E make6 k, J  c" @3 A& @  E9 Q6 D: a
make install& u8 f9 _: y) E- ~
mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 4194304 /dev/sdb1" o" ]* p( q1 ^1 X; U9 s
憿舐內銝:+ I* y' `2 y1 G; W
This filesystem will be automatically checked every 27 mounts or, \# u5 `: K6 t8 h  }; L3 ?
180 days, whichever comes first.  Use tune2fs -c or -i to override.  l: [5 z5 z) ?& M: u' _! k
/etc/fstab銝剖乩 : (fstab隞蝝:http://horace1123.pixnet.net/blo ... b%E8%AA%AA%E6%98%8E)
9 |0 a* A& Y# b5 W: P: u+ `% ~$ y/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)
; P, }0 l( b1 d  g6 {7 N4 Dmount /home2
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- ^( S7 c( |( V8 `( T2 H6 U$ U. \2 d

0 \: P; V9 z2 z* X8 m=======================================================================
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; v" F" q- W, S7 ~+ d7 @) ~3 x, J, T[蝖祉皜祈岫]1.
1 ~* w8 e3 L5 o% z, [Linux蝖祉撖怠仿摨行葫閰衣隞:
- O- E: `) _  |#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7 ?. e2 ~7 R$ i3 j$ x5 G& V3 ^
1000000+0 records in' C: }: t3 L$ Z1 J4 F
1000000+0 records out
/ ?. M0 Q1 o6 B: l# }2048000000 bytes (2.0 GB) copied, 3.58735 s, 571 MB/s) i, E( z2 `* h* Z4 c6 t' F# [
: G2 s+ b$ j0 G8 @0 h
real    0m3.590s
1 X3 g+ A& T. G9 {3 L* H. W% N* nuser    0m0.130s+ y2 e9 s# E; ~9 S' y+ \
sys     0m3.455s6 ?8 [8 h7 y4 p4 c  T' U

% P; v! a0 E4 ?% r, R( U; v; t. P6 f& L0 u3 R+ J# L! k' x; P0 k
Linux蝖祉霈摨行葫閰衣隞:& k4 f& r) K. w/ \0 W1 E! w2 ^0 g6 j: Y5 w
#time dd if=/home2/test of=/dev/null bs=2k
! J2 t5 H, X4 i1000000+0 records in
3 ?1 L' }% ?+ c  c. E1000000+0 records out
, U* y. z1 x/ k2048000000 bytes (2.0 GB) copied, 0.952334 s, 2.2 GB/s
2 U9 @. X; r7 s
0 O$ L  T: q# |# W& r8 [real    0m0.954s
4 i7 b! M1 U4 u8 ]$ ^3 u( Vuser    0m0.083s& V$ k1 t4 @. t8 H2 }/ p
sys     0m0.868s4 ~# _, u1 @$ E0 X( a
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閫嚗
5 z1 [0 i5 b! wtime 其閮% N0 k1 U7 b7 l! I3 c  m1 \
dd 其銴鋆踝敺if OF
8 t. b: R. [8 Q2 Q7 J1 Oif=/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' r5 b  U1 H" U# Y' c0 {2 T+ e
bs 舀甈⊥葫閰血桐憭批嚗count航撖怎嚗訾撠望航憭批.
; D3 i5 I6 u2 f- e8 M鞈頞憭扯皞蝣綽憭皜祈岫靘撟喳潦4 O* ^4 ~. o8 }1 x& o, F5 h
豢頞憭扯蝖殷憭甈⊥葫閰血撟喳* ~2 D- W5 o( l4 J3 k
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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: }! o) X- C1 P& p, d皜祈岫蝖祉霈摨:! P% e5 R% B: T  `8 ^8 m9 @
hdparm -t /dev/sdb
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2 u+ J, a7 M# ]1 f0 M/dev/sdb: (雿輻禿aid0摨血翰)7 F3 s9 V6 B' q8 x7 L8 g+ i
Timing buffered disk reads: 1732 MB in  3.00 seconds = 576.98 MB/sec
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& i5 C- p2 U5 E% h/dev/sdb: (敺靘寞LVM摨行)7 u0 r6 i4 F$ p
/dev/sdb:4 k+ g; O; n  I  N" F' S" p
Timing buffered disk reads: 546 MB in  3.01 seconds = 181.43 MB/sec
: F" Y% `% z2 D* ~8 g) g# q" ]皜祈岫蝖祉撖怠仿摨:& z$ j' N+ _% d# `& w0 M
hdparm -t --direct /dev/sdb& C! x7 a7 M2 a! y$ T
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/dev/sdb: (雿輻禿aid0摨血翰)3 v% @7 r" |7 W( e) P
Timing O_DIRECT disk reads: 1326 MB in  3.29 seconds = 402.57 MB/sec' F8 _4 Y  I" e# Z7 L3 F0 }% z

) w2 f# r- x0 m* f' q  k/dev/sdb: (敺靘寞LVM摨行)
7 W9 s# Y) [) p" X9 ]+ v Timing O_DIRECT disk reads: 560 MB in  3.00 seconds = 186.36 MB/sec2 [2 N# b- h. U

+ C+ o+ y" H2 `8 m, q3 a( x! C* R3 [# r, ?: w6 Y- h. W
血皜祈岫 /dev/sda  SSD蝖祉 摨血芣 raid0 scsi 蝖祉銝
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